%% Papers Published
@article{fds246067,
Author = {Crawford, CB and Sindile, A and Akdogan, T and Alarcon, R and Bertozzi,
W and Booth, E and Botto, T and Calarco, J and Clasie, B and Degrush, A and Donnelly, TW and Dow, K and Dutta, D and Farkhondeh, M and Fatemi, R and Filoti, O and Franklin, W and Gao, H and Geis, E and Gilad, S and Haeberli,
W and Hasell, D and Hersman, W and Holtrop, M and Karpius, P and Kohl, M and Kolster, H and Lee, T and Maschinot, A and Matthews, J and McIlhany, K and Meitanis, N and Milner, RG and Redwine, RP and Seely, J and Shinozaki,
A and Sirca, S and Six, E and Smith, T and Tonguc, B and Tschalaer, C and Tsentalovich, E and Turchinetz, W and van den Brand, JFJ and van der
Laan, J and Wang, F and Wise, T and Xiao, Y and Xu, W and Zhang, C and Zhou,
Z and Ziskin, V and Zwart, T},
Title = {-Measurement of the proton's electric to magnetic form
factor ratio from 1H(over -->)(e(over -->),e'p).},
Journal = {Physical review letters},
Volume = {98},
Number = {5},
Pages = {052301},
Year = {2007},
Month = {February},
ISSN = {0031-9007},
url = {http://dx.doi.org/10.1103/physrevlett.98.052301},
Abstract = {We report the first precision measurement of the proton
electric to magnetic form factor ratio from spin-dependent
elastic scattering of longitudinally polarized electrons
from a polarized hydrogen internal gas target. The
measurement was performed at the MIT-Bates South Hall Ring
over a range of four-momentum transfer squared Q2 from 0.15
to 0.65 (GeV/c)(2). Significantly improved results on the
proton electric and magnetic form factors are obtained in
combination with existing cross-section data on elastic
electron-proton scattering in the same Q2
region.},
Doi = {10.1103/physrevlett.98.052301},
Key = {fds246067}
}
@booklet{Belz95,
Author = {Belz, JE and Potterveld, DH and Anthony, P and Arnold, RG and Arrington,
J and Beck, D and Beise, EJ and Bosted, PE and Bulten, HJ and Chapman, MS and Coulter, KP and Dietrich, F and Ent, R and Epstein, M and Filippone, BW and Gao, H-Y and Geesaman, DF and Hansen, J-O and Holt, RJ and H},
Title = {2-body photodisintegration of the deuteron up to 2.8
gev},
Journal = {Physical Review Letters},
Volume = {74},
Number = {5},
Pages = {646-649},
Year = {1995},
Month = {January},
Abstract = {Measurements were performed for the photodisintegration
cross section of the deuteron for photon energies from 1.6
to 2.8 GeV and center-of-mass angles from 37° to 90°.
The measured energy dependence of the cross section at
θc.m. = 90° is in agreement with the constituent
counting rules.},
Key = {Belz95}
}
@article{fds246013,
Author = {Yan, H and Li, K and Khatiwada, R and Smith, E and Snow, WM and Fu, CB and Chu, PH and Gao, H and Zheng, W},
Title = {A frequency determination method for digitized NMR
signals},
Journal = {Communications in Computational Physics},
Volume = {15},
Number = {5},
Pages = {1343-1351},
Publisher = {Global Science Press},
Year = {2014},
Month = {January},
ISSN = {1815-2406},
url = {http://dx.doi.org/10.4208/cicp.110613.270913a},
Abstract = {We present a high precision frequency determination method
for digitized NMR FID signals. The method employs high
precision numerical integration rather than simple summation
as in many other techniques. With no independent knowledge
of the other parameters of a NMR FID signal (phase φ,
amplitude A, and transverse relaxation time T2) this method
can determine the signal frequency f0 with a precision of
1/(8π2f 20T22) if the observation time T ≫T2. The method
is especially convenient when the detailed shape of the
observed FT NMR spectrum is not well defined. When T2 is
+∞ and the signal becomes pure sinusoidal, the precision
of the method is 3/(2π2f20T2) which is one order more
precise than the ±1 count error induced precision of a
typical frequency counter. Analysis of this method shows
that the integration reduces the noise by bandwidth
narrowing as in a lock-in amplifier, and no extra signal
filters are needed. For a pure sinusoidal signal we find
from numerical simulations that the noise-induced error in
thismethod reaches the Cramer-Rao Lower Band (CRLB) on
frequency determination. For the damped sinusoidal case of
most interest, the noise-induced error is found to be within
a factor of 2 of CRLB when the measurement time T is 2 or 3
times larger than T2. We discuss possible improvements for
the precision of this method. © 2014 Global-Science
Press.},
Doi = {10.4208/cicp.110613.270913a},
Key = {fds246013}
}
@article{fds246118,
Author = {Ye, Q and Chen, W and al, HGE},
Title = {A High Pressure Polarized 3He Gas Target for the High
Intensity Gamma Source Facility at the Duke Free Electron
Laser Laboratory},
Journal = {European Phys. Journal A},
Volume = {44},
Number = {1},
Pages = {55},
Year = {2010},
ISSN = {1434-6001},
url = {http://dx.doi.org/10.1140/epja/i2010-10932-0},
Abstract = {Following the first experiment on three-body
photodisintegration of polarized 3He utilizing circularly
polarized photons from High-Intensity Gamma Source (HIγS)
at Duke Free Electron Laser Laboratory (DFELL), a new
high-pressure polarized 3He target cell made of pyrex glass
coated with a thin layer of sol-gel doped with aluminum
nitrate nonahydrate has been built in order to reduce the
photon beam-induced background. The target is based on the
technique of spin exchange optical pumping of hybrid
rubidium and potassium and the highest polarization achieved
is ~ 62% determined from both NMR-AFP and EPR polarimetries.
The phenomenological parameter that reflects the additional
unknown spin relaxation processes, X, is estimated to be ~
0.10 and the performance of the target is in good agreement
with theoretical predictions. We also present beam test
results from this new target cell and the comparison with
the GE180 3He target cell used previously at HIγS. This
is the first time that the sol-gel coating technique has
been used in a polarized 3He target for nuclear-physics
experiments. © 2010 SIF, Springer-Verlag Berlin
Heidelberg.},
Doi = {10.1140/epja/i2010-10932-0},
Key = {fds246118}
}
@article{fds246125,
Author = {Kramer, K and Zong, X and Lu, RC and Dutta, D and Gao, H and al,
E},
Title = {A High-pressure Polarized 3He Gas Target for the High
Intensity Gamma Source (HIGS) Facility},
Journal = {Nucl. Inst. Meth. In Phys. Research},
Volume = {582},
Pages = {318},
Year = {2007},
Key = {fds246125}
}
@article{fds304559,
Author = {Ye, Q and Laskaris, G and Chen, W and Gao, H and Zheng, W and Zong, X and Averett, T and Cates, GD and Tobias, WA},
Title = {A high-pressure polarized 3He gas target for
nuclear-physics experiments using a polarized photon
beam},
Journal = {European Physical Journal A},
Volume = {44},
Number = {1},
Pages = {55-61},
Publisher = {Springer Nature},
Year = {2010},
Month = {April},
ISSN = {1434-6001},
url = {http://dx.doi.org/10.1140/epja/i2010-10932-0},
Abstract = {Following the first experiment on three-body
photodisintegration of polarized 3He utilizing circularly
polarized photons from High-Intensity Gamma Source (HIγS)
at Duke Free Electron Laser Laboratory (DFELL), a new
high-pressure polarized 3He target cell made of pyrex glass
coated with a thin layer of sol-gel doped with aluminum
nitrate nonahydrate has been built in order to reduce the
photon beam-induced background. The target is based on the
technique of spin exchange optical pumping of hybrid
rubidium and potassium and the highest polarization achieved
is ~ 62% determined from both NMR-AFP and EPR polarimetries.
The phenomenological parameter that reflects the additional
unknown spin relaxation processes, X, is estimated to be ~
0.10 and the performance of the target is in good agreement
with theoretical predictions. We also present beam test
results from this new target cell and the comparison with
the GE180 3He target cell used previously at HIγS. This is
the first time that the sol-gel coating technique has been
used in a polarized 3He target for nuclear-physics
experiments. © 2010 SIF, Springer-Verlag Berlin
Heidelberg.},
Doi = {10.1140/epja/i2010-10932-0},
Key = {fds304559}
}
@article{fds246068,
Author = {Kramer, K and Zong, X and Lu, R and Dutta, D and Gao, H and Qian, X and Ye, Q and Zhu, X and Averett, T and Fuchs, S},
Title = {A high-pressure polarized 3He gas target for the
High Intensity Gamma Source (HIγS) facility at Duke Free
Electron Laser Laboratory},
Journal = {Nuclear Instruments and Methods in Physics Research, Section
A: Accelerators, Spectrometers, Detectors and Associated
Equipment},
Volume = {582},
Number = {2},
Pages = {318-325},
Publisher = {Elsevier BV},
Year = {2007},
Month = {November},
ISSN = {0168-9002},
url = {http://dx.doi.org/10.1016/j.nima.2007.08.243},
Abstract = {A new polarized 3He target has been developed for nuclear
physics experiments utilizing the High Intensity Gamma
Source (HIγS) at the Duke Free Electron Laser Laboratory
(DFELL). This target is designed for a broad program of
physics employing high intensity polarized photons and a
polarized 3He target as an effective polarized neutron
target. We report the performance of this target based on
the technique of spin-exchange optical pumping (SEOP). Due
to the significantly larger photon beam size at the HIγS
facility than that of a typical electron beam at electron
accelerator laboratories, the HIγS 3He target contains a
larger number of 3He nuclei than any polarized 3He targets
reported previously. A target polarization on the order of
33-46% has been achieved from both a regular 3He-Rubidium
(Rb) target and a hybrid target which contains a mixture of
Rb and potassium. The target polarization has been
determined within 3 % using both the Electron Paramagnetic
Resonance (EPR) technique and the NMR-AFP (Adiabatic Fast
Passage) technique. © 2007 Elsevier B.V. All rights
reserved.},
Doi = {10.1016/j.nima.2007.08.243},
Key = {fds246068}
}
@article{fds46660,
Author = {B. Clasie and C. Crawford and J. Seely and W. Xu and D. Dutta and H.
Gao},
Title = {A laser-driven target of high-density nuclear polarized
hydrogen gas},
Journal = {Phys. Rev. A (Rapid Communications)},
Volume = {73},
Pages = {020703R},
Year = {2006},
Key = {fds46660}
}
@article{fds246153,
Author = {Chen, W and Mibe, T and al, HGE},
Title = {A measurement of the differential cross section for the
reaction $\gamma n \rightarrow \pi^- p$ from
deuterium},
Journal = {Physical Review Letters},
Volume = {103},
Number = {1},
Pages = {012301},
Year = {2009},
ISSN = {0031-9007},
url = {http://www.ncbi.nlm.nih.gov/pubmed/19659138},
Abstract = {We report a measurement of the differential cross section
for the gamman-->pi- p process from the CLAS detector at
Jefferson Laboratory in Hall B for photon energies between
1.0 and 3.5 GeV and pion center-of-mass (c.m.) angles
(thetac.m.) between 50 degrees and 115 degrees. We confirm a
previous indication of a broad enhancement around a c.m.
energy ([sqrt]s) of 2.1 GeV at thetac.m.=90 degrees in the
scaled differential cross section s7dsigma/dt and a rapid
falloff in a center-of-mass energy region of about 400 MeV
following the enhancement. Our data show an angular
dependence of this enhancement as the suggested scaling
region is approached for thetac.m. from 70 degrees to 105
degrees.},
Doi = {10.1103/physrevlett.103.012301},
Key = {fds246153}
}
@article{fds246019,
Author = {Wang, Y and Fan, X and Wang, J and Gonzalez-Diaz, D and Chen, H and Chen,
J and Li, Y and Camsonne, A and Chen, JP and Gao, H and Meziane,
M},
Title = {A MRPC prototype for SOLID-TOF in JLab},
Journal = {Journal of Instrumentation},
Volume = {8},
Number = {3},
Pages = {P03003-P03003},
Publisher = {IOP Publishing},
Year = {2013},
Month = {March},
ISSN = {1748-0221},
url = {http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000316990700028&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=47d3190e77e5a3a53558812f597b0b92},
Abstract = {A prototype of Multi-gap Resistive Plate Chamber (MRPC) for
the future SoLID time of flight system at JLab has been
developed. The counter, trapezoidal in shape, is assembled
with the newly developed low-resistive Chinese glass. It has
10 × 0.25 mm gas gaps and 11 readout strips of different
lengths. The strip width is 2.5 cm with a strip-to-strip
interval of 3 mm. Preliminary tests performed with
cosmic-rays showed an efficiency higher than 95% and a time
resolution around 50 ps. Results under diffuse/uniform
irradiation performed at JLab with scattered high energy
electrons showed a time resolution of 70-80 ps and over-95%
efficiency up to an incoming flux of 15 kHz/cm2. These
performances meet the requirements of the new time of flight
system SoLID-TOF. © 2013 IOP Publishing Ltd and Sissa
Medialab srl.},
Doi = {10.1088/1748-0221/8/03/P03003},
Key = {fds246019}
}
@article{fds351000,
Author = {Ahmed, MW and Alarcon, R and Aleksandrova, A and Baeßler, S and Barron-Palos, L and Bartoszek, LM and Beck, DH and Behzadipour, M and Berkutov, I and Bessuille, J and Blatnik, M and Broering, M and Broussard, LJ and Busch, M and Carr, R and Cianciolo, V and Clayton, SM and Cooper, MD and Crawford, C and Currie, SA and Daurer, C and Dipert, R and Dow, K and Dutta, D and Efremenko, Y and Erickson, CB and Filippone, BW and Fomin, N and Gao, H and Golub, R and Gould, CR and Greene, G and Haase, DG and Hasell, D and Hawari, AI and Hayden, ME and Holley, A and Holt, RJ and Huffman, PR and Ihloff, E and Imam, SK and Ito, TM and Karcz, M and Kelsey,
J and Kendellen, DP and Kim, YJ and Korobkina, E and Korsch, W and Lamoreaux, SK and Leggett, E and Leung, KKH and Lipman, A and Liu, CY and Long, J and MacDonald, SWT and Makela, M and Matlashov, A and Maxwell,
JD and Mendenhall, M and Meyer, HO and Milner, RG and Mueller, PE and Nouri, N and O'Shaughnessy, CM and Osthelder, C and Peng, JC and Penttila, SI and Phan, NS and Plaster, B and Ramsey, JC and Rao, TM and Redwine, RP and Reid, A and Saftah, A and Seidel, GM and Silvera, I and Slutsky, S and Smith, E and Snow, WM and Sondheim, W and Sosothikul, S and Stanislaus, TDS and Sun, X and Swank, CM and Tang, Z and Dinani, RT and Tsentalovich, E and Vidal, C and Wei, W and White, CR and Williamson,
SE and Yang, L and Yao, W and Young, AR},
Title = {A new cryogenic apparatus to search for the neutron electric
dipole moment},
Journal = {Journal of Instrumentation},
Volume = {14},
Number = {11},
Pages = {11017},
Year = {2019},
Month = {January},
url = {http://dx.doi.org/10.1088/1748-0221/14/11/P11017},
Abstract = {A cryogenic apparatus is described that enables a new
experiment, nEDM@SNS, with a major improvement in
sensitivity compared to the existing limit in the search for
a neutron Electric Dipole Moment (EDM). This apparatus uses
superfluid 4He to produce a high density of Ultra-Cold
Neutrons (UCN) which are contained in a suitably coated pair
of measurement cells. The experiment, to be operated at the
Spallation Neutron Source at Oak Ridge National Laboratory,
uses polarized 3He from an Atomic Beam Source injected into
the superfluid 4He and transported to the measurement cells
where it serves as a co-magnetometer. The superfluid 4He is
also used as an insulating medium allowing significantly
higher electric fields, compared to previous experiments, to
be maintained across the measurement cells. These features
provide an ultimate statistical uncertainty for the EDM of
2-3× 10-28 e-cm, with anticipated systematic uncertainties
below this level.},
Doi = {10.1088/1748-0221/14/11/P11017},
Key = {fds351000}
}
@article{fds246098,
Author = {Wang, R and Gao, H and others},
Title = {A Practical Method to Determine the Spatial Resolution of
GEM Detector},
Journal = {Nucl. Inst. and Methods},
Volume = {701},
Pages = {54-57},
Publisher = {Elsevier BV},
Year = {2012},
ISSN = {0168-9002},
url = {http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000313721400008&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=47d3190e77e5a3a53558812f597b0b92},
Abstract = {A new method to determine the spatial resolution of a
one-dimensional gaseous electron multiplication (GEM)
prototype is demonstrated via an experimental test using an
Fe-55 source with an adjustable slit. In this method, the
total variance of the incident position σtot2, contributed
by the GEM spatial resolution and the geometrical acceptance
of the slit, is presented as a function of the event rate n
under the full energy peak, with the latter being employed
to calibrate the square of the slit width. Using a linear
fit to the experimental data, a spatial resolution of
σg=56±15μm(1σ) is measured. Compared to the existing
methods, the novel method presented here is robust
considering the inaccuracy in the direct measurements of the
slit widths, and hence greatly circumvents machining
difficulties.},
Doi = {10.1016/j.nima.2012.10.078},
Key = {fds246098}
}
@article{fds346975,
Author = {Xiong, W and Gasparian, A and Gao, H and Dutta, D and Khandaker, M and Liyanage, N and Pasyuk, E and Peng, C and Bai, X and Ye, L and Gnanvo, K and Gu, C and Levillain, M and Yan, X and Higinbotham, DW and Meziane, M and Ye, Z and Adhikari, K and Aljawrneh, B and Bhatt, H and Bhetuwal, D and Brock, J and Burkert, V and Carlin, C and Deur, A and Di, D and Dunne, J and Ekanayaka, P and El-Fassi, L and Emmich, B and Gan, L and Glamazdin, O and Kabir, ML and Karki, A and Keith, C and Kowalski, S and Lagerquist, V and Larin, I and Liu, T and Liyanage, A and Maxwell, J and Meekins, D and Nazeer, SJ and Nelyubin, V and Nguyen, H and Pedroni, R and Perdrisat,
C and Pierce, J and Punjabi, V and Shabestari, M and Shahinyan, A and Silwal, R and Stepanyan, S and Subedi, A and Tarasov, VV and Ton, N and Zhang, Y and Zhao, ZW},
Title = {A small proton charge radius from an electron-proton
scattering experiment.},
Journal = {Nature},
Volume = {575},
Number = {7781},
Pages = {147-150},
Year = {2019},
Month = {November},
url = {http://dx.doi.org/10.1038/s41586-019-1721-2},
Abstract = {Elastic electron-proton scattering (e-p) and the
spectroscopy of hydrogen atoms are the two methods
traditionally used to determine the proton charge radius,
r<sub>p</sub>. In 2010, a new method using muonic hydrogen
atoms<sup>1</sup> found a substantial discrepancy compared
with previous results<sup>2</sup>, which became known as the
'proton radius puzzle'. Despite experimental and theoretical
efforts, the puzzle remains unresolved. In fact, there is a
discrepancy between the two most recent spectroscopic
measurements conducted on ordinary hydrogen<sup>3,4</sup>.
Here we report on the proton charge radius experiment at
Jefferson Laboratory (PRad), a high-precision e-p experiment
that was established after the discrepancy was identified.
We used a magnetic-spectrometer-free method along with a
windowless hydrogen gas target, which overcame several
limitations of previous e-p experiments and enabled
measurements at very small forward-scattering angles. Our
result, r<sub>p</sub> = 0.831 ± 0.007<sub>stat</sub> ±
0.012<sub>syst</sub> femtometres, is smaller than the most
recent high-precision e-p measurement<sup>5</sup> and 2.7
standard deviations smaller than the average of all e-p
experimental results<sup>6</sup>. The smaller r<sub>p</sub>
we have now measured supports the value found by two
previous muonic hydrogen experiments<sup>1,7</sup>. In
addition, our finding agrees with the revised value
(announced in 2019) for the Rydberg constant<sup>8</sup>-one
of the most accurately evaluated fundamental constants in
physics.},
Doi = {10.1038/s41586-019-1721-2},
Key = {fds346975}
}
@article{fds246139,
Author = {H. Gao and Dutta, D and al, DVWE},
Title = {A Study of the (e,e’p) reaction on 12C, 56Fe and
197Au},
Journal = {Phys. Rev. C (Rapid Communications)},
Volume = {68},
Pages = {021001(R)},
Year = {2003},
Key = {fds246139}
}
@booklet{Oneill95,
Author = {O'Neill, TG and Lorenzon, W and Anthony, P and Arnold, RG and Arrington,
J and Beise, EJ and Belz, JE and Bosted, PE and Bulten, HJ and Chapman, MS and Coulter, KP and Dietrich, F and Ent, R and Epstein, M and Filippone, BW and Gao, H and Gearhart, RA and Geesaman, DF and Hansen, JO and Holt, RJ and Jackson, HE and Jones, CE and Keppel, CE and Kinney, ER and Kuhn, S and Lee, K and Lung, A and Makins, NCR and Margaziotis, DJ and McKeown, RD and Milner, RG and Mueller, B and Napolitano, J and Nelson, J and Papavassiliou, V and Petratos, GG and Potterveld, DH and Rock, SE and Spengos, M and Szalata, ZM and Tao, LH and van Bibber, K and van den
Brand, JFJ and White, JL and Zeidman, B},
Title = {A-dependence of nuclear transparency in quasielastic A(e,
ef'p) at high Q2},
Journal = {Physics Letters B},
Volume = {351},
Number = {1-3},
Pages = {87-92},
Publisher = {Elsevier BV},
Year = {1995},
Month = {May},
url = {http://dx.doi.org/10.1016/0370-2693(95)00362-O},
Abstract = {The A-dependence of the quasielastic A(e, ef'p) reaction has
been studied at SLAC with 2H, C, Fe, and Au nuclei at
momentum transfers Q2 = 1, 3, 5, and 6.8 (GeV/c)2. We
extract the nuclear transparency T(A, Q2), a measure of the
average probability that the struck proton escapes from the
nucleus A without interaction. Several calculations predict
a significant increase in T with momentum transfer, a
phenomenon known as Color Transparency. Within the
measurement uncertainty, no increase is seen for any of the
nuclei studied. © 1995.},
Doi = {10.1016/0370-2693(95)00362-O},
Key = {Oneill95}
}
@article{fds370091,
Author = {Baym, G and Aprahamian, A and Aidala, C and Braun-Munzinger, P and Gao,
H and Hafidi, K and Haxton, W and Jowett, J and McLerran, L and Merminga,
L and Meziani, Z-E and Milner, R and Schaefer, T and Sichtermann, E and Turner, M and Jacak, BV and Loeb, A and DiMauro, L and DiSalvo, FJ and Fisch, NJ and Fisher, D and Freedman, W and Heckman, T and Hill, WTIII and Hurd, AJ and Jones, B and Lankford, A and Page, LAJ and Ritz,
SM},
Title = {Accelerator Science, Technology, and Detectors Needed for a
US-Based Electron-Ion Collider},
Pages = {53-81},
Booktitle = {ASSESSMENT OF U.S.-BASED ELECTRON-ION COLLIDER
SCIENCE},
Year = {2018},
ISBN = {978-0-309-47856-4},
Key = {fds370091}
}
@article{fds356932,
Author = {Zhou, J and Khachatryan, V and Gao, H and Higinbotham, DW and Parker, A and Bai, X and Dutta, D and Gasparian, A and Gnanvo, K and Khandaker, M and Liyanage, N and Pasyuk, E and Peng, C and Xiong, W},
Title = {Advanced extraction of the deuteron charge radius from
electron-deuteron scattering data},
Journal = {Physical Review C},
Volume = {103},
Number = {2},
Year = {2021},
Month = {February},
url = {https://arxiv.org/abs/2010.09003},
Abstract = {To extract the charge radius of the proton, rp, from the
electron scattering data, the PRad collaboration at
Jefferson Lab has developed a rigorous framework for finding
the best functional forms - the fitters - for a robust
extraction of rp from a wide variety of sample functions for
the range and uncertainties of the PRad data. In this paper
we utilize and further develop this framework. Herein we
discuss methods for searching for the best fitter candidates
as well as a procedure for testing the robustness of
extraction of the deuteron charge radius, rd, from
parametrizations based on elastic electron-deuteron
scattering data. The ansatz proposed in this paper for the
robust extraction of rd, for the proposed low-Q2 DRad
experiment at Jefferson Lab, can be further improved once
there are more data.},
Doi = {10.1103/PhysRevC.103.024002},
Key = {fds356932}
}
@article{fds246103,
Author = {Chen, W and Gao, H and others},
Title = {Amplitude analysis of $\gamma n \rightarrow \pi^{-} p$ data
above 1 GeV},
Journal = {Phys. Rev. C},
Volume = {86},
Pages = {015206},
Year = {2012},
Key = {fds246103}
}
@article{fds246094,
Author = {Chen, W and Gao, H and Briscoe, WJ and Dutta, D and Kudryavtsev, AE and Mirazita, M and Paris, MW and Rossi, P and Stepanyan, S and Strakovsky,
II and Tarasov, VE and Workman, RL},
Title = {Amplitude analysis of γn→π-p data above 1
GeV},
Journal = {Physical Review C - Nuclear Physics},
Volume = {86},
Number = {1},
Publisher = {American Physical Society (APS)},
Year = {2012},
Month = {July},
ISSN = {0556-2813},
url = {http://dx.doi.org/10.1103/PhysRevC.86.015206},
Abstract = {We report an extraction of nucleon resonance couplings using
π- photoproduction cross sections on the neutron. The world
database for the process γn→π-p above 1 GeV has
quadrupled with the addition of differential cross sections
from the CEBAF Large Acceptance Spectrometer (CLAS) at
Jefferson Lab in Hall B. Differential cross sections from
CLAS have been improved with a final-state interaction
determination using a diagrammatic technique taking into
account the NN and πN final-state interaction amplitudes.
Resonance couplings have been extracted and compared to
previous determinations. With the addition of these cross
sections significant changes are seen in the high-energy
behavior of the Scattering Analysis Interactive Dial-in
program cross sections and amplitudes. © 2012 American
Physical Society.},
Doi = {10.1103/PhysRevC.86.015206},
Key = {fds246094}
}
@article{fds370089,
Author = {Baym, G and Aprahamian, A and Aidala, C and Braun-Munzinger, P and Gao,
H and Hafidi, K and Haxton, W and Jowett, J and McLerran, L and Merminga,
L and Meziani, Z-E and Milner, R and Schaefer, T and Sichtermann, E and Turner, M and Jacak, BV and Loeb, A and DiMauro, L and DiSalvo, FJ and Fisch, NJ and Fisher, D and Freedman, W and Heckman, T and Hill, WTIII and Hurd, AJ and Jones, B and Lankford, A and Page, LAJ and Ritz,
SM},
Title = {AN ASSESSMENT OF US-BASED ELECTRON-ION COLLIDER SCIENCE
Conclusions and Findings},
Pages = {119-124},
Booktitle = {ASSESSMENT OF U.S.-BASED ELECTRON-ION COLLIDER
SCIENCE},
Year = {2018},
ISBN = {978-0-309-47856-4},
Key = {fds370089}
}
@article{fds370090,
Author = {Baym, G and Aprahamian, A and Aidala, C and Braun-Munzinger, P and Gao,
H and Hafidi, K and Haxton, W and Jowett, J and McLerran, L and Merminga,
L and Meziani, Z-E and Milner, R and Schaefer, T and Sichtermann, E and Turner, M and Jacak, BV and Loeb, A and DiMauro, L and DiSalvo, FJ and Fisch, NJ and Fisher, D and Freedman, W and Heckman, T and Hill, WTIII and Hurd, AJ and Jones, B and Lankford, A and Page, LAJ and Ritz,
SM},
Title = {AN ASSESSMENT OF US-BASED ELECTRON-ION COLLIDER SCIENCE
Introduction},
Pages = {6-22},
Booktitle = {ASSESSMENT OF U.S.-BASED ELECTRON-ION COLLIDER
SCIENCE},
Year = {2018},
ISBN = {978-0-309-47856-4},
Key = {fds370090}
}
@article{fds370092,
Author = {Baym, G and Aprahamian, A and Aidala, C and Braun-Munzinger, P and Gao,
H and Hafidi, K and Haxton, W and Jowett, J and McLerran, L and Merminga,
L and Meziani, Z-E and Milner, R and Schaefer, T and Sichtermann, E and Turner, M and Jacak, BV and Loeb, A and DiMauro, L and DiSalvo, FJ and Fisch, NJ and Fisher, D and Freedman, W and Heckman, T and Hill, WTIII and Hurd, AJ and Jones, B and Lankford, A and Page, LAJ and Ritz,
SM},
Title = {AN ASSESSMENT OF US-BASED ELECTRON-ION COLLIDER SCIENCE
Preface},
Pages = {VII-+},
Booktitle = {ASSESSMENT OF U.S.-BASED ELECTRON-ION COLLIDER
SCIENCE},
Year = {2018},
ISBN = {978-0-309-47856-4},
Key = {fds370092}
}
@article{fds368409,
Author = {Baym, G and Aprahamian, A and Aidala, C and Braun-Munzinger, P and Gao,
H and Hafidi, K and Haxton, W and Jowett, J and McLerran, L and Merminga,
L and Meziani, Z-E and Milner, R and Schaefer, T and Sichtermann, E and Turner, M and Jacak, BV and Loeb, A and DiMauro, L and DiSalvo, FJ and Fisch, NJ and Fisher, D and Freedman, W and Heckman, T and Hill, WTIII and Hurd, AJ and Jones, B and Lankford, A and Page, LAJ and Ritz,
SM},
Title = {AN ASSESSMENT OF US-BASED ELECTRON-ION COLLIDER SCIENCE
Summary},
Pages = {1-5},
Booktitle = {ASSESSMENT OF U.S.-BASED ELECTRON-ION COLLIDER
SCIENCE},
Year = {2018},
ISBN = {978-0-309-47856-4},
Key = {fds368409}
}
@article{fds359030,
Author = {Accardi, A and Afanasev, A and Albayrak, I and Ali, SF and Amaryan, M and Annand, JRM and Arrington, J and Asaturyan, A and Atac, H and Avakian,
H and Averett, T and Gayoso, CA and Bai, X and Barion, L and Battaglieri,
M and Bellini, V and Beminiwattha, R and Benmokhtar, F and Berdnikov,
VV and Bernauer, JC and Bertone, V and Bianconi, A and Biselli, A and Bisio, P and Blunden, P and Boer, M and Bondì, M and Brinkmann, KT and Briscoe, WJ and Burkert, V and Cao, T and Camsonne, A and Capobianco, R and Cardman, L and Carmignotto, M and Caudron, M and Causse, L and Celentano, A and Chatagnon, P and Chen, JP and Chetry, T and Ciullo, G and Cline, E and Cole, PL and Contalbrigo, M and Costantini, G and D’Angelo, A and Darmé, L and Day, D and Defurne, M and De Napoli and M and Deur, A and De Vita and R and D’Hose, N and Diehl, S and Diefenthaler, M and Dongwi, B and Dupré, R and Dutrieux, H and Dutta, D and Ehrhart, M and El
Fassi, L and Elouadrhiri, L and Ent, R and Erler, J and Fernando, IP and Filippi, A and Flay, D and Forest, T and Fuchey, E and Fucini, S and Furletova, Y and Gao, H and Gaskell, D and Gasparian, A and Gautam, T and Girod, FX and Gnanvo, K and Grames, J and Grauvogel, GN and Gueye, P and Guidal, M and Habet, S and Hague, TJ and Hamilton, DJ and Hansen, O and Hasell, D and Hattawy, M and Higinbotham, DW and Hobart, A and Horn, T and Hyde, CE and Ibrahim, H and Ilyichev, A and Italiano, A and Joo, K and Joosten, SJ and Khachatryan, V and Kalantarians, N and Kalicy,
G},
Title = {An experimental program with high duty-cycle polarized and
unpolarized positron beams at Jefferson Lab},
Journal = {European Physical Journal A},
Volume = {57},
Number = {8},
Year = {2021},
Month = {August},
url = {http://dx.doi.org/10.1140/epja/s10050-021-00564-y},
Abstract = {Positron beams, both polarized and unpolarized, are
identified as important ingredients for the experimental
programs at the next generation of lepton accelerators. In
the context of the hadronic physics program at Jefferson Lab
(JLab), positron beams are complementary, even essential,
tools for a precise understanding of the electromagnetic
structure of nucleons and nuclei, in both the elastic and
deep-inelastic regimes. For instance, elastic scattering of
polarized and unpolarized electrons and positrons from the
nucleon enables a model independent determination of its
electromagnetic form factors. Also, the deeply-virtual
scattering of polarized and unpolarized electrons and
positrons allows unambiguous separation of the different
contributions to the cross section of the lepto-production
of photons and of lepton-pairs, enabling an accurate
determination of the nucleons and nuclei generalized parton
distributions, and providing an access to the gravitational
form factors of the energy-momentum tensor. Furthermore,
positron beams offer the possibility of alternative tests of
the Standard Model of particle physics through the search of
a dark photon, the precise measurement of electroweak
couplings, and the investigation of charged lepton flavor
violation. This document discusses the perspectives of an
experimental program with high duty-cycle positron beams at
JLab.},
Doi = {10.1140/epja/s10050-021-00564-y},
Key = {fds359030}
}
@article{fds355716,
Author = {Gao, H},
Title = {Antimatter in the proton is more down than
up.},
Journal = {Nature},
Volume = {590},
Number = {7847},
Pages = {559-560},
Year = {2021},
Month = {February},
url = {http://dx.doi.org/10.1038/d41586-021-00430-3},
Doi = {10.1038/d41586-021-00430-3},
Key = {fds355716}
}
@article{fds362668,
Author = {Sulkosky, V and Peng, C and Chen, JP and Deur, A and Abrahamyan, S and Aniol, KA and Armstrong, DS and Averett, T and Bailey, SL and Beck, A and Bertin, P and Butaru, F and Boeglin, W and Camsonne, A and Cates, GD and Chang, CC and Choi, S and Chudakov, E and Coman, L and Cornejo, JC and Craver, B and Cusanno, F and De Leo and R and de Jager, CW and Denton, JD and Dhamija, S and Feuerbach, R and Finn, JM and Frullani, S and Fuoti, K and Gao, H and Garibaldi, F and Gayou, O and Gilman, R and Glamazdin, A and Glashausser, C and Gomez, J and Hansen, JO and Hayes, D and Hersman, FW and Higinbotham, DW and Holmstrom, T and Humensky, TB and Hyde, CE and Ibrahim, H and Iodice, M and Jiang, X and Kaufman, LJ and Kelleher, A and Keister, KE and Kim, W and Kolarkar, A and Kolb, N and Korsch, W and Kramer, K and Kumbartzki, G and Lagamba, L and Lainé, V and Laveissiere, G and Lerose, JJ and Lhuillier, D and Lindgren, R and Liyanage, N and Lu, HJ and Ma, B and Margaziotis, DJ and Markowitz, P and McCormick, KR and Meziane, M and Meziani, ZE and Michaels, R and Moffit,
B and Monaghan, P and Nanda, S and Niedziela, J and Niskin, M and Pandolfi,
R and Paschke, KD and Potokar, M and Puckett, A and Punjabi, VA and Qiang,
Y and Ransome, RD and Reitz, B and Roché, R and Saha, A and Shabetai, A and Širca, S and Singh, JT and Slifer, K and Snyder, R and Solvignon, P and Stringer, R and Subedi, R and Tobias, WA and Ton, N and Ulmer, PE and Urciuoli, GM and Vacheret, A and Voutier, E},
Title = {Author Correction: Measurement of the generalized spin
polarizabilities of the neutron in the low-Q 2
region (Nature Physics, (2021), 17, 6, (687-692),
10.1038/s41567-021-01245-9)},
Journal = {Nature Physics},
Volume = {18},
Number = {4},
Pages = {473},
Year = {2022},
Month = {April},
url = {http://dx.doi.org/10.1038/s41567-022-01569-0},
Abstract = {In the version of this article initially published,
Stephanie L. Bailey’s name was listed as Stephen J.
Bailey. The author’s name has been corrected in the HTML
and PDF versions of the article.},
Doi = {10.1038/s41567-022-01569-0},
Key = {fds362668}
}
@article{fds315781,
Author = {Gao, GLEAIH and Howell, CR},
Title = {Backward Electroproduction of pi0 Mesons on Protons in the
Region of Nucleon Resonances at Four Momentum Transfer
Squared Q2 = 1.0 GeV2},
Journal = {Phy. Rev. C},
Volume = {69},
Number = {4},
Pages = {45203},
Publisher = {American Physical Society (APS)},
Year = {2004},
ISSN = {0556-2813},
url = {http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000221427500055&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=47d3190e77e5a3a53558812f597b0b92},
Abstract = {Exclusive electroproduction of π0 mesons on protons in the
backward hemisphere has been studied at Q2 = 1.0 GeV2 by
detecting protons in the forward direction in coincidence
with scattered electrons from the 4 GeV electron beam in
Jefferson Lab's Hall A. The data span the range of the total
(γ*p) center-of-mass energy W from the pion production
threshold to W=2.0 GeV. The differential cross sections σT+
εσL, σTL, and σTT were separated from the azimuthal
distribution and are presented together with the MAID and
SAID parametrizations.},
Doi = {10.1103/PhysRevC.69.045203},
Key = {fds315781}
}
@article{fds246052,
Author = {al, JAE},
Title = {Basic Instrumentation for Hall A at Jefferson
Lab},
Journal = {Nucl. Instrum. & Meth.},
Volume = {A522},
Number = {3},
Pages = {294},
Publisher = {Elsevier BV},
Year = {2004},
ISSN = {0168-9002},
url = {http://dx.doi.org/10.1016/j.nima.2003.11.415},
Abstract = {The instrumentation in Hall A at the Thomas Jefferson
National Accelerator Facility was designed to study electro-
and photo-induced reactions at very high luminosity and good
momentum and angular resolution for at least one of the
reaction products. The central components of Hall A are two
identical high resolution spectrometers, which allow the
vertical drift chambers in the focal plane to provide a
momentum resolution of better than 2×10-4. A variety of
Cherenkov counters, scintillators and lead-glass
calorimeters provide excellent particle identification. The
facility has been operated successfully at a luminosity well
in excess of 1038 cm-2 s-1. The research program is aimed at
a variety of subjects, including nucleon structure
functions, nucleon form factors and properties of the
nuclear medium. © 2003 Elsevier B.V. All rights
reserved.},
Doi = {10.1016/j.nima.2003.11.415},
Key = {fds246052}
}
@article{fds246189,
Author = {H. Gao and Ackerstaff, K and Airapetian, A and Akopov, N and Amarian, M and Aschenauer, EC and Avakian, H and Avakian, R and Avetissian, A and Bains, B and Baumgarten, C and Beckmann, M and Belostotski, S and Belz,
JE and Benisch, T and Bernreuther, S and Bianchi, N and Blouw, J and Böttcher, H and Borissov, A and Brack, J and Brauksiepe, S and Braun,
B and Bray, B and Brons, S and Brückner, W and Brüll, A and Bruins, EEW and Bulten, HJ and Cadman, RV and Capitani, GP and Carter, P and Chumney, P and Cisbani, E and Court, GR and Dalpiaz, PF and de Sanctis, E and de
Schepper, D and Devitsin, E and de Witt Huberts and PKA and di Nezza, P and Düren, M and Dvoredsky, A and Elbakian, G and Fantoni, A and Fechtchenko, A and Ferstl, M and Fick, D and Fiedler, K and Filippone,
BW and Fischer, H and Fox, B and Franz, J and Frabetti, S and Frullani, S and Funk, MA and Gagunashvili, ND and Gao, H and Gärber, Y and Garibaldi,
F and Gavrilov, G and Geiger, P and Gharibyan, V and Giordjian, V and Golendukhin, A and Graw, G and Grebeniouk, O and Green, PW and Greeniaus, LG and Grosshauser, C and Gute, A and Haeberli, W and Hansen,
JO and Hasch, D and Häusser, O and Henderson, R and Henkes, T and Henoch,
M and Hertenberger, R and Holler, Y and Holt, RJ and Hoprich, W and Ihssen,
H and Iodice, M and Izotov, A and Jackson, HE and Jgoun, A and Kaiser, R and Kinney, E and Kisselev, A and Kitching, P and Kobayashi, H and Koch, N and Königsmann, K and Kolstein, M and Kolster, H and Korotkov, V and Korsch, W and Kozlov, V and Kramer, LH and Krivokhijine,
VG},
Title = {Beam-Induced Nuclear Depolarization in a Gaseous
Polarized-Hydrogen Target},
Journal = {Physical Review Letters},
Volume = {82},
Number = {6},
Pages = {1164-1168},
Publisher = {American Physical Society (APS)},
Year = {1999},
Month = {February},
ISSN = {0031-9007},
url = {http://dx.doi.org/10.1103/PhysRevLett.82.1164},
Doi = {10.1103/PhysRevLett.82.1164},
Key = {fds246189}
}
@article{fds246100,
Author = {Gao, JHEAIH},
Title = {Beam-Target Double Spin Asymmetry $A_{LT}$ in Charged Pion
Production from Deep Inelastic Scattering on a Transversely
Polarized $^3$He Target at 1.4},
Journal = {Phys. Rev. Lett.},
Volume = {108},
Number = {5},
Pages = {052001},
Year = {2012},
ISSN = {0031-9007},
url = {http://hdl.handle.net/10161/5720 Duke open
access},
Abstract = {We report the first measurement of the double-spin asymmetry
A{LT} for charged pion electroproduction in semi-inclusive
deep-inelastic electron scattering on a transversely
polarized {3}He target. The kinematics focused on the
valence quark region, 0.16<x<0.35 with 1.4<Q{2}<2.7 GeV{2}.
The corresponding neutron A{LT} asymmetries were extracted
from the measured {3}He asymmetries and proton over {3}He
cross section ratios using the effective polarization
approximation. These new data probe the transverse momentum
dependent parton distribution function g{1T}{q} and
therefore provide access to quark spin-orbit correlations.
Our results indicate a positive azimuthal asymmetry for
π{-} production on {3}He and the neutron, while our π{+}
asymmetries are consistent with zero.},
Doi = {10.1103/physrevlett.108.052001},
Key = {fds246100}
}
@article{fds246160,
Author = {Geis, E and Kohl, M and Ziskin, V and Akdogan, T and Arenhövel, H and Alarcon, R and Bertozzi, W and Booth, E and Botto, T and Calarco, J and Clasie, B and Crawford, CB and DeGrush, A and Donnelly, TW and Dow, K and Farkhondeh, M and Fatemi, R and Filoti, O and Franklin, W and Gao, H and Gilad, S and Hasell, D and Karpius, P and Kolster, H and Lee, T and Maschinot, A and Matthews, J and McIlhany, K and Meitanis, N and Milner,
RG and Rapaport, J and Redwine, RP and Seely, J and Shinozaki, A and Sirca,
S and Sindile, A and Six, E and Smith, T and Steadman, M and Tonguc, B and Tschalaer, C and Tsentalovich, E and Turchinetz, W and Xiao, Y and Xu,
W and Zhang, C and Zhou, Z and Zwart, T and BLAST Collaboration},
Title = {Charge form factor of the neutron at low momentum transfer
from the 2H-->(e-->,e'n)1H reaction.},
Journal = {Physical review letters},
Volume = {101},
Number = {4},
Pages = {042501},
Year = {2008},
Month = {July},
ISSN = {0031-9007},
url = {http://dx.doi.org/10.1103/physrevlett.101.042501},
Abstract = {We report new measurements of the neutron charge form factor
at low momentum transfer using quasielastic
electrodisintegration of the deuteron. Longitudinally
polarized electrons at an energy of 850 MeV were scattered
from an isotopically pure, highly polarized deuterium gas
target. The scattered electrons and coincident neutrons were
measured by the Bates Large Acceptance Spectrometer Toroid
(BLAST) detector. The neutron form factor ratio GEn/GMn was
extracted from the beam-target vector asymmetry AedV at
four-momentum transfers Q2=0.14, 0.20, 0.29, and 0.42
(GeV/c)2.},
Doi = {10.1103/physrevlett.101.042501},
Key = {fds246160}
}
@article{fds246072,
Author = {Chen, W and Gao, H},
Title = {Charged pion photoproduction},
Journal = {AIP Conference Proceedings},
Volume = {1182},
Pages = {851-854},
Publisher = {AIP},
Year = {2009},
Month = {December},
ISSN = {0094-243X},
url = {http://dx.doi.org/10.1063/1.3293942},
Abstract = {We extracted the differential cross section for the γn →
π- p process from a deuterium target using the CLAS
detector at Jefferson Lab in Hall B for photon energies
between 1.0 and 3.5 GeV and pion center-of-mass (c.m.)
angles (θc.m.) between 50° and 115°. We confirm a
previous indication of a broad enhancement around a cm.
energy (√s) of 2.1 GeV at θc.m. =90° in the scaled
differential cross section, s7 σ/dt and a rapid fall-off in
a center-of-mass energy region of about 400 MeV following
the enhancement. Our data show an angular dependence of this
enhancement as the suggested scaling region is approached
for θc.m. from 70° to 105°. © 2009 American Institute of
Physics.},
Doi = {10.1063/1.3293942},
Key = {fds246072}
}
@article{fds246045,
Author = {Gao, H},
Title = {Charged pion photoproduction from hydrogen and deuterium at
Jefferson Lab},
Journal = {Modern Physics Letters A},
Volume = {18},
Number = {2-6},
Pages = {215-224},
Publisher = {World Scientific Pub Co Pte Lt},
Year = {2003},
Month = {February},
url = {http://dx.doi.org/10.1142/S0217732303010260},
Abstract = {The γn → π-p and γp → π+n reactions are essential
probes of the transition from meson-nucleon degrees of
freedom to quark-gluon degrees of freedom in exclusive
processes. The cross sections of these processes are also
advantageous, for the investigation of oscillatory behavior
around the quark counting prediction, since they decrease
relatively slower with energy compared with other
photon-induced processes. Moreover, these photoreactions in
nuclei can probe the QCD nuclear filtering and color
transparency effects. In this talk, I discuss the
preliminary results on the γp → π+n and γn → π-p
processes at a center-of-mass angle of 90° from Jefferson
Lab experiment E94-104. I also discuss a new experiment in
which singles γn → π-p measurement from hydrogen, and
coincidence γn → π-p measurements at the quasifree
kinematics from deuterium and 12C for photon energies
between 2.25 GeV to 5.8 GeV in fine steps at a
center-of-mass angle of 90° are planned. The proposed
measurement will allow a detailed investigation of the
oscillatory scaling behavior in photopion production
processes and the study of the nuclear dependence of rather
mysterious oscillations with energy that previous
experiments have indicated. The various nuclear and
perturbative QCD approaches, ranging from Glauber theory, to
quark-counting, to Sudakov-corrected independent scattering,
make dramatically different predictions for the experimental
outcomes.},
Doi = {10.1142/S0217732303010260},
Key = {fds246045}
}
@article{fds346398,
Author = {Gao, H},
Title = {Closing remarks at spin 2018 symposium},
Journal = {Proceedings of Science},
Volume = {346},
Year = {2018},
Month = {January},
Abstract = {In this closing talk, I offer some personal reflection in
the context of spin symposia on its global nature, its
impact and also on the diverse spin related topics in
various sub-fields of physics from some of the most recent
symposia. Since the last Spin Symposium in 2016, there have
been major developments worldwide on electron-ion colliders,
which I also discuss briefly. Finally it is my pleasure to
unveil where the next Spin Physics Symposium (Spin 2020)
will take place.},
Key = {fds346398}
}
@article{fds246124,
Author = {Mibe, T and Gao, H and al, E},
Title = {Coherent Phi-meson Photoproduction on Deuteron at Low
Energies},
Journal = {Physical Review C (Rapid Communications)},
Volume = {76},
Pages = {052202R},
Year = {2007},
Key = {fds246124}
}
@article{fds246144,
Author = {H. Gao and al, DGME},
Title = {Coherent pi0 photoproduction on the deuteron upto 4
GeV},
Journal = {Phys. Rev. C},
Volume = {60},
Number = {5},
Pages = {052201},
Year = {1999},
Abstract = {The differential cross section for 2H(γ,d)π0 has been
measured at deuteron center-of-mass angles of 90° and
136°. This work reports the first data for this reaction
above a photon energy of 1 GeV, and permits a test of the
apparent constituent counting rule and reduced nuclear
amplitude behavior as observed in elastic ed scattering.
Measurements were performed up to a photon energy of 4.0
GeV, and are in good agreement with previous lower energy
measurements. Overall, the data are inconsistent with both
constituent-counting rule and reduced nuclear amplitude
predictions.},
Key = {fds246144}
}
@article{fds337294,
Author = {Meekins, DG and Abbott, DJ and Ahmidouch, A and Armstrong, CS and Arrington, J and Assamagan, KA and Baker, OK and Barrow, SP and Beatty,
DP and Beck, DH and Beedoe, SY and Beise, EJ and Belz, JE and Bochna, C and Bosted, PE and Brash, EJ and Breuer, H and Cadman, RV and Cardman, L and Carlini, RD and Cha, J and Chant, NS and Collins, G and Cothran, C and Cummings, WJ and Danagoulian, S and Duncan, FA and Dunne, JA and Dutta,
D and Eden, T and Ent, R and Filippone, BW and Forest, TA and Fortune, HT and Frolov, VV and Gao, H and Geesaman, DF and Gilman, R and Gueye, PLJ and Gustafsson, KK and Hansen, JO and Harvey, M and Hinton, W and Holt, RJ and Jackson, HE and Keppel, CE and Khandaker, MA and Kinney, ER and Klein,
A and Koltenuk, DM and Kumbartzki, G and Lung, AF and Mack, DJ and Madey,
R and Markowitz, P and McFarlane, KW and McKeown, RD and Meziani, ZE and Miller, MA and Mitchell, JH and Mkrtchyan, HG and Mohring, RM and Napolitano, J and Nathan, AM and Niculescu, G and Niculescu, I and O’Neill, TG and Owen, BR and Pate, SF and Potterveld, DH and Price,
JW and Rakness, GL and Ransome, RD and Reinhold, J and Rutt, PM and Salgado, CW and Savage, G and Segel, RE and Simicevic, N and Stoler, P and Suleiman, R and Tang, L and Terburg, BP and van Westrum, D and Vulcan,
WF and Williamson, SE and Witkowski, MT and Wood, SA and Yan, C and Zeidman, B},
Title = {Coherent [Formula Presented] photoproduction on the deuteron
up to 4 GeV},
Journal = {Physical Review C - Nuclear Physics},
Volume = {60},
Number = {5},
Pages = {4},
Publisher = {American Physical Society (APS)},
Year = {1999},
Month = {January},
url = {http://dx.doi.org/10.1103/PhysRevC.60.052201},
Abstract = {The differential cross section for [Formula Presented] has
been measured at deuteron center-of-mass angles of 90° and
136°. This work reports the first data for this reaction
above a photon energy of 1 GeV, and permits a test of the
apparent constituent counting rule and reduced nuclear
amplitude behavior as observed in elastic ed scattering.
Measurements were performed up to a photon energy of 4.0
GeV, and are in good agreement with previous lower energy
measurements. Overall, the data are inconsistent with both
constituent-counting rule and reduced nuclear amplitude
predictions. © 1999 The American Physical
Society.},
Doi = {10.1103/PhysRevC.60.052201},
Key = {fds337294}
}
@article{fds304543,
Author = {Meekins, DG and Abbott, DJ and Ahmidouch, A and Armstrong, CS and Arrington, J and Assamagan, KA and Baker, OK and Barrow, SP and Beatty,
DP and Beck, DH and Beedoe, SY and Beise, EJ and Belz, JE and Bochna, C and Bosted, PE and Brash, EJ and Breuer, H and Cadman, RV and Cardman, L and Carlini, RD and Cha, J and Chant, NS and Collins, G and Cothran, C and Cummings, WJ and Danagoulian, S and Duncan, FA and Dunne, JA and Dutta,
D and Eden, T and Ent, R and Filippone, BW and Forest, TA and Fortune, HT and Frolov, VV and Gao, H and Geesaman, DF and Gilman, R and Gueye, PLJ and Gustafsson, KK and Hansen, JO and Harvey, M and Hinton, W and Holt, RJ and Jackson, HE and Keppel, CE and Khandaker, MA and Kinney, ER and Klein,
A and Koltenuk, DM and Kumbartzki, G and Lung, AF and Mack, DJ and Madey,
R and Markowitz, P and McFarlane, KW and McKeown, RD and Meziani, ZE and Miller, MA and Mitchell, JH and Mkrtchyan, HG and Mohring, RM and Napolitano, J and Nathan, AM and Niculescu, G and Niculescu, I and O'Neill, TG and Owen, BR and Pate, SF and Potterveld, DH and Price, JW and Rakness, GL and Ransome, RD and Reinhold, J and Rutt, PM and Salgado,
CW and Savage, G and Segel, RE and Simicevic, N and Stoler, P and Suleiman,
R and Tang, L and Terburg, BP and Van Westrum and D and Vulcan, WF and Williamson, SE and Witkowski, MT and Wood, SA and Yan, C and Zeidman,
B},
Title = {Coherent π0 photoproduction on the deuteron up
to 4 GeV},
Journal = {Physical Review C - Nuclear Physics},
Volume = {60},
Number = {5},
Pages = {522011-522014},
Year = {1999},
Month = {January},
url = {http://dx.doi.org/10.1103/PhysRevC.60.052201},
Abstract = {The differential cross section for 2H(γ,d)π0 has been
measured at deuteron center-of-mass angles of 90° and
136°. This work reports the first data for this reaction
above a photon energy of 1 GeV, and permits a test of the
apparent constituent counting rule and reduced nuclear
amplitude behavior as observed in elastic ed scattering.
Measurements were performed up to a photon energy of 4.0
GeV, and are in good agreement with previous lower energy
measurements. Overall, the data are inconsistent with both
constituent-counting rule and reduced nuclear amplitude
predictions.},
Doi = {10.1103/PhysRevC.60.052201},
Key = {fds304543}
}
@article{fds368411,
Author = {Baym, G and Aprahamian, A and Aidala, C and Braun-Munzinger, P and Gao,
H and Hafidi, K and Haxton, W and Jowett, J and McLerran, L and Merminga,
L and Meziani, Z-E and Milner, R and Schaefer, T and Sichtermann, E and Turner, M and Jacak, BV and Loeb, A and DiMauro, L and DiSalvo, FJ and Fisch, NJ and Fisher, D and Freedman, W and Heckman, T and Hill, WTIII and Hurd, AJ and Jones, B and Lankford, A and Page, LAJ and Ritz,
SM},
Title = {Comparison of a US-Based Electron-Ion Collider to Current
and Future Facilities},
Pages = {82-104},
Booktitle = {ASSESSMENT OF U.S.-BASED ELECTRON-ION COLLIDER
SCIENCE},
Year = {2018},
ISBN = {978-0-309-47856-4},
Key = {fds368411}
}
@article{fds246123,
Author = {H. Gao and al, ADE},
Title = {Compton Scattering Cross Section on the Proton at High
Momentum Transfer},
Journal = {Phys. Rev. Letts.},
Volume = {98},
Number = {15},
Pages = {152001},
Year = {2007},
ISSN = {0031-9007},
url = {http://dx.doi.org/10.1103/physrevlett.98.152001},
Abstract = {Cross-section values for Compton scattering on the proton
were measured at 25 kinematic settings over the range s=5-11
and -t=2-7 GeV2 with a statistical accuracy of a few
percent. The scaling power for the s dependence of the cross
section at fixed center-of-mass angle was found to be
8.0+/-0.2, strongly inconsistent with the prediction of
perturbative QCD. The observed cross-section values are in
fair agreement with the calculations using the handbag
mechanism, in which the external photons couple to a single
quark.},
Doi = {10.1103/physrevlett.98.152001},
Key = {fds246123}
}
@article{fds330707,
Author = {Sikora, MH and Ahmed, MW and Banu, A and Bartram, C and Crowe, B and Downie, EJ and Feldman, G and Gao, H and Grießhammer, HW and Hao, H and Howell, CR and Karwowski, HJ and Kendellen, DP and Kovash, MA and Li, X and Markoff, DM and Mikhailov, S and Popov, V and Pywell, RE and Silano, JA and Spraker, MC and Wallace, P and Weller, HR and Whisnant, CS and Wu, YK and Xiong, W and Yan, X and Zhao, ZW},
Title = {Compton scattering from 4He at 61 MeV},
Journal = {PRC},
Volume = {96},
Number = {5},
Pages = {055209-055209},
Publisher = {American Physical Society},
Year = {2017},
Month = {November},
url = {http://dx.doi.org/10.1103/PhysRevC.96.055209},
Abstract = {Differential cross sections for elastic Compton scattering
from He4 have been measured with high statistical precision
at the High Intensity γ-ray Source at laboratory scattering
angles of 55°, 90°, and 125° using a quasi-monoenergetic
photon beam with a weighted mean energy value of 81.3 MeV.
The results are compared to previous measurements and
similar fore-aft asymmetry in the angular distribution of
the differential cross sections is observed. This
experimental work is expected to strongly motivate the
development of effective-field-theory calculations of
Compton scattering from He4 to fully interpret the
data.},
Doi = {10.1103/PhysRevC.96.055209},
Key = {fds330707}
}
@article{fds360276,
Author = {Li, X and Ahmed, MW and Banu, A and Bartram, C and Crowe, B and Downie, EJ and Emamian, M and Feldman, G and Gao, H and Godagama, D and Grießhammer,
HW and Howell, CR and Karwowski, HJ and Kendellen, DP and Kovash, MA and Leung, KKH and Markoff, D and Mikhailov, S and Pywell, RE and Sikora,
MH and Silano, JA and Sosa, RS and Spraker, MC and Swift, G and Wallace, P and Weller, HR and Whisnant, CS and Wu, YK and Zhao, ZW},
Title = {Compton scattering from 4He at the TUNL HIγS
facility},
Journal = {PRC},
Volume = {101},
Number = {3},
Pages = {034618-034618},
Publisher = {American Physical Society},
Year = {2020},
Month = {March},
url = {http://dx.doi.org/10.1103/PhysRevC.101.034618},
Doi = {10.1103/PhysRevC.101.034618},
Key = {fds360276}
}
@article{fds331384,
Author = {Gao, H},
Title = {Compton scattering from a high pressure polarized He-3
target at HI gamma S},
Journal = {CZECHOSLOVAK JOURNAL OF PHYSICS},
Volume = {56},
Pages = {C323-C328},
Publisher = {INST PHYSICS ACAD SCI CZECH REPUBLIC},
Year = {2006},
Month = {January},
Key = {fds331384}
}
@article{fds304557,
Author = {al, LYZE},
Title = {Cross section Measurements of Charged Pion Photoproduction
in hydrogen and deuterium from 1.1 to 5.5
GeV},
Journal = {Phys Rev. C},
Volume = {71},
Number = {4},
Pages = {044603},
Publisher = {American Physical Society (APS)},
Year = {2005},
ISSN = {0556-2813},
url = {http://dx.doi.org/10.1103/PhysRevC.71.044603},
Abstract = {The differential cross sections for the γn → π-p and the
γp → π+n processes were measured at Jefferson Lab. The
photon energies ranged from 1.1 to 5.5 GeV, corresponding to
center-of-mass energies from 1.7 to 3.4 GeV. The pion
center-of-mass angles varied from 50° to 110°. The π- and
π+ photoproduction data both exhibit a global scaling
behavior at high energies and high transverse momenta,
consistent with the constituent counting rule prediction and
the existing π+ data. The data suggest possible
substructure of the scaling behavior, which might be
oscillations around the scaling value. The data show an
enhancement in the scaled cross section at center-of-mass
energy near 2.2 GeV The differential cross section ratios
[dσ/dt(γn → π-p)/dσ/dt(γp → π+n)] at high energies
and high transverse momenta can be described by calculations
based on one-hard-gluon-exchange diagrams. ©2005 The
American Physical Society.},
Doi = {10.1103/PhysRevC.71.044603},
Key = {fds304557}
}
@article{fds246141,
Author = {H. Gao and Gao, LYZEAIH},
Title = {Cross Section Measurements of Charged Pion Photoproduction
in Hydrogen},
Journal = {Physical Review C},
Volume = {71},
Number = {4},
Pages = {044603},
Year = {2005},
ISSN = {0556-2813},
url = {http://dx.doi.org/10.1103/PhysRevC.71.044603},
Abstract = {The differential cross sections for the γn → π
-p and the γp → π +n processes were measured
at Jefferson Lab. The photon energies ranged from 1.1 to 5.5
GeV, corresponding to center-of-mass energies from 1.7 to
3.4 GeV. The pion center-of-mass angles varied from 50°
to 110°. The π - and π + photoproduction data
both exhibit a global scaling behavior at high energies and
high transverse momenta, consistent with the constituent
counting rule prediction and the existing π + data. The
data suggest possible substructure of the scaling behavior,
which might be oscillations around the scaling value. The
data show an enhancement in the scaled cross section at
center-of-mass energy near 2.2 GeV The differential cross
section ratios [dσ/dt(γn → π
-p)/dσ/dt(γp → π +n)] at high energies and
high transverse momenta can be described by calculations
based on one-hard-gluon-exchange diagrams. ©2005 The
American Physical Society.},
Doi = {10.1103/PhysRevC.71.044603},
Key = {fds246141}
}
@article{fds246202,
Author = {H. Gao and al, LYZE},
Title = {Cross-section measurement of charged-pion photoproduction
from hydrogen and deuterium},
Journal = {Phys. Rev. Lett.},
Volume = {91},
Number = {2},
Pages = {022003},
Year = {2003},
url = {http://dx.doi.org/10.1103/physrevlett.91.022003},
Abstract = {We have measured the differential cross section for the
gamman-->pi(-)p and gammap-->pi(+)n reactions at
theta(c.m.)=90 degrees in the photon energy range from 1.1
to 5.5 GeV at Jefferson Lab (JLab). The data at E(gamma)
greater, similar 3.3 GeV exhibit a global scaling behavior
for both pi(-) and pi(+) photoproduction, consistent with
the constituent counting rule and the existing pi(+)
photoproduction data. Possible oscillations around the
scaling value are suggested by these new data. The data show
enhancement in the scaled cross section at a center-of-mass
energy near 2.2 GeV. The cross section ratio of exclusive
pi(-) to pi(+) photoproduction at high energy is consistent
with the prediction based on one-hard-gluon-exchange
diagrams.},
Doi = {10.1103/physrevlett.91.022003},
Key = {fds246202}
}
@article{fds246171,
Author = {H. Gao and Ackerstaff, K and Airapetian, A and Akopov, N and Akushevich, I and Amarian, M and Aschenauer, EC and Avakian, H and Avakian, R and Avetissian, A and Bains, B and Barrow, S and Baumgarten, C and Beckmann,
M and Belostotski, S and Belz, JE and Benisch, T and Bernreuther, S and Bianchi, N and Blanchard, S and Blouw, J and Böttcher, H and Borissov,
A and Brack, J and Brauksiepe, S and Braun, B and Bray, B and Brons, S and Brückner, W and Brüll, A and Bruins, EEW and Bulten, HJ and Cadman, R and Capitani, GP and Carter, P and Chumney, P and Cisbani, E and Court, GR and Dal Piaz and PF and Delheij, PPJ and de Sanctis, E and de Schepper, D and Devitsin, E and de Witt Huberts and PKA and di Nezza, P and Düren, M and Dvoredsky, A and Elbakian, G and Ely, J and Emerson, J and Fantoni, A and Fechtchenko, A and Ferstl, M and Fick, D and Fiedler, K and Filippone,
BW and Fischer, H and Fortune, HT and Fox, B and Frabetti, S and Franz, J and Frullani, S and Funk, MA and Gagunashvili, ND and Galumian, P and Gao,
H and Gärber, Y and Garibaldi, F and Gavrilov, G and Geiger, P and Gharibyan, V and Gyurjyan, V and Golendoukhin, A and Graw, G and Grebeniouk, O and Green, PW and Greeniaus, LG and Grosshauser, C and Guidal, MG and Gute, A and Haas, JP and Haeberli, W and Hansen, JO and Hasch, D and Häusser, O and Heinsius, FH and Henderson, R and Henkes,
T and Henoch, M and Hertenberger, R and Holler, Y and Holt, RJ and Hoprich,
W and Ihssen, H and Iodice, M and Izotov, A and Jackson, HE and Jgoun, A and Jones, C and Kaiser, R},
Title = {Determination of the deep inelastic contribution to the
generalised Gerasimov-Drell-Hearn integral for the proton
and neutron},
Journal = {Physics Letters, Section B: Nuclear, Elementary Particle and
High-Energy Physics},
Volume = {444},
Number = {3-4},
Pages = {531-538},
Publisher = {Elsevier BV},
Year = {1998},
Month = {December},
ISSN = {0370-2693},
url = {http://dx.doi.org/10.1016/S0370-2693(98)01396-3},
Abstract = {The virtual photon absorption cross section differences
[σ1/2 - σ3/2] for the proton and neutron have been
determined from measurements of polarised cross section
asymmetries in deep inelastic scattering of 27.5 GeV
longitudinally polarised positrons from polarised 1H and 3He
internal gas targets. The data were collected in the region
above the nucleon resonances in the kinematic range v< 23.5
GeV and 0.8 GeV2 < Q2 < 12 GeV2. For the proton the
contribution to the generalised Gerasimov-Drell-Hearn
integral was found to be substantial and must be included
for an accurate determination of the full integral.
Furthermore the data are consistent with a QCD
next-to-leading order fit based on previous deep inelastic
scattering data. Therefore higher twist effects do not
appear significant. © 1998 Elsevier Science B.V. All rights
reserved.},
Doi = {10.1016/S0370-2693(98)01396-3},
Key = {fds246171}
}
@article{fds370088,
Author = {Duran, B and Meziani, Z-E and Joosten, S and Jones, MK and Prasad, S and Peng, C and Armstrong, W and Atac, H and Chudakov, E and Bhatt, H and Bhetuwal, D and Boer, M and Camsonne, A and Chen, J-P and Dalton, MM and Deokar, N and Diefenthaler, M and Dunne, J and El Fassi and L and Fuchey,
E and Gao, H and Gaskell, D and Hansen, O and Hauenstein, F and Higinbotham, D and Jia, S and Karki, A and Keppel, C and King, P and Ko,
HS and Li, X and Li, R and Mack, D and Malace, S and McCaughan, M and McClellan, RE and Michaels, R and Meekins, D and Paolone, M and Pentchev, L and Pooser, E and Puckett, A and Radloff, R and Rehfuss, M and Reimer, PE and Riordan, S and Sawatzky, B and Smith, A and Sparveris, N and Szumila-Vance, H and Wood, S and Xie, J and Ye, Z and Yero, C and Zhao,
Z},
Title = {Determining the gluonic gravitational form factors of the
proton.},
Journal = {Nature},
Volume = {615},
Number = {7954},
Pages = {813-816},
Year = {2023},
Month = {March},
url = {http://dx.doi.org/10.1038/s41586-023-05730-4},
Abstract = {The proton is one of the main building blocks of all visible
matter in the Universe<sup>1</sup>. Among its intrinsic
properties are its electric charge, mass and
spin<sup>2</sup>. These properties emerge from the complex
dynamics of its fundamental constituents-quarks and
gluons-described by the theory of quantum
chromodynamics<sup>3-5</sup>. The electric charge and spin
of protons, which are shared among the quarks, have been
investigated previously using electron scattering<sup>2</sup>.
An example is the highly precise measurement of the electric
charge radius of the proton<sup>6</sup>. By contrast, little
is known about the inner mass density of the proton, which
is dominated by the energy carried by gluons. Gluons are
hard to access using electron scattering because they do not
carry an electromagnetic charge. Here we investigated the
gravitational density of gluons using a small colour dipole,
through the threshold photoproduction of the J/ψ particle.
We determined the gluonic gravitational form factors of the
proton<sup>7,8</sup> from our measurement. We used a
variety of models<sup>9-11</sup> and determined, in all
cases, a mass radius that is notably smaller than the
electric charge radius. In some, but not all cases,
depending on the model, the determined radius agrees well
with first-principle predictions from lattice quantum
chromodynamics<sup>12</sup>. This work paves the way for a
deeper understanding of the salient role of gluons in
providing gravitational mass to visible matter.},
Doi = {10.1038/s41586-023-05730-4},
Key = {fds370088}
}
@article{fds333213,
Author = {Zhao, YX and Allada, K and Aniol, K and Annand, JRM and Averett, T and Benmokhtar, F and Bertozzi, W and Bradshaw, PC and Bosted, P and Camsonne, A and Canan, M and Cates, GD and Chen, C and Chen, JP and Chen,
W and Chirapatpimol, K and Chudakov, E and Cisbani, E and Cornejo, JC and Cusanno, F and Dalton, M and Deconinck, W and De Jager and CW and De Leo,
R and Deng, X and Deur, A and Ding, H and Dolph, PAM and Dutta, C and Dutta,
D and El Fassi and L and Frullani, S and Gao, H and Garibaldi, F and Gaskell,
D and Gilad, S and Gilman, R and Glamazdin, O and Golge, S and Guo, L and Hamilton, D and Hansen, O and Higinbotham, DW and Holmstrom, T and Huang, J and Huang, M and Ibrahim, HF and Iodice, M and Jiang, X and Jin,
G and Jones, MK and Katich, J and Kelleher, A and Kim, W and Kolarkar, A and Korsch, W and Lerose, JJ and Li, X and Li, Y and Lindgren, R and Liyanage,
N and Long, E and Lu, HJ and Margaziotis, DJ and Markowitz, P and Marrone,
S and McNulty, D and Meziani, ZE and Michaels, R and Moffit, B and Muñoz
Camacho, C and Nanda, S and Narayan, A and Nelyubin, V and Norum, B and Oh,
Y and Osipenko, M and Parno, D and Peng, JC and Phillips, SK and Posik, M and Puckett, AJR and Qian, X and Qiang, Y and Rakhman, A and Ransome, R and Riordan, S and Saha, A and Sawatzky, B and Schulte, E and Shahinyan, A and Shabestari, MH and Širca, S and Stepanyan, S and Subedi, R and Sulkosky, V and Tang, LG and Tobias, WA and Urciuoli, GM and Vilardi,
I},
Title = {Double spin asymmetries of inclusive hadron
electroproduction from a transversely polarized He 3
target},
Journal = {Physical Review C - Nuclear Physics},
Volume = {92},
Number = {1},
Publisher = {American Physical Society (APS)},
Year = {2015},
Month = {July},
url = {http://dx.doi.org/10.1103/PhysRevC.92.015207},
Abstract = {We report the measurement of beam-target double spin
asymmetries (A LT) in the inclusive production of identified
hadrons, e + 3 He → h + X, using a longitudinally
polarized 5.9-GeV electron beam and a transversely polarized
He 3 target. Hadrons (π ±, K ±, and proton) were detected
at 16 with an average momentum P h = 2.35 GeV/c and a
transverse momentum (p T) coverage from 0.60 to 0.68 GeV/c.
Asymmetries from the He 3 target were observed to be nonzero
for π ± production when the target was polarized
transversely in the horizontal plane. The π + and π -
asymmetries have opposite signs, analogous to the behavior
of A LT in semi-inclusive deep-inelastic
scattering.},
Doi = {10.1103/PhysRevC.92.015207},
Key = {fds333213}
}
@article{fds246022,
Author = {Gao, H},
Title = {Effective neutron targets},
Journal = {Nuclear Physics A},
Volume = {631},
Pages = {170-189},
Publisher = {Elsevier BV},
Year = {1998},
Month = {March},
url = {http://dx.doi.org/10.1016/s0375-9474(98)00022-0},
Abstract = {Because of the lack of a free neutron target, deuterium
targets have been used extensively in studying the neutron
structure. The unique spin structure of the 3He ground state
wave function and the recent developments in laser
technologies made polarized 3He targets widely used in many
experiments from neutron electromagnetic form factor studies
to nucleon spin structure function measurements at all major
electron accelerator facilities. In this talk, the current
status of the polarized 3He targets will be reviewed. I will
focus on neutron electromagnetic form factor studies using
polarized 3He targets. The polarized nucleon spin structure
function measurements using polarized 3He targets will also
be discussed.},
Doi = {10.1016/s0375-9474(98)00022-0},
Key = {fds246022}
}
@article{fds357239,
Author = {Hague, TJ and Dutta, D and Higinbotham, DW and Bai, X and Gao, H and Gasparian, A and Gnanvo, K and Khachatryan, V and Khandaker, M and Liyanage, N and Pasyuk, E and Peng, C and Xiong, W and Zhou,
J},
Title = {Elastic positron–proton scattering at low Q
2},
Journal = {European Physical Journal A},
Volume = {57},
Number = {6},
Year = {2021},
Month = {June},
url = {http://dx.doi.org/10.1140/epja/s10050-021-00508-6},
Abstract = {Systematic differences in the the proton’s charge radius,
as determined by ordinary atoms and muonic atoms, have
caused a resurgence of interest in elastic lepton scattering
measurements. The proton’s charge radius, defined as the
slope of the charge form factor at Q2 = 0, does not depend
on the probe. Any difference in the apparent size of the
proton, when determined from ordinary versus muonic
hydrogen, could point to new physics or need for the higher
order corrections. While recent measurements seem to now be
in agreement, there is to date no high precision elastic
scattering data with both electrons and positrons. A high
precision proton radius measurement could be performed in
Hall B at Jefferson Lab with a positron beam and the
calorimeter based setup of the PRad experiment. This
measurement could also be extended to deuterons where a
similar discrepancy has been observed between the muonic and
electronic determination of deuteron charge radius. A new,
high precision measurement with positrons, when viewed
alongside electron scattering measurements and the
forthcoming MUSE muon scattering measurement, could help
provide new insights into the origins of the proton radius
puzzle, and also provide new experimental constraints on
radiative correction calculations.},
Doi = {10.1140/epja/s10050-021-00508-6},
Key = {fds357239}
}
@article{fds344652,
Author = {Accardi, A and Albacete, JL and Anselmino, M and Armesto, N and Aschenauer, EC and Bacchetta, A and Boer, D and Brooks, WK and Burton,
T and Chang, NB and Deng, WT and Deshpande, A and Diehl, M and Dumitru, A and Dupré, R and Ent, R and Fazio, S and Gao, H and Guzey, V and Hakobyan, H and Hao, Y and Hasch, D and Holt, R and Horn, T and Huang, M and Hutton, A and Hyde, C and Jalilian-Marian, J and Klein, S and Kopeliovich, B and Kovchegov, Y and Kumar, K and Kumerički, K and Lamont, MAC and Lappi,
T and Lee, JH and Lee, Y and Levin, EM and Lin, FL and Litvinenko, V and Ludlam, TW and Marquet, C and Meziani, ZE and McKeown, R and Metz, A and Milner, R and Morozov, VS and Mueller, AH and Müller, B and Müller, D and Nadel-Turonski, P and Paukkunen, H and Prokudin, A and Ptitsyn, V and Qian, X and Qiu, JW and Ramsey-Musolf, M and Roser, T and Sabatié, F and Sassot, R and Schnell, G and Schweitzer, P and Sichtermann, E and Stratmann, M and Strikman, M and Sullivan, M and Taneja, S and Toll, T and Trbojevic, D and Ullrich, T and Venugopalan, R and Vigdor, S and Vogelsang, W and Weiss, C and Xiao, BW and Yuan, F and Zhang, YH and Zheng,
L},
Title = {Electron-Ion Collider: The next QCD frontier: Understanding
the glue that binds us all},
Journal = {European Physical Journal A},
Volume = {52},
Number = {9},
Year = {2016},
Month = {September},
url = {http://dx.doi.org/10.1140/epja/i2016-16268-9},
Abstract = {This White Paper presents the science case of an
Electron-Ion Collider (EIC), focused on the structure and
interactions of gluon-dominated matter, with the intent to
articulate it to the broader nuclear science community. It
was commissioned by the managements of Brookhaven National
Laboratory (BNL) and Thomas Jefferson National Accelerator
Facility (JLab) with the objective of presenting a summary
of scientific opportunities and goals of the EIC as a
follow-up to the 2007 NSAC Long Range plan. This document is
a culmination of a community-wide effort in nuclear science
following a series of workshops on EIC physics over the past
decades and, in particular, the focused ten-week program on
“Gluons and quark sea at high energies” at the Institute
for Nuclear Theory in Fall 2010. It contains a brief
description of a few golden physics measurements along with
accelerator and detector concepts required to achieve them.
It has been benefited profoundly from inputs by the users’
communities of BNL and JLab. This White Paper offers the
promise to propel the QCD science program in the US,
established with the CEBAF accelerator at JLab and the RHIC
collider at BNL, to the next QCD frontier.},
Doi = {10.1140/epja/i2016-16268-9},
Key = {fds344652}
}
@article{fds246033,
Author = {Reinhold, J and Abbott, D and Ahmidouch, A and Ambrozewicz, P and Armstrong, CS and Arrington, J and Asaturyan, R and Assamagan, K and Avery, S and Bailey, K and Baker, OK and Beedoe, S and Bitao, H and Boeglin, W and Breuer, H and Brown, DS and Carlini, R and Cha, J and Chant,
N and Christy, E and Cochran, A and Cole, L and Collins, G and Cothran, C and Crowder, J and Cummings, WJ and Danagoulian, S and Dohrmann, F and Duncan, F and Dunne, J and Dutta, D and Eden, T and Elaasar, M and Ent, R and Ewell, L and Fenker, H and Fortune, HT and Fujii, Y and Gan, L and Gao, H and Garrow, K and Geesaman, DF and Gueye, P and Gustafsson, K and Hafidi, K and Hansen, JO and Hinton, W and Jackson, HE and Juengst, H and Keppel, C and Klein, A and Koltenuk, D and Liang, Y and Liu, JH and Lung, A and Mack, D and Madey, R and Markowitz, P and Martoff, CJ and Meekins, D and Mitchell,
J and Miyoshi, T and Mkrtchyan, H and Mohring, R and Mtingwa, SK and Mueller, B and O'Neill, TG and Niculescu, G and Niculescu, I and Potterveld, D and Price, JW and Raue, BA and Reimer, PE and Roche, J and Roos, P and Sarsour, M and Sato, Y and Savage, G and Sawafta, R and Schiffer, JP and Segel, RE and Semenov, A and Stepanyan, S and Tadevosian, V and Tajima, S and Tang, L and Terburg, B and Uzzle, A and Wood, S and Yamaguchi, H and Yan, C and Yuan, L and Zeidman, B and Zeier,
M and Zihlmann, B},
Title = {Electroproduction of kaons and light hypernuclei},
Journal = {Nuclear Physics A},
Volume = {684},
Number = {1-4},
Pages = {470-474},
Publisher = {Elsevier BV},
Year = {2001},
Month = {March},
ISSN = {0375-9474},
url = {http://dx.doi.org/10.1016/S0375-9474(01)00509-7},
Abstract = {Kaon electroproduction on hydrogen, deuterium and helium
targets has been measured at a beam energy of 3.245 GeV and
four-momentum transfer, Q2, ranging from 0.34 to 0.5 GeV2.
Associated hyperon production off a nucleon in the deuteron
exhibits a quasifree production mechanism. Excess yield
close to the respective thresholds for Λ and Σ production
is observed. This can be accounted for by final-state
interaction between the electroproduced hyperon and the
spectator nucleon. The effects predicted from three
different hyperon-nucleon potentials are compared to the
data. The measurement on the helium targets is the first
ever performed. Very preliminary results are
presented.},
Doi = {10.1016/S0375-9474(01)00509-7},
Key = {fds246033}
}
@article{fds246035,
Author = {Zeidman, B and Abbott, D and Ahmidouch, A and Ambrozewicz, P and Armstrong, CS and Arrington, J and Asaturyan, R and Assamagan, K and Avery, S and Bailey, K and Baker, OK and Beedoe, S and Bitao, H and Breuer,
H and Brown, DS and Carlini, R and Cha, J and Chant, N and Christy, E and Cochran, A and Cole, L and Collins, G and Cothran, C and Crowder, J and Cummings, WJ and Danagoulian, S and Dohrmann, F and Duncan, F and Dunne,
J and Dutta, D and Eden, T and Elaasar, M and Ent, R and Ewell, L and Fenker,
H and Fortune, HT and Fujii, Y and Gan, L and Gao, H and Garrow, K and Geesaman, DF and Gueye, P and Gustafsson, K and Hafidi, K and Hansen,
JO and Hinton, W and Jackson, HE and Juengst, H and Keppel, C and Klein, A and Koltenuk, D and Liang, Y and Liu, JH and Lung, A and Mack, D and Madey, R and Markowitz, P and Martoff, CJ and Meekins, D and Mitchell, J and Miyoshi,
T and Mkrtchyan, H and Mohring, R and Mtingwa, SK and Mueller, B and O'Neill, TG and Niculescu, G and Niculescu, I and Potterveld, D and Price, JW and Raue, BA and Reimer, PE and Reinhold, J and Roche, J and Roos, P and Sarsour, M and Sato, Y and Savage, G and Sawafta, R and Schiffer, JP and Segel, RE and Semenov, A and Stepanyan, S and Tadevosian, V and Tajima, S and Tang, L and Terburg, B and Uzzle, A and Wood, S and Yamaguchi, H and Yan, C and Yuan, L and Zeier, M and Zihlmann,
B},
Title = {Electroproduction of kaons on light nuclei},
Journal = {Nuclear Physics A},
Volume = {691},
Number = {1-2},
Pages = {37-42},
Publisher = {Elsevier BV},
Year = {2001},
Month = {August},
url = {http://dx.doi.org/10.1016/S0375-9474(01)00999-X},
Abstract = {The A(e,e'Κ+)YX reaction on H, D, 3He, and 4He was
investigated in Hall C at CE-BAF. Data were obtained for Q2
≈ 0.35 and 0.5 GeV2 at 3.245 GeV. The missing mass spectra
for both H and D are fitted with Monte-Carlo simulations
incorporating peaks corresponding to Λ production on the
proton and Σ production on both the proton and neutron. For
D, the cross section ratio Σ0/Σ- ≈ 2, and excess yield
close to the thresholds for Λ and Σ production can be
attributed to final-state interactions; models are compared
to the data. The analysis of the data for the He targets is
in a more preliminary state with broader quasi-free peaks
resulting from the higher Fermi momenta. Evidence for bound
Λ-hypernuclear states is seen and other structure may be
present.},
Doi = {10.1016/S0375-9474(01)00999-X},
Key = {fds246035}
}
@article{fds246062,
Author = {Dohrmann, F and Abbott, D and Ahmidouch, A and Ambrozewicz, P and Armstrong, CS and Arrington, J and Asaturyan, R and Assamagan, K and Avery, S and Bailey, K and Beedoe, S and Bitao, H and Breuer, H and Brown,
DS and Carlini, R and Cha, J and Chant, N and Christy, E and Cochran, A and Cole, L and Collins, G and Cothran, C and Crowder, J and Cummings, WJ and Danagoulian, S and Duncan, F and Dunne, J and Dutta, D and Eden, T and Elaasar, M and Ent, R and Ewell, L and Fenker, H and Fortune, HT and Fujii,
Y and Gan, L and Gao, H and Garrow, K and Geesaman, DF and Gueye, P and Gustafsson, K and Hafidi, K and Hansen, JO and Hinton, W and Jackson,
HE and Juengst, H and Keppel, C and Klein, A and Koltenuk, D and Liang, Y and Liu, JH and Lung, A and MacK, D and Madey, R and Markowitz, P and Martoff,
CJ and Meekins, D and Mitchell, J and Miyoshi, T and Mkrtchyan, H and Mohring, R and Mtingwa, SK and Mueller, B and O'Neill, TG and Niculescu,
G and Niculescu, I and Potterveld, D and Price, JW and Raue, BA and Reimer,
PE and Reinhold, J and Roche, J and Roos, P and Sarsour, M and Sato, Y and Savage, G and Sawafta, R and Segel, RE and Semenov, AY and Stepanyan, S and Tadevosian, V and Tajima, S and Tang, L and Terburg, B and Uzzle, A and Wood, S and Yamaguchi, H and Yan, C and Yuan, L and Zeier, M and Zeidman,
B and Zihlmann, B},
Title = {Electroproduction of strangeness on Λ3,4H
bound states on Helium},
Journal = {AIP Conference Proceedings},
Volume = {768},
Pages = {294-296},
Publisher = {AIP},
Year = {2005},
Month = {May},
ISSN = {0094-243X},
url = {http://dx.doi.org/10.1063/1.1932939},
Abstract = {The A(e,e′K +)X reaction has been investigated at
Jefferson Laboratory. Data were taken for Q 2 ≈ 0.35 GeV 2
at a beam energy of 3.245 GeV for 1H, 3He and 4He targets.
Evidence for Λ-hypernuclear bound states is seen for 3,4He
targets. This is the first time that the electroproduction
of these hypernuclei has been observed. © 2005 American
Institute of Physics.},
Doi = {10.1063/1.1932939},
Key = {fds246062}
}
@article{fds246047,
Author = {Gao, H},
Title = {Erratum: Nucleon Electromagnetic Form Factors (International
Journal of Modern Physics E (2003) 12:1 (1-40))},
Journal = {International Journal of Modern Physics E},
Volume = {12},
Number = {4},
Pages = {567},
Publisher = {World Scientific Pub Co Pte Lt},
Year = {2003},
Month = {August},
url = {http://dx.doi.org/10.1142/S0218301303001454},
Doi = {10.1142/S0218301303001454},
Key = {fds246047}
}
@article{fds246190,
Author = {H. Gao and Airapetian, A and Akopov, N and Amarian, M and Aschenauer, EC and Avakian, H and Avakian, R and Avetissian, A and Avetissian, E and Bains,
B and Baumgarten, C and Beckmann, M and Belostotski, S and Belz, JE and Benisch, T and Bernreuther, S and Bianchi, N and Blouw, J and Böttcher,
H and Borissov, A and Bouwhuis, M and Brack, J and Brauksiepe, S and Braun,
B and Bray, B and Brons, S and Brückner, W and Brüll, A and Bruins, EEW and Bulten, HJ and Capitani, GP and Carter, P and Chumney, P and Cisbani, E and Court, GR and Dalpiaz, PF and De Sanctis and E and De Schepper and D and Devitsin, E and de Witt Huberts and PKA and Di Nezza and P and Düren, M and Dvoredsky, A and Elbakian, G and Ely, J and Fantoni, A and Fechtchenko,
A and Ferstl, M and Fiedler, K and Filippone, BW and Fischer, H and Fox, B and Franz, J and Frullani, S and Funk, MA and Gärber, Y and Gao, H and Garibaldi, F and Gavrilov, G and Geiger, P and Gharibyan, V and Golendukhin, A and Graw, G and Grebeniouk, O and Green, PW and Greeniaus, LG and Grosshauser, C and Guidal, M and Gute, A and Gyurjyan,
V and Haas, JP and Haeberli, W and Hansen, JO and Hartig, M and Hasch, D and Häusser, O and Heinsius, FH and Henderson, R and Henoch, M and Hertenberger, R and Holler, Y and Holt, RJ and Hoprich, W and Ihssen, H and Iodice, M and Izotov, A and Jackson, HE and Jgoun, A and Kaiser, R and Kinney, E and Kisselev, A and Kitching, P and Kobayashi, H and Koch, N and Königsmann, K and Kolstein, M and Kolster, H and Korotkov, V and Korsch, W and Kozlov, V and Kramer, LH},
Title = {Evidence for a single-spin azimuthal asymmetry in
semi-inclusive pion electroproduction},
Journal = {Physical Review Letters},
Volume = {84},
Number = {18},
Pages = {4047-4051},
Publisher = {American Physical Society (APS)},
Year = {2000},
Month = {January},
ISSN = {0031-9007},
url = {http://dx.doi.org/10.1103/PhysRevLett.84.4047},
Abstract = {Single-spin asymmetries for semi-inclusive pion production
in deep-inelastic scattering have been measured for the
first time. A significant target-spin asymmetry of the
distribution in the azimuthal angle φ of the pion relative
to the lepton scattering plane was formed for π+
electroproduction on a longitudinally polarized hydrogen
target. The corresponding analyzing power in the sinφ
moment of the cross section is 0.022±0.005±0.003. This
result can be interpreted as the effect of terms in the
cross section involving chiral-odd spin distribution
functions in combination with a chiral-odd fragmentation
function that is sensitive to the transverse polarization of
the fragmenting quark. © 2000 The American Physical
Society.},
Doi = {10.1103/PhysRevLett.84.4047},
Key = {fds246190}
}
@article{fds246193,
Author = {H. Gao and Cadman, RV and Brack, J and Cummings, WJ and Fedchak, JA and Fox, BD and Gao, H and Glöckle, W and Golak, J and Grosshauser, C and Holt, RJ and Jones, CE and Kamada, H and Kinney, ER and Miller, MA and Nagengast, W and Nogga, A and Owen, BR and Rith, K and Schmidt, F and Schulte, EC and Sowinski, J and Sperisen, F and Thorsland, EL and Tobey, R and Wilbert,
J and Witała, H},
Title = {Evidence for a three-nucleon-force effect in proton-deuteron
elastic scattering},
Journal = {Physical Review Letters},
Volume = {86},
Number = {6},
Pages = {967-970},
Publisher = {American Physical Society (APS)},
Year = {2001},
Month = {February},
url = {http://dx.doi.org/10.1103/PhysRevLett.86.967},
Abstract = {Developments in spin-polarized internal targets for storage
rings have permitted measurements of 197 MeV polarized
protons scattering from vector polarized deuterons. This
work presents measurements of the polarization observables
Ay, iT11, and Cy,y, in proton-deuteron elastic scattering.
When compared to calculations with and without three-nucleon
forces, the measurements provide further evidence that
three-nucleon forces make a contribution to the observables.
This work indicates that three-body forces derived from
static nuclear properties appear to be crucial to the
description of dynamical properties. © 2001 The American
Physical Society.},
Doi = {10.1103/PhysRevLett.86.967},
Key = {fds246193}
}
@article{fds246191,
Author = {H. Gao and Niculescu, I and Armstrong, CS and Arrington, J and Assamagan, KA and Baker, OK and Beck, DH and Bochna, CW and Carlini, RD and Cha, J and Cothran, C and Day, DB and Dunne, JA and Dutta, D and Ent, R and Frolov,
VV and Gao, H and Geesaman, DF and Gueye, PLJ and Hinton, W and Holt, RJ and Jackson, HE and Keppel, CE and Koltenuk, DM and Mack, DJ and Meekins,
DG and Miller, MA and Mitchell, JH and Mohring, RM and Niculescu, G and Potterveld, D and Price, JW and Reinhold, J and Segel, RE and Stoler, P and Tang, L and Terburg, BP and Van Westrum and D and Vulcan, WF and Wood, SA and Yan, C and Zeidman, B},
Title = {Evidence for valencelike quark-hadron duality},
Journal = {Physical Review Letters},
Volume = {85},
Number = {6},
Pages = {1182-1185},
Publisher = {American Physical Society (APS)},
Year = {2000},
Month = {August},
url = {http://dx.doi.org/10.1103/PhysRevLett.85.1182},
Abstract = {The inclusive electron-nucleon scattering cross sections in
the resonance region for both hydrogen and deuterium targets
were measured. From these cross sections, the structure
function F2 was extracted. The obtained data indicate that
the F2 structure function at low momentum transfers follows
the behavior of valencelike quarks only.},
Doi = {10.1103/PhysRevLett.85.1182},
Key = {fds246191}
}
@article{fds246176,
Author = {H. Gao and Van Den Brand and JFJ and Ent, R and Anthony, PL and Arnold, RG and Arrington, J and Beise, EJ and Belz, JE and Bosted, PE and Bulten, HJ and Chapman, MS and Coulter, KP and Dietrich, FS and Epstein, M and Filippone, BW and Gao, H and Gearhart, RA and Geesaman, DF and Hansen,
JO and Holt, RJ and Jackson, HE and Jones, CE and Keppel, CE and Kinney,
ER and Kuhn, S and Lee, K and Lorenzon, W and Lung, A and Makins, NCR and Margaziotis, DJ and McKeown, RD and Milner, RG and Mueller, B and Napolitano, J and Nelson, J and O'Neill, TG and Papavassiliou, V and Petratos, GG and Potterveld, DH and Rock, SE and Spengos, M and Szalata,
ZM and Tao, LH and Van Bibber and K and Wasson, DA and White, JL and Zeidman,
B},
Title = {Evidence for virtual Compton scattering from the
proton},
Journal = {Physical Review D},
Volume = {52},
Number = {9},
Pages = {4868-4871},
Publisher = {American Physical Society (APS)},
Year = {1995},
Month = {January},
ISSN = {0556-2821},
url = {http://dx.doi.org/10.1103/PhysRevD.52.4868},
Abstract = {In virtual Compton scattering an electron is scattered off a
nucleon such that the nucleon emits a photon. We show that
these events can be selected experimentally, and present the
first evidence for virtual Compton scattering from the
proton in data obtained at the Stanford Linear Accelerator
Center. The angular and energy dependence of the data is
well described by a calculation that includes the coherent
sum of electron and proton radiation. © 1995 The American
Physical Society.},
Doi = {10.1103/PhysRevD.52.4868},
Key = {fds246176}
}
@booklet{Bulten95,
Author = {Bulten, HJ and Anthony, PL and Arnold, RG and Arrington, J and Beise,
EJ and Belz, E and Van Bibber and K and Bosted, PE and Van Den Brand and JFJ and Chapman, MS and Coulter, KP and Dietrich, FS and Ent, R and Epstein, M and Filippone, BW and Gao, H and Gearhart, RA and Geesaman, DF and Hansen,
JO and Holt, RJ and Jackson, HE and Jones, CE and Keppel, CE and Kinney, E and Kuhn, SE and Lee, K and Lorenzon, W and Lung, A and Makins, NCR and Margaziotis, DJ and McKeown, RD and Milner, RG and Mueller, B and Napolitano, J and Nelson, J and O'Neill, TG and Papavassiliou, V and Petratos, GG and Potterveld, DH and Rock, SE and Spengos, M and Szalata,
ZM and Tao, LH and White, JL and Zeidman, B},
Title = {Exclusive electron scattering from deuterium at high
momentum transfer},
Journal = {Physical Review Letters},
Volume = {74},
Number = {24},
Pages = {4775-4778},
Publisher = {American Physical Society (APS)},
Year = {1995},
Month = {January},
url = {http://dx.doi.org/10.1103/PhysRevLett.74.4775},
Abstract = {Cross sections are presented for the reaction H2(e,e′p)n
for momentum transfers in the range 1.2≤Q2≤6.8 (GeV/c)2
and for missing momenta from 0 to 250 MeV/c. The
longitudinal-transverse interference structure function has
been separated at Q2=1.2 (GeV/c)2. The observables are
compared to calculations performed in nonrelativistic and
relativistic frameworks. The data are best described by a
fully relativistic calculation. © 1995 The American
Physical Society.},
Doi = {10.1103/PhysRevLett.74.4775},
Key = {Bulten95}
}
@article{fds246049,
Author = {Gao, H},
Title = {Exclusive processes at Jefferson Lab},
Journal = {Pramana - Journal of Physics},
Volume = {61},
Number = {5},
Pages = {837-846},
Publisher = {Springer Nature},
Year = {2003},
Month = {January},
url = {http://dx.doi.org/10.1007/BF02704452},
Abstract = {Mapping the transition from strongly interacting,
non-perturbative quantum chromodynamics, where nucleon-meson
degrees of freedom are effective to perturbative QCD of
quark and gluon degrees of freedom, is one of the most
fundamental, challenging tasks in nuclear and particle
physics. Exclusive processes such as proton-proton elastic
scattering, meson photoproduction, and deuteron
photodisintegration have been pursued extensively at many
laboratories over the years in the search for such a
transition, particularly at Jefferson Lab in recent years,
taking the advantage of the high luminosity capability of
the CEBAF facility. In this talk, I review recent results
from Jefferson Lab on deuteron photodisintegration and
photopion production processes and the future 12 GeV
program.},
Doi = {10.1007/BF02704452},
Key = {fds246049}
}
@article{fds246145,
Author = {Gao, H and Ma, BQ},
Title = {Exotic hadrons of minimal pentaquark (qqqqq̄)
states},
Journal = {Modern Physics Letters A},
Volume = {14},
Number = {33},
Pages = {2313-2319},
Publisher = {World Scientific Pub Co Pte Lt},
Year = {1999},
Month = {October},
url = {http://dx.doi.org/10.1142/S021773239900239X},
Abstract = {It is shown that the exotic non-qqq hadrons of pentaquark
qqqqq̄ states can be clearly distinguished from the
conventional qqq-baryon resonances or their hybrids if the
flavor of q̄ is different from any of the other four
quarks. We suggest the physical process p(e,e′K-)Z(uuuds̄),
which can be investigated at the Thomas Jefferson National
Accelerator Facility (JLab), as an ideal process to search
for the existence or non-existence of the exotic hadron of
minimal pentaquark state Z(uuuds̄).},
Doi = {10.1142/S021773239900239X},
Key = {fds246145}
}
@article{fds335577,
Author = {Liu, T and Zhao, Z and Gao, H},
Title = {Experimental constraint on quark electric dipole
moments},
Journal = {Physical Review D},
Volume = {97},
Number = {7},
Pages = {9 pages},
Publisher = {American Physical Society (APS)},
Year = {2018},
Month = {April},
url = {http://dx.doi.org/10.1103/PhysRevD.97.074018},
Abstract = {The electric dipole moments (EDMs) of nucleons are sensitive
probes of additional CP violation sources beyond the
standard model to account for the baryon number asymmetry of
the universe. As a fundamental quantity of the nucleon
structure, tensor charge is also a bridge that relates
nucleon EDMs to quark EDMs. With a combination of nucleon
EDM measurements and tensor charge extractions, we
investigate the experimental constraint on quark EDMs, and
its sensitivity to CP violation sources from new physics
beyond the electroweak scale. We obtain the current limits
on quark EDMs as 1.27×10-24 e·cm for the up quark and
1.17×10-24 e·cm for the down quark at the scale of 4 GeV2.
We also study the impact of future nucleon EDM and tensor
charge measurements, and show that upcoming new experiments
will improve the constraint on quark EDMs by about 3 orders
of magnitude leading to a much more sensitive probe of new
physics models.},
Doi = {10.1103/PhysRevD.97.074018},
Key = {fds335577}
}
@article{fds333212,
Author = {Gao, H and Liu, T},
Title = {Experimental overview on GPDs and TMDs},
Journal = {Proceedings of Science},
Volume = {2016-September},
Year = {2016},
Month = {January},
Abstract = {The generalized parton distribution (GPD) functions and the
transverse momentum dependent parton distribution (TMD)
functions provide three-dimensional tomographies in the
combined momentum-coordinate space (GPD) and the complete
momentum space (TMD) of partons inside the nucleon. They
uncover the rich dynamics of QCD, and provide qualitative
and quantitative information about the partonic orbital
angular momentum, an important piece to the solution of the
proton spin puzzle. In the last ten years or so, significant
progresses have been made experimentally in accessing the
GPDs and TMDs. In this talk, we review the experimental
progress on GPDs and TMDs and also discuss upcoming
experiments in the coming decade.},
Key = {fds333212}
}
@article{fds315787,
Author = {Gao, H and Peng, C and Zhao, ZW},
Title = {Experimental progress and status on nucleon electromagnetic
form factors},
Journal = {EPJ Web of Conferences},
Volume = {113},
Pages = {01012-01012},
Publisher = {E D P SCIENCES},
Editor = {Elster, C and Phillips, D and Roberts, C},
Year = {2016},
Month = {March},
url = {http://dx.doi.org/10.1051/epjconf/201611301012},
Abstract = {Nucleon electromagnetic form factors are the fundamental
quantities that are related to a two-dimensional view of the
charge and magnetization distribution in the nucleon. They
are essential in understanding the nucleon electromagnetic
structure. In this article, we briefly summarize the recent
experimental progress on this topic, and introduce several
experiments related to the nucleon electromagnetic form
factors in the near future.},
Doi = {10.1051/epjconf/201611301012},
Key = {fds315787}
}
@article{fds246078,
Author = {Qian, X and Horn, T and Clasie, B and Arrington, J and Asaturyan, R and Benmokhtar, F and Boeglin, W and Bosted, P and Bruell, A and Christy,
ME and Chudakov, E and Dalton, MM and Daniel, A and Day, D and Dutta, D and El
Fassi, L and Ent, R and Fenker, HC and Ferrer, J and Fomin, N and Gao, H and Garrow, K and Gaskell, D and Gray, C and Huber, GM and Jones, MK and Kalantarians, N and Keppel, CE and Kramer, K and Li, Y and Liang, Y and Lung, AF and Malace, S and Markowitz, P and Matsumura, A and Meekins,
DG and Mertens, T and Miyoshi, T and Mkrtchyan, H and Monson, R and Navasardyan, T and Niculescu, G and Niculescu, I and Okayasu, Y and Opper, AK and Perdrisat, C and Punjabi, V and Rauf, AW and Rodriquez,
VM and Rohe, D and Seely, J and Segbefia, E and Smith, GR and Sumihama, M and Tadevosyan, V and Tang, L and Villano, A and Vulcan, WF and Wesselmann,
FR and Wood, SA and Yuan, L and Zheng, X},
Title = {Experimental study of the A(e,e′π+) reaction
on H1, H2, C12, Al27, Cu63, and Au197},
Journal = {Physical Review C - Nuclear Physics},
Volume = {81},
Number = {5},
Publisher = {American Physical Society (APS)},
Year = {2010},
Month = {May},
ISSN = {0556-2813},
url = {http://hdl.handle.net/10161/4261 Duke open
access},
Abstract = {Cross sections for the H1(e,e′π+)n process on H1, H2,
C12, Al27, Cu63, and Au197 targets were measured at the
Thomas Jefferson National Accelerator Facility (Jefferson
Lab) to extract nuclear transparencies. Data were taken from
Q2=1.1-4.7 GeV2 for a fixed center-of-mass energy of W=2.14
GeV. The ratio of σL and σT was extracted from the
measured cross sections for H1, H2, C12, and Cu63 targets at
Q2=2.15 and 4.0 GeV2, allowing for additional studies of the
reaction mechanism. In this article, we present the
experimental setup and the analysis of the data in detail,
including systematic uncertainty studies. Differential cross
sections and nuclear transparencies as a function of the
pion momentum at different values of Q2 are presented. Our
results are consistent with the predicted early onset of
color transparency in mesons. Global features of the data
are discussed and the data are compared with model
calculations for the H1(e,e′π+)n reaction from nuclear
targets. © 2010 The American Physical Society.},
Doi = {10.1103/PhysRevC.81.055209},
Key = {fds246078}
}
@article{fds246192,
Author = {H. Gao and Niculescu, I and Armstrong, CS and Arrington, J and Assamagan, KA and Baker, OK and Beck, DH and Bochna, CW and Carlini, RD and Cha, J and Cothran, C and Day, DB and Dunne, JA and Dutta, D and Ent, R and Filippone,
BW and Frolov, VV and Gao, H and Geesaman, DF and Gueye, PLJ and Hinton, W and Holt, RJ and Jackson, HE and Keppel, CE and Koltenuk, DM and Mack, DJ and Meekins, DG and Miller, MA and Mitchell, JH and Mohring, RM and Niculescu, G and Potterveld, D and Price, JW and Reinhold, J and Segel,
RE and Stoler, P and Tang, L and Terburg, BP and Van Westrum and D and Vulcan,
WF and Wood, SA and Yan, C and Zeidman, B},
Title = {Experimental verification of quark-hadron
duality},
Journal = {Physical Review Letters},
Volume = {85},
Number = {6},
Pages = {1186-1189},
Year = {2000},
Month = {August},
url = {http://dx.doi.org/10.1103/PhysRevLett.85.1186},
Abstract = {Quark-hadron duality was experimentally revisited using new
inclusive data in the resonance region at large x. The
original duality observations were verified. The quantum
chromodynamics (QCD) moment explanation indicated that
higher twist contributions to the n=2 moment of the F2
structure function are small or canceling. In general,
duality appeared to be a nontrivial dynamic property of the
nucleon structure function.},
Doi = {10.1103/PhysRevLett.85.1186},
Key = {fds246192}
}
@article{fds246115,
Author = {Tarasov, VE and Briscoe, WJ and Gao, H and Kudryavtsev, AE and Strakovsky, II},
Title = {Extracting the photoproduction cross section off the neutron
$\gamma n \rightarrow \pi^- p$ from deuteron data with FSI
effects},
Journal = {Phys. Rev. C},
Volume = {84},
Number = {3},
Pages = {035203},
Year = {2011},
ISSN = {0556-2813},
url = {http://dx.doi.org/10.1103/PhysRevC.84.035203},
Abstract = {The incoherent pion photoproduction reaction
γd→π -pp is considered theoretically in a wide
energy region E th≤Eγ≤2700 MeV. The model
applied contains the impulse approximation as well as the NN
and πN final-state-interaction (FSI) amplitudes. The aim
of the paper is to study a reliable way for getting the
information on elementary γn→π-p reaction
cross sections beyond the impulse approximation for
γd→π-pp. For the elementary
γN→πN, NN→NN, and πN→πN
amplitudes, the results of The George Washington University
(GW) Data Analysis Center (DAC) are used. There are no
additional theoretical constraints. The calculated cross
sections dσ/dΩ(γd→π-pp) are compared
with existing data. The procedure used to extract
information on the differential cross section
dσ/dΩ(γn→π -p) on the neutron from the
deuteron data using the FSI correction factor R is
discussed. The calculations for R versus π-p
center-of-mass (CM) angle θ1 of the outgoing pion are
performed at different photon-beam energies with kinematic
cuts for a "quasifree" process γn→π-p. The
results show a sizable FSI effect R≠1 from the S-wave
part of pp-FSI at small angles close to θ1∼0: this
region narrows as the photon energy increases. At larger
angles, the effect is small (|R-1| 1) and agrees with
estimations of FSI in the Glauber approach. © 2011
American Physical Society.},
Doi = {10.1103/PhysRevC.84.035203},
Key = {fds246115}
}
@article{fds304560,
Author = {Tarasov, VE and Briscoe, WJ and Gao, H and Kudryavtsev, AE and Strakovsky, II},
Title = {Extracting the photoproduction cross sections off the
neutron, via the γn→π-p reaction, from
deuteron data with final-state interaction
effects},
Journal = {Physical Review C - Nuclear Physics},
Volume = {84},
Number = {3},
Publisher = {American Physical Society (APS)},
Year = {2011},
Month = {September},
ISSN = {0556-2813},
url = {http://dx.doi.org/10.1103/PhysRevC.84.035203},
Abstract = {The incoherent pion photoproduction reaction γd→π -pp is
considered theoretically in a wide energy region E
th≤Eγ≤2700 MeV. The model applied contains the impulse
approximation as well as the NN and πN final-state-interaction
(FSI) amplitudes. The aim of the paper is to study a
reliable way for getting the information on elementary
γn→π-p reaction cross sections beyond the impulse
approximation for γd→π-pp. For the elementary γN→πN,
NN→NN, and πN→πN amplitudes, the results of The George
Washington University (GW) Data Analysis Center (DAC) are
used. There are no additional theoretical constraints. The
calculated cross sections dσ/dΩ(γd→π-pp) are compared
with existing data. The procedure used to extract
information on the differential cross section
dσ/dΩ(γn→π -p) on the neutron from the deuteron data
using the FSI correction factor R is discussed. The
calculations for R versus π-p center-of-mass (CM) angle θ1
of the outgoing pion are performed at different photon-beam
energies with kinematic cuts for a "quasifree" process
γn→π-p. The results show a sizable FSI effect R≠1 from
the S-wave part of pp-FSI at small angles close to θ1∼0:
this region narrows as the photon energy increases. At
larger angles, the effect is small (|R-1| 1) and agrees with
estimations of FSI in the Glauber approach. © 2011 American
Physical Society.},
Doi = {10.1103/PhysRevC.84.035203},
Key = {fds304560}
}
@article{fds332007,
Author = {Sulkosky, V and Jin, G and Long, E and Zhang, YW and Mihovilovic, M and Kelleher, A and Anderson, B and Higinbotham, DW and Širca, S and Allada, K and Annand, JRM and Averett, T and Bertozzi, W and Boeglin, W and Bradshaw, P and Camsonne, A and Canan, M and Cates, GD and Chen, C and Chen, JP and Chudakov, E and De Leo and R and Deng, X and Deur, A and Dutta,
C and El Fassi and L and Flay, D and Frullani, S and Garibaldi, F and Gao, H and Gilad, S and Gilman, R and Glamazdin, O and Golge, S and Gomez, J and Hansen, JO and Holmstrom, T and Huang, J and Ibrahim, H and De Jager,
CW and Jensen, E and Jiang, X and Jones, M and Kang, H and Katich, J and Khanal, HP and King, P and Korsch, W and Lerose, J and Lindgren, R and Lu,
HJ and Luo, W and Markowitz, P and Meekins, D and Meziane, M and Michaels,
R and Moffit, B and Monaghan, P and Muangma, N and Nanda, S and Norum, BE and Pan, K and Parno, D and Piasetzky, E and Posik, M and Punjabi, V and Puckett, AJR and Qian, X and Qiang, Y and Qui, X and Riordan, S and Saha,
A and Sawatzky, B and Shabestari, M and Shahinyan, A and Shoenrock, B and John, JS and Subedi, R and Tobias, WA and Tireman, W and Urciuoli, GM and Wang, D and Wang, K and Wang, Y and Watson, J and Wojtsekhowski, B and Ye,
Z and Zhan, X and Zhang, Y and Zheng, X and Zhao, B and Zhu,
L},
Title = {Extraction of the neutron electric form factor from
measurements of inclusive double spin asymmetries},
Journal = {Physical Review C},
Volume = {96},
Number = {6},
Publisher = {American Physical Society (APS)},
Year = {2017},
Month = {December},
url = {http://dx.doi.org/10.1103/PhysRevC.96.065206},
Abstract = {Background: Measurements of the neutron charge form factor,
GEn, are challenging because the neutron has no net charge.
In addition, measurements of the neutron form factors must
use nuclear targets which require accurately accounting for
nuclear effects. Extracting GEn with different targets and
techniques provides an important test of our handling of
these effects. Purpose: The goal of the measurement was to
use an inclusive asymmetry measurement technique to extract
the neutron charge form factor at a four-momentum transfer
of 1(GeV/c)2. This technique has very different systematic
uncertainties than traditional exclusive measurements and
thus serves as an independent check of whether nuclear
effects have been taken into account correctly. Method: The
inclusive quasielastic reaction 3He (e′) was measured at
Jefferson Laboratory. The neutron electric form factor, GEn,
was extracted at Q2=0.98(GeV/c)2 from ratios of
electron-polarization asymmetries measured for two
orthogonal target spin orientations. This Q2 is high enough
that the sensitivity to GEn is not overwhelmed by the
neutron magnetic contribution, and yet low enough that
explicit neutron detection is not required to suppress pion
production. Results: The neutron electric form factor, GEn,
was determined to be 0.0414±0.0077(stat)±0.0022(syst),
providing the first high-precision inclusive extraction of
the neutron's charge form factor. Conclusions: The use of
the inclusive quasielastic 3He (e′) with a four-momentum
transfer near 1(GeV/c)2 has been used to provide a unique
measurement of GEn. This new result provides a
systematically independent validation of the exclusive
extraction technique results and implies that the nuclear
corrections are understood. This is contrary to the proton
form factor where asymmetry and differential cross section
measurements have been shown to have large systematic
differences.},
Doi = {10.1103/PhysRevC.96.065206},
Key = {fds332007}
}
@article{fds355714,
Author = {Laskaris, G and Ji, W and Yan, X and Zhou, J and Zimmerman, WR and Ahmed,
MW and Averett, T and Deltuva, A and Fonseca, AC and Gao, H and Golak, J and Kafkarkou, A and Karwowski, HJ and Lalremruata, B and Manfredi, J and Mueller, JM and Sauer, PU and Skibiński, R and Smith, AP and Tsang, MB and Weller, HR and Witała, H and Wu, YK and Zhao, ZW},
Title = {First measurement of the asymmetry and the
Gerasimov-Drell-Hearn integrand from the He 3- (γ-,p) H 2
reaction at an incident photon energy of 29
MeV},
Journal = {Physical Review C},
Volume = {103},
Number = {3},
Year = {2021},
Month = {March},
url = {https://arxiv.org/abs/2010.14055},
Abstract = {The first measurement of the He3 - (γ - ,p)H2 process was
performed at the High Intensity γ-ray Source (HIγS)
facility at Triangle Universities Nuclear Laboratory using a
circularly polarized, monoenergetic γ-ray beam and a
longitudinally polarized He3 target. The spin-dependent
asymmetry and the contribution from the two-body
photodisintegration to the He3 Gerasimov-Drell-Hearn
integrand are extracted and compared with state-of-the-art
three-nucleon system calculations at the incident photon
energy of 29 MeV. The data are in general agreement with the
various theoretical predictions based on the Siegert theorem
or on explicit inclusion of meson-exchange
currents.},
Doi = {10.1103/PhysRevC.103.034311},
Key = {fds355714}
}
@article{fds333211,
Author = {Yan, X and Allada, K and Aniol, K and Annand, JRM and Averett, T and Benmokhtar, F and Bertozzi, W and Bradshaw, PC and Bosted, P and Camsonne, A and Canan, M and Cates, GD and Chen, C and Chen, JP and Chen,
W and Chirapatpimol, K and Chudakov, E and Cisbani, E and Cornejo, JC and Cusanno, F and Dalton, MM and Deconinck, W and De Jager and CW and De Leo,
R and Deng, X and Deur, A and Ding, H and Dolph, PAM and Dutta, C and Dutta,
D and El Fassi and L and Frullani, S and Gao, H and Garibaldi, F and Gaskell,
D and Gilad, S and Gilman, R and Glamazdin, O and Golge, S and Guo, L and Hamilton, D and Hansen, O and Higinbotham, DW and Holmstrom, T and Huang, J and Huang, M and Ibrahim, HF and Iodice, M and Jiang, X and Jin,
G and Jones, MK and Katich, J and Kelleher, A and Kim, W and Kolarkar, A and Korsch, W and Lerose, JJ and Li, X and Li, Y and Lindgren, R and Liu, T and Liyanage, N and Long, E and Lu, HJ and Margaziotis, DJ and Markowitz, P and Marrone, S and McNulty, D and Meziani, ZE and Michaels, R and Moffit, B and Muñoz Camacho and C and Nanda, S and Narayan, A and Nelyubin, V and Norum,
B and Oh, Y and Osipenko, M and Parno, D and Peng, JC and Phillips, SK and Posik, M and Puckett, AJR and Qian, X and Qiang, Y and Rakhman, A and Ransome, R and Riordan, S and Saha, A and Sawatzky, B and Schulte, E and Shahinyan, A and Shabestari, MH and Širca, S and Stepanyan, S and Subedi, R and Sulkosky, V and Tang, LG and Tobias, WA and Urciuoli,
GM},
Title = {First measurement of unpolarized semi-inclusive
deep-inelastic scattering cross sections from a He 3
target},
Journal = {Physical Review C},
Volume = {95},
Number = {3},
Publisher = {American Physical Society (APS)},
Year = {2017},
Month = {March},
url = {http://dx.doi.org/10.1103/PhysRevC.95.035209},
Abstract = {The unpolarized semi-inclusive deep-inelastic scattering
(SIDIS) differential cross sections in He3(e,e′π±)X have
been measured for the first time in Jefferson Lab experiment
E06-010 with a 5.9GeVe- beam on a He3 gas target. The
experiment focuses on the valence quark region, covering a
kinematic range 0.12<xbj<0.45,1<Q2<4(GeV/c)2,0.45<zh<0.65,
and 0.05<Pt<0.55GeV/c. The extracted SIDIS differential
cross sections of π± production are compared with existing
phenomenological models while the He3 nucleus approximated
as two protons and one neutron in a plane-wave picture, in
multidimensional bins. Within the experimental
uncertainties, the azimuthal modulations of the cross
sections are found to be consistent with
zero.},
Doi = {10.1103/PhysRevC.95.035209},
Key = {fds333211}
}
@article{fds246018,
Author = {Laskaris, G and Ye, Q and Lalremruata, B and Ye, QJ and Ahmed, MW and Averett, T and Deltuva, A and Dutta, D and Fonseca, AC and Gao, H and Golak, J and Huang, M and Karwowski, HJ and Mueller, JM and Myers, LS and Peng, C and Perdue, BA and Qian, X and Sauer, PU and Skibiński, R and Stave, S and Tompkins, JR and Weller, HR and Witała, H and Wu, YK and Zhang, Y and Zheng, W},
Title = {First measurements of spin-dependent double-differential
cross sections and the Gerasimov-Drell-Hearn Integrand from
3He(γ,n)pp at incident photon energies of 12.8 and 14.7
MeV.},
Journal = {Physical review letters},
Volume = {110},
Number = {20},
Pages = {202501},
Year = {2013},
Month = {May},
ISSN = {0031-9007},
url = {http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000319214800002&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=47d3190e77e5a3a53558812f597b0b92},
Abstract = {The first measurement of the three-body photodisintegration
of longitudinally polarized (3)He with a circularly
polarized γ-ray beam was carried out at the High Intensity
γ-ray Source facility located at Triangle Universities
Nuclear Laboratory. The spin-dependent double-differential
cross sections and the contributions from the three-body
photodisintegration to the (3)He Gerasimov-Drell-Hearn
integrand are presented and compared with state-of-the-art
three-body calculations at the incident photon energies of
12.8 and 14.7 MeV. The data reveal the importance of
including the Coulomb interaction between protons in
three-body calculations.},
Doi = {10.1103/physrevlett.110.202501},
Key = {fds246018}
}
@article{fds246020,
Author = {Ackerstaff, K and Airapetian, A and Akopov, N and Akushevich, I and Amarian, M and Aschenauer, EC and Avakian, H and Avakian, R and Avetissian, A and Bains, B and Baumgarten, C and Beckmann, M and Belostotski, S and Belz, JE and Benisch, T and Bernreuther, S and Bianchi, N and Blouw, J and Böttcher, H and Borissov, A and Brack, J and Brauksiepe, S and Braun, B and Bray, B and Brons, S and Brückner, W and Brüll, A and Bruins, EEW and Bulten, HJ and Cadman, RV and Capitani,
GP and Carter, P and Chumney, P and Cisbani, E and Court, GR and Dalpiaz,
PF and Sanctis, ED and Schepper, DD and Devitsin, E and de Witt Huberts,
PKA and Di Nezza and P and Düren, M and Dvoredsky, A and Elbakian, G and Fantoni, A and Fechtchenko, A and Ferstl, M and Fiedler, K and Filippone, BW and Fischer, H and Fox, B and Franz, J and Frullani, S and Funk, MA and Gagunashvili, ND and Gao, H and Gärber, Y and Garibaldi,
F and Gavrilov, G and Geiger, P and Gharibyan, V and Giordjian, V and Golendukhin, A and Graw, G and Grebeniouk, O and Green, PW and Greeniaus, LG and Grosshauser, C and Gute, A and Haeberli, W and Hansen,
JO and Hasch, D and Häusser, O and Henderson, R and Henkes, T and Henoch,
M and Hertenberger, R and Holler, Y and Holt, RJ and Hoprich, W and Ihssen,
H and Iodice, M and Izotov, A and Jackson, HE and Jgoun, A and Kaiser, R and Kinney, E and Kisselev, A and Kitching, P and Kobayashi, H and Koch, N and Königsmann, K and Kolstein, M and Kolster, H and Korotkov, V and Korsch, W and Kozlov, V and Kramer, LH and Krivokhijine, VG and Kurisuno, M},
Title = {Flavor asymmetry of the light quark sea from semi-inclusive
deep-inelastic scattering},
Journal = {Physical Review Letters},
Volume = {81},
Number = {25},
Pages = {5519-5523},
Publisher = {American Physical Society (APS)},
Year = {1998},
Month = {January},
ISSN = {0031-9007},
url = {http://dx.doi.org/10.1103/PhysRevLett.81.5519},
Abstract = {The flavor asymmetry of the light quark sea of the nucleon
is determined in the kinematic range 0.02 < x < 0.3 and 1 <
Q2 < 10GeV2 for the first time from semi-inclusive
deep-inelastic scattering. The quantity [d¯(x)-
¯u(x)]/[u(x)-d(x)] is derived from a relationship between
the yields of positive and negative pions from unpolarized
hydrogen and deuterium targets. The flavor asymmetry d¯ -
u¯ is found to be nonzero and x dependent, showing an
excess of d¯ over u¯ quarks in the proton. © 1998 The
American Physical Society.},
Doi = {10.1103/PhysRevLett.81.5519},
Key = {fds246020}
}
@article{fds246130,
Author = {H. Gao and Ackerstaff, K and Airapetian, A and Akopov, N and Akushevich, I and Amarian, M and Aschenauer, EC and Avakian, H and Avakian, R and Avetissian, A and Bains, B and Barrow, S and Baumgarten, C and Beckmann,
M and Belostotski, S and Belz, JE and Benisch, T and Bernreuther, S and Bianchi, N and Blanchard, S and Blouw, J and Böttcher, H and Borissov,
A and Brack, J and Bray, B and Brauksiepe, S and Braun, B and Brons, S and Brückner, W and Brüll, A and Bruins, EEW and Bulten, HJ and Cadman,
RV and Capitani, GP and Carter, P and Chumney, P and Cisbani, E and Court,
GR and Dalpiaz, PF and de Leo, R and Delheij, PPJ and de Sanctis, E and de
Schepper, D and Devitsin, E and de Witt Huberts and PKA and di Nezza, P and Düren, M and Dvoredsky, A and Ely, J and Elbakian, G and Emerson, J and Fantoni, A and Fechtchenko, A and Ferstl, M and Fick, D and Fiedler, K and Filippone, BW and Fischer, H and Fortune, HT and Fox, B and Frabetti, S and Franz, J and Frullani, S and Funk, MA and Gagunashvili, ND and Galumian,
P and Gao, H and Gärber, Y and Garibaldi, F and Gavrilov, G and Geiger, P and Gharibyan, V and Golendukhin, A and Graw, G and Grebeniouk, O and Green,
PW and Greeniaus, LG and Grosshauser, C and Guidal, M and Gute, A and Gyurjyan, V and Haas, JP and Haeberli, W and Hansen, JO and Hasch, D and Häusser, O and Henderson, R and Heinsius, FH and Henkes, T and Henoch,
M and Hertenberger, R and Holler, Y and Holt, RJ and Hoprich, W and Ihssen,
H and Iodice, M and Izotov, A and Jackson, HE and Jgoun, A and Jones, C and Kaiser, R},
Title = {Flavor decomposition of the polarized quark distributions in
the nucleon from inclusive and semi-inclusive deep-inelastic
scattering},
Journal = {Physics Letters, Section B: Nuclear, Elementary Particle and
High-Energy Physics},
Volume = {464},
Number = {1-2},
Pages = {123-134},
Publisher = {Elsevier BV},
Year = {1999},
Month = {January},
ISSN = {0370-2693},
url = {http://dx.doi.org/10.1016/S0370-2693(99)00964-8},
Abstract = {Spin asymmetries of semi-inclusive cross sections for the
production of positively and negatively charged hadrons have
been measured in deep-inelastic scattering of polarized
positrons on polarized hydrogen and He targets, in the
kinematic range 0.023 < x < 0.6 and 1 GeV2 < Q2 < 10 GeV2.
Polarized quark distributions are extracted as a function of
x for up (u + ū) and down (d + d̄) flavors. The up quark
polarization is positive and the down quark polarization is
negative in the measured range. The polarization of the sea
is compatible with zero. The first moments of the polarized
quark distributions are presented. The isospin non-singlet
combination Δq3 is consistent with the prediction based on
the Bjorken sum rule. The moments of the polarized quark
distributions are compared to predictions based on SU(3)f
flavor symmetry and to a prediction from lattice QCD. ©
1999 Published by Elsevier Science B.V. All rights
reserved.},
Doi = {10.1016/S0370-2693(99)00964-8},
Key = {fds246130}
}
@article{fds246080,
Author = {Gao, H and Chen, JP and Huang, M and Qian, X},
Title = {Future (transverse) spin physics at Jefferson
Lab},
Journal = {Journal of Physics: Conference Series},
Volume = {295},
Number = {1},
Pages = {012019-012019},
Publisher = {IOP Publishing},
Year = {2011},
Month = {January},
ISSN = {1742-6588},
url = {http://dx.doi.org/10.1088/1742-6596/295/1/012019},
Abstract = {The studies of GPDs and TMDs with polarizations at 6 GeV at
Jefferson Lab have already shown great promises. The 12-GeV
spin program will significantly advance our knowledge about
the three-dimensional structure of the nucleon in the
valence quark region, and the QCD dynamics responsible for
the structure. With the possibility of a future electron ion
collider with polarized beams, the next frontier of QCD will
be reached. This proceeding paper will focus on future
studies of TMDs using polarizations.},
Doi = {10.1088/1742-6596/295/1/012019},
Key = {fds246080}
}
@booklet{Gao96a,
Author = {Gao, H and Holt, RJ and Pandharipande, VR},
Title = {gamma n --> pi(-)p process in He-4 and O-16},
Journal = {Physical Review C},
Volume = {54},
Number = {5},
Pages = {2779-2782},
Year = {1996},
Month = {November},
Key = {Gao96a}
}
@article{fds246106,
Author = {Zheng, W and Gao, H and Liu, JG and Zhang, Y and Ye, Q and Swank,
C},
Title = {General solution to gradient-induced transverse and
longitudinal relaxation of spins undergoing restricted
diffusion},
Journal = {Physical Review A - Atomic, Molecular, and Optical
Physics},
Volume = {84},
Number = {5},
Pages = {053411},
Publisher = {American Physical Society (APS)},
Year = {2011},
Month = {November},
ISSN = {1050-2947},
url = {http://dx.doi.org/10.1103/PhysRevA.84.053411},
Abstract = {We develop an approach, by calculating the autocorrelation
function of spins, to derive the magnetic field
gradient-induced transverse (T2) relaxation of spins
undergoing restricted diffusion. This approach is an
extension to the method adopted by McGregor. McGregor's
approach solves the problem only in the fast diffusion
limit; however, our approach yields a single analytical
solution suitable in all diffusion regimes, including the
intermediate regime. This establishes a direct connection
between the well-known slow diffusion result of Torrey and
the fast diffusion result. We also perform free induction
decay measurements on spin-exchange optically polarized 3He
gas with different diffusion constants. The measured
transverse relaxation profiles are compared with the theory
and satisfactory agreement has been found throughout all
diffusion regimes. In addition to the transverse relaxation,
this approach is also applicable to solving the longitudinal
relaxation (T 1) regardless of the diffusion limits. It
turns out that the longitudinal relaxation in the slow
diffusion limit differs by a factor of 2 from that in the
fast diffusion limit. © 2011 American Physical
Society.},
Doi = {10.1103/PhysRevA.84.053411},
Key = {fds246106}
}
@article{fds246137,
Author = {Dutta, D and Gao, H},
Title = {Generalized counting rule and oscillatory
scaling},
Journal = {Physical Review C - Nuclear Physics},
Volume = {71},
Number = {3},
Publisher = {American Physical Society (APS)},
Year = {2005},
Month = {January},
ISSN = {0556-2813},
url = {http://dx.doi.org/10.1103/PhysRevC.71.032201},
Abstract = {We studied the energy dependence of the pp elastic
scattering data and the pion-photoproduction data at a 90°
c.m. angle in light of the new generalized counting rale
derived for exclusive processes. We show that by including
the helicity-nonconserving amplitudes and their interference
with the Landshoff amplitude, we are able to reproduce the
energy dependence of all the pp elastic cross-section and
spin-correlation (AN N) data available above the resonance
region. The pion-photoproduction data can also be described
by this approach; however, data with much finer energy
spacing are needed to confirm the oscillations about the
scaling behavior. This study strongly suggests an important
role for helicity-nonconserving amplitudes related to the
quark orbital angular momentum and for the interference of
these amplitudes with the Landshoff amplitude at GeV
energies. © 2005 The American Physical Society.},
Doi = {10.1103/PhysRevC.71.032201},
Key = {fds246137}
}
@article{fds246083,
Author = {Gao, H},
Title = {Hadron physics at low energies},
Journal = {European Physical Journal: Special Topics},
Volume = {198},
Number = {1},
Pages = {3-17},
Publisher = {Springer Nature},
Year = {2011},
Month = {September},
ISSN = {1951-6355},
url = {http://dx.doi.org/10.1140/epjst/e2011-01480-5},
Abstract = {Understanding how quantum chromodynamics, the theory of
strong interaction, works in the low-energy region, the
so-called confinement region is one of the major challenges
facing physicists. Low energy hadron physics, particularly
the structure of hadron is one of the most active areas of
research in nuclear physics addressing this challenge. In
this talk, I will review advances made in this area on a few
selected topics in the last decade or so and also provide
outlook for the future. © 2011 EDP Sciences and
Springer.},
Doi = {10.1140/epjst/e2011-01480-5},
Key = {fds246083}
}
@article{fds246159,
Author = {al, KSE},
Title = {He-3 Spin-Dependent Cross Sections and Sum
Rules},
Journal = {Physical Review Letters},
Volume = {101},
Number = {2},
Pages = {022303},
Year = {2008},
ISSN = {0031-9007},
url = {http://dx.doi.org/10.1103/physrevlett.101.022303},
Abstract = {We present a measurement of the spin-dependent cross
sections for the 3He over -->(e over -->,e')X reaction in
the quasielastic and resonance regions at a four-momentum
transfer 0.1< or =Q2< or =0.9 GeV2. The spin-structure
functions have been extracted and used to evaluate the
nuclear Burkhardt-Cottingham and extended
Gerasimov-Drell-Hearn sum rules for the first time. The data
are also compared to an impulse approximation calculation
and an exact three-body Faddeev calculation in the
quasielastic region.},
Doi = {10.1103/physrevlett.101.022303},
Key = {fds246159}
}
@article{fds246150,
Author = {H. Gao and al, ESE},
Title = {High energy angular distribution measurements of the
exclusive deuteron photodisintegration reaction},
Journal = {Phys Rev C},
Volume = {66},
Number = {4},
Pages = {042201R},
Publisher = {American Physical Society (APS)},
Year = {2002},
ISSN = {0556-2813},
url = {http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000179103500007&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=47d3190e77e5a3a53558812f597b0b92},
Abstract = {The first complete measurements of the angular distributions
of the two-body deuteron photodisintegration differential
cross section at photon energies above 1.6 GeV were
performed at the Thomas Jefferson National Accelerator
Facility. The results show a persistent forward-backward
asymmetry up to Eγ = 2.4 GeV, the highest-energy measured
in this experiment. The Hard Rescattering and the
Quark-Gluon string models are in fair agreement with the
results.},
Doi = {10.1103/PhysRevC.66.042201},
Key = {fds246150}
}
@article{fds346529,
Author = {Ambrozewicz, P and Ye, L and Prok, Y and Larin, I and Ahmidouch, A and Baker, K and Baturin, V and Benton, L and Bernstein, A and Burkert, V and Clinton, E and Cole, PL and Collins, P and Dale, D and Danagoulian, S and Davidenko, G and Demirchyan, R and Deur, A and Dolgolenko, A and Dutta,
D and Dzyubenko, G and Evdokimov, A and Fedotov, G and Feng, J and Gabrielyan, M and Gan, L and Gao, H and Gasparian, A and Gevorkyan, N and Gevorkyan, S and Glamazdin, A and Goryachev, V and Guo, L and Gyurjyan,
V and Hardy, K and He, J and Isupov, E and Ito, MM and Jiang, L and Kang, H and Kashy, D and Khandaker, M and Kingsberry, P and Klein, F and Kolarkar,
A and Konchatnyi, M and Korchin, O and Korsch, W and Kosinov, O and Kowalski, S and Kubantsev, M and Kubarovsky, A and Kubarovsky, V and Lawrence, D and Li, X and Levillain, M and Lu, H and Ma, L and Martel, P and Matveev, V and McNulty, D and Mecking, B and Micherdzinska, A and Milbrath, B and Minehart, R and Miskimen, R and Mochalov, V and Morrison, B and Mtingwa, S and Nakagawa, I and Overby, S and Pasyuk, E and Payen, M and Park, K and Pedroni, R and Phelps, W and Protopopescu, D and Rimal, D and Ritchie, BG and Romanov, D and Salgado, C and Shahinyan, A and Sitnikov, A and Sober, D and Stepanyan, S and Stephens, W and Tarasov,
V and Taylor, S and Teymurazyan, A and Underwood, J and Vasiliev, A and Vishnyakov, V and Weygand, DP and Wood, M and Zhang, Y and Zhou, S and Zihlmann, B},
Title = {High precision measurement of Compton scattering in the 5
GeV region},
Journal = {Physics Letters, Section B: Nuclear, Elementary Particle and
High-Energy Physics},
Volume = {797},
Year = {2019},
Month = {October},
url = {http://dx.doi.org/10.1016/j.physletb.2019.134884},
Abstract = {The cross section of atomic electron Compton scattering
γ+e→γ′+e′ was measured in the 4.400–5.475 GeV
photon beam energy region by the PrimEx collaboration at
Jefferson Lab with an accuracy of 2.6% and less. The results
are consistent with theoretical predictions that include
next-to-leading order radiative corrections. The
measurements provide the first high precision test of this
elementary QED process at beam energies greater than 0.1
GeV.},
Doi = {10.1016/j.physletb.2019.134884},
Key = {fds346529}
}
@article{fds304558,
Author = {Meziani, ZE and Melnitchouk, W and Chen, JP and Choi, S and Averett, T and Gates, G and De Jager and CW and Deur, A and Gao, H and Garibaldi, F and Gilman, R and Hughes, EW and Jiang, X and Korsch, W and Kramer, K and Liyanage, N and Slifer, K and Yang, JC},
Title = {Higher twists and color polarizabilities in the
neutron},
Journal = {Physics Letters, Section B: Nuclear, Elementary Particle and
High-Energy Physics},
Volume = {613},
Number = {3-4},
Pages = {148-153},
Publisher = {Elsevier BV},
Year = {2005},
Month = {May},
url = {http://dx.doi.org/10.1016/j.physletb.2005.03.046},
Abstract = {Color polarizabilities of the neutron are extracted from
data on the lowest moment of the spin-dependent g1 structure
function. New data in the resonance region from Jefferson
Lab at Q2≲1 GeV2, in combination with world data at higher
Q2, allow a systematic determination of the 1/Q2
corrections, and provide the first constraints on 1/Q4
corrections. The results suggest that higher-twist effects
in the neutron are small, and that quark-hadron duality may
be approximately valid, even down to Q2∼1 GeV2. © 2005
Elsevier B.V. All rights reserved.},
Doi = {10.1016/j.physletb.2005.03.046},
Key = {fds304558}
}
@article{fds246167,
Author = {H. Gao and Meziani, Z-E and Gao, EAIH},
Title = {Higher twists and Color Polarizabilities in the
Neutron},
Journal = {Physical Letters},
Volume = {B},
Number = {613},
Pages = {148},
Year = {2005},
url = {http://dx.doi.org/10.1016/j.physletb.2005.03.046},
Abstract = {Color polarizabilities of the neutron are extracted from
data on the lowest moment of the spin-dependent g1 structure
function. New data in the resonance region from Jefferson
Lab at Q2≲1 GeV2, in combination with world data at
higher Q2, allow a systematic determination of the 1/Q2
corrections, and provide the first constraints on 1/Q4
corrections. The results suggest that higher-twist effects
in the neutron are small, and that quark-hadron duality may
be approximately valid, even down to Q2∼1 GeV2. ©
2005 Elsevier B.V. All rights reserved.},
Doi = {10.1016/j.physletb.2005.03.046},
Key = {fds246167}
}
@article{fds368413,
Author = {Baym, G and Aprahamian, A and Aidala, C and Braun-Munzinger, P and Gao,
H and Hafidi, K and Haxton, W and Jowett, J and McLerran, L and Merminga,
L and Meziani, Z-E and Milner, R and Schaefer, T and Sichtermann, E and Turner, M and Jacak, BV and Loeb, A and DiMauro, L and DiSalvo, FJ and Fisch, NJ and Fisher, D and Freedman, W and Heckman, T and Hill, WTIII and Hurd, AJ and Jones, B and Lankford, A and Page, LAJ and Ritz,
SM},
Title = {Impact of an Electron-Ion Collider on Other
Fields},
Pages = {105-118},
Booktitle = {ASSESSMENT OF U.S.-BASED ELECTRON-ION COLLIDER
SCIENCE},
Year = {2018},
ISBN = {978-0-309-47856-4},
Key = {fds368413}
}
@booklet{Arrington96,
Author = {Arrington, J and Anthony, P and Arnold, RG and Beise, EJ and Belz, JE and Bosted, PE and Bulten, HJ and Chapman, MS and Coulter, KP and Dietrich,
F and Ent, R and Epstein, M and Filippone, BW and Gao, H and Gearhart, RA and Geesama, DF},
Title = {Inclusive electron scattering from nuclei at x similar or
equal to 1},
Journal = {Physical Review C},
Volume = {53},
Number = {5},
Pages = {2248-2251},
Year = {1996},
Month = {May},
url = {http://dx.doi.org/10.1103/PhysRevC.53.2248},
Abstract = {The inclusive A(e,e′) cross section for x≃1 was
measured on 2H, C, Fe, and Au for momentum transfers Q2 from
1 to 6.8 (GeV/c)2. The scaling behavior of the data was
examined in the region of transition from y scaling to x
scaling. Throughout this transitional region, the data
exhibit ξ scaling, reminiscent of the Bloom-Gilman
duality seen in free nucleon scattering.},
Doi = {10.1103/PhysRevC.53.2248},
Key = {Arrington96}
}
@article{fds304562,
Author = {Arrington, J and Anthony, P and Arnold, RG and Beise, EJ and Belz, JE and Bosted, PE and Bulten, HJ and Chapman, MS and Coulter, KP and Dietrich,
F and Ent, R and Epstein, M and Filippone, BW and Gao, H and Gearhart, RA and Geesaman, DF and Hansen, JO and Holt, RJ and Jackson, HE and Jones, CE and Keppel, CE and Kinney, ER and Kuhn, S and Lee, K and Lorenzon, W and Lung,
A and Makins, NCR and Margaziotis, DJ and McKeown, RD and Milner, RG and Mueller, B and Napolitano, J and Nelson, J and O'Neill, TG and Papavassiliou, V and Petratos, GG and Potterveld, DH and Rock, SE and Spengos, M and Szalata, ZM and Tao, LH and Van Bibber and K and Van Den
Brand and JFJ and White, JL and Winter, D and Zeidman,
B},
Title = {Inclusive electron scattering from nuclei at
x≃1},
Journal = {Physical Review C - Nuclear Physics},
Volume = {53},
Number = {5},
Pages = {2248-2251},
Publisher = {American Physical Society (APS)},
Year = {1996},
Month = {January},
url = {http://dx.doi.org/10.1103/PhysRevC.53.2248},
Abstract = {The inclusive A(e,e′) cross section for x≃1 was measured
on 2H, C, Fe, and Au for momentum transfers Q2 from 1 to 6.8
(GeV/c)2. The scaling behavior of the data was examined in
the region of transition from y scaling to x scaling.
Throughout this transitional region, the data exhibit ξ
scaling, reminiscent of the Bloom-Gilman duality seen in
free nucleon scattering.},
Doi = {10.1103/PhysRevC.53.2248},
Key = {fds304562}
}
@article{fds363066,
Author = {Springer, R and Ahmed, M and Howell, C and phillips, D and Griesshammer,
H and Wu, Y},
Title = {International Workshop on Next Generation Gamma-Ray
Source},
Journal = {Journal of Physics G: Nuclear and Particle
Physics},
Volume = {49},
Publisher = {IOP Publishing},
Year = {2021},
Month = {December},
Key = {fds363066}
}
@article{fds246099,
Author = {Chu, PH and Gao, H and others},
Title = {Laboratory Search for Spin-dependent Short-range Force from
Axion-Like-Particles using Optically Polarized 3He
gas},
Journal = {Phys. Rev. Lett.},
Volume = {87},
Number = {1},
Pages = {011105R},
Publisher = {American Physical Society (APS)},
Year = {2012},
Month = {December},
ISSN = {1550-7998},
url = {http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000314336400001&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=47d3190e77e5a3a53558812f597b0b92},
Abstract = {The possible existence of short-range forces between
unpolarized and polarized spin-12 particles has attracted
the attention of physicists for decades. These forces are
predicted in various theories and provide a possible new
source for parity and time-reversal symmetry violation. We
use an ensemble of polarized He3 gas in a cell with a
250-μm thick glass window to search for a force from
pseudoscalar boson exchange over sub-millimeter ranges. This
interaction would produce an NMR frequency shift as an
unpolarized mass is moved near and far from the polarized
ensemble. We report a new upper bound with a factor of 10-30
improvement on the product gsgpn of the scalar couplings to
the fermions in the unpolarized mass, and the pseudoscalar
coupling of the polarized neutron in the He3 nucleus for
force ranges from 10 -4 to 10-2 m, which corresponds to a
mass range of 2×10-3 to 2×10-5 eV for the pseudoscalar
boson. This represents the most sensitive search that sets a
direct limit on the important "axion window." © 2013
American Physical Society.},
Doi = {10.1103/PhysRevD.87.011105},
Key = {fds246099}
}
@article{fds246121,
Author = {H. Gao and al, LCAE},
Title = {Large momentum transfer measurements of the deuteron elastic
structure function A(Q$^2$) at Jefferson
Laboratory},
Journal = {Physical Review Letters},
Volume = {82},
Number = {1374},
Year = {1999},
Key = {fds246121}
}
@article{fds246126,
Author = {Seely, J and Crawford, C and Clasie, B and Xu, W and Dutta, D and Gao,
H},
Title = {Laser-driven nuclear-polarized hydrogen internal gas
target},
Journal = {Physical Review A - Atomic, Molecular, and Optical
Physics},
Volume = {73},
Number = {6},
Pages = {062714},
Publisher = {American Physical Society (APS)},
Year = {2006},
Month = {June},
ISSN = {1050-2947},
url = {http://dx.doi.org/10.1103/PhysRevA.73.062714},
Abstract = {We report the performance of a laser-driven polarized
internal hydrogen gas target (LDT) in a configuration
similar to that used in scattering experiments. This target
used the technique of spin-exchange optical pumping to
produce nuclear spin polarized hydrogen gas that was fed
into a cylindrical storage (target) cell. We present in this
paper the performance of the target, methods that were tried
to improve the figure-of-merit (FOM) of the target, and a
Monte Carlo simulation of spin-exchange optical pumping. The
dimensions of the apparatus were optimized using the
simulation and the experimental results were in good
agreement with the results from the simulation. The best
experimental result achieved was at a hydrogen flow rate of
1.1× 1018 atomss, where the sample beam exiting the storage
cell had 58.2% degree of dissociation and 50.5%
polarization. Based on this measurement, the atomic fraction
in the storage cell was 49.6% and the density averaged
nuclear polarization was 25.0%. This represents the highest
FOM for hydrogen from an LDT and is higher than the best FOM
reported by atomic beam sources that used storage cells. ©
2006 The American Physical Society.},
Doi = {10.1103/PhysRevA.73.062714},
Key = {fds246126}
}
@article{fds246058,
Author = {Clasie, B and Crawford, C and Dutta, D and Gao, H and Seely, J and Xu,
W},
Title = {Laser-driven polarized H/D sources and targets},
Journal = {Nuclear Instruments and Methods in Physics Research, Section
A: Accelerators, Spectrometers, Detectors and Associated
Equipment},
Volume = {536},
Number = {3},
Pages = {260-265},
Publisher = {Elsevier BV},
Year = {2005},
Month = {January},
ISSN = {0168-9002},
url = {http://dx.doi.org/10.1016/j.nima.2004.08.082},
Abstract = {Traditionally, Atomic Beam Sources are used to produce
targets of nuclear polarized hydrogen (H) or deuterium (D)
for experiments using storage rings. Laser-Driven Sources
(LDSs) offer a factor of 20-30 gain in the target thickness
(however, with lower polarization) and may produce a higher
overall figure of merit. The LDS is based on the technique
of spin-exchange optical pumping where alkali vapor is
polarized by absorbing circularly polarized laser photons.
The H or D atoms are nuclear-polarized through spin-exchange
collisions with the polarized alkali vapor and through
subsequent hyperfine interactions during frequent H-H or D-D
collisions. © 2004 Elsevier B.V. All rights
reserved.},
Doi = {10.1016/j.nima.2004.08.082},
Key = {fds246058}
}
@article{fds246128,
Author = {Clasie, B and Crawford, C and Seely, J and Xu, W and Dutta, D and Gao,
H},
Title = {Laser-driven target of high-density nuclear-polarized
hydrogen gas},
Journal = {Physical Review A - Atomic, Molecular, and Optical
Physics},
Volume = {73},
Number = {2},
Publisher = {American Physical Society (APS)},
Year = {2006},
Month = {January},
url = {http://dx.doi.org/10.1103/PhysRevA.73.020703},
Abstract = {We report the best figure-of-merit achieved for an internal
nuclear polarized hydrogen gas target and a Monte Carlo
simulation of spin-exchange optical pumping. The dimensions
of the apparatus were optimized using the simulation, and
the experimental results were in good agreement with the
simulation. The best result achieved for this target was
50.5% polarization with 58.2% degree of dissociation of the
sample beam exiting the storage cell at a hydrogen flow rate
of 1.1× 1018 atomss. © 2006 The American Physical
Society.},
Doi = {10.1103/PhysRevA.73.020703},
Key = {fds246128}
}
@article{fds318443,
Author = {Gao, H and Laskaris, G and Yan, X},
Title = {Latest results on few-body physics from HIγS},
Journal = {Proceedings of Science},
Volume = {29-June-2015},
Year = {2015},
Month = {January},
Abstract = {In this talk we discuss the recently completed and upcoming
experiments on few-nucleon targets at the High Intensity
g-ray Source (HIγS) facility located at Triangle
Universities Nuclear Laboratory (TUNL). Several experiments
took place or are planned in order to measure the Gerasimov-
Drell-Hearn sum rule integrand on various light nuclei below
pion production threshold and extract information on the
electromagnetic structure and spin polarizabilities of the
nucleon. In this paper we focus more on the
photodisintegration and Compton scattering experiments on
polarized 3He at the HIγS facility.},
Key = {fds318443}
}
@article{fds373919,
Author = {Zhou, J and Khachatryan, V and Akushevich, I and Gao, H and Ilyichev, A and Peng, C and Srednyak, S and Xiong, W},
Title = {Lowest-order QED radiative corrections in unpolarized
elastic electron–deuteron scattering beyond the
ultra-relativistic limit for the proposed deuteron charge
radius measurement at Jefferson laboratory},
Journal = {European Physical Journal A},
Volume = {59},
Number = {11},
Year = {2023},
Month = {November},
url = {http://dx.doi.org/10.1140/epja/s10050-023-01174-6},
Abstract = {Analogous to the well-known proton charge radius puzzle, a
similar puzzle exists for the deuteron charge radius, rd .
There are discrepancies observed in the results of rd ,
measured from electron-deuteron (e- d) scattering
experiments, as well as from atomic spectroscopy. In order
to help resolve the charge radius puzzle of the deuteron,
the PRad collaboration at Jefferson Lab has proposed an
experiment for measuring rd , named DRad. This experiment is
designed to measure the unpolarized elastic e- d scattering
cross section in a low- Q2 region. To extract the cross
section with a high precision, having reliable knowledge of
QED radiative corrections is important. In this paper, we
present complete numerical calculations of the lowest-order
radiative corrections in e- d scattering for the DRad
kinematics. The calculations have been performed within a
covariant formalism and beyond the ultra-relativistic
approximation (me2≪Q2). Besides, we present a systematic
uncertainty on rd arising from higher-order radiative
corrections, estimated based on our cross-section
results.},
Doi = {10.1140/epja/s10050-023-01174-6},
Key = {fds373919}
}
@article{fds246005,
Author = {Zhang, Y and Qian, X and Allada, K and Dutta, C and Huang, J and Katich, J and Wang, Y and Aniol, K and Annand, JRM and Averett, T and Benmokhtar, F and Bertozzi, W and Bradshaw, PC and Bosted, P and Camsonne, A and Canan, M and Cates, GD and Chen, C and Chen, JP and Chen, W and Chirapatpimol, K and Chudakov, E and Cisbani, E and Cornejo, JC and Cusanno, F and Dalton,
MM and Deconinck, W and De Jager and CW and De Leo and R and Deng, X and Deur, A and Ding, H and Dolph, PAM and Dutta, D and El Fassi and L and Frullani, S and Gao, H and Garibaldi, F and Gaskell, D and Gilad, S and Gilman, R and Glamazdin, O and Golge, S and Guo, L and Hamilton, D and Hansen, O and Higinbotham, DW and Holmstrom, T and Huang, M and Ibrahim, HF and Iodice, M and Jiang, X and Jin, G and Jones, MK and Kelleher, A and Kim, W and Kolarkar, A and Korsch, W and Lerose, JJ and Li, X and Li, Y and Lindgren,
R and Liyanage, N and Long, E and Lu, HJ and Margaziotis, DJ and Markowitz,
P and Marrone, S and McNulty, D and Meziani, ZE and Michaels, R and Moffit,
B and Muñoz Camacho and C and Nanda, S and Narayan, A and Nelyubin, V and Norum, B and Oh, Y and Osipenko, M and Parno, D and Peng, JC and Phillips,
SK and Posik, M and Puckett, AJR and Qiang, Y and Rakhman, A and Ransome,
RD and Riordan, S and Saha, A and Sawatzky, B and Schulte, E and Shahinyan,
A and Shabestari, MH and Širca, S and Stepanyan, S and Subedi, R and Sulkosky, V and Tang, LG and Tobias, WA and Urciuoli,
GM},
Title = {Measurement of "pretzelosity" asymmetry of charged pion
production in semi-inclusive deep inelastic scattering on a
polarized He 3 target},
Journal = {Physical Review C - Nuclear Physics},
Volume = {90},
Number = {5},
Publisher = {American Physical Society (APS)},
Year = {2014},
Month = {November},
ISSN = {0556-2813},
url = {http://dx.doi.org/10.1103/PhysRevC.90.055209},
Abstract = {An experiment to measure single-spin asymmetries of
semi-inclusive production of charged pions in deep-inelastic
scattering on a transversely polarized He3 target was
performed at Jefferson Laboratory in the kinematic region of
0.16<x<0.35 and 1.4<Q2<2.7 GeV2. Pretzelosity asymmetries on
He3, which are expressed as the convolution of the h1T⊥
transverse-momentum-dependent distribution functions and the
Collins fragmentation functions in the leading order, were
measured for the first time. Under the effective
polarization approximation, we extracted the corresponding
neutron asymmetries from the measured He3 asymmetries and
cross-section ratios between the proton and He3. Our results
show that both π± on He3 and on neutron pretzelosity
asymmetries are consistent with zero within experimental
uncertainties.},
Doi = {10.1103/PhysRevC.90.055209},
Key = {fds246005}
}
@article{fds304544,
Author = {Ackerstaff, K and Airapetian, A and Akopov, N and Amarian, M and Aschenauer, EC and Avakian, H and Avakian, R and Avetissian, A and Bains, B and Beckmann, M and Belostotski, S and Belz, JE and Benisch, T and Bernreuther, S and Bianchi, N and Blanchard, S and Blouw, J and Böttcher, H and Borissov, A and Brack, J and Braun, B and Bray, B and Brückner, W and Brüll, A and Bruins, EEW and Bulten, HJ and Capitani,
GP and Carter, P and Cisbani, E and Court, GR and Delheij, PPJ and Sanctis,
ED and Schepper, DD and Devitsin, E and Huberts, PKADW and Düren, M and Dvoredsky, A and Elbakian, G and Emerson, J and Fantoni, A and Fechtchenko, A and Ferstl, M and Fiedler, K and Filippone, BW and Fischer, H and Fox, B and Franz, J and Frullani, S and Funk, M-A and Gärber, Y and Gagunashvili, ND and Galumian, P and Gao, H and Garibaldi, F and Gavrilov, G and Geiger, P and Gharibyan, V and Golendukhin, A and Graw, G and Grebeniouk, O and Green, PW and Greeniaus, LG and Grosshauser, C and Gute, A and Gyurjyan, V and Haas,
JP and Haeberli, W and Häusser, O and Hansen, J-O and Hasch, D and Henderson, R and Henkes, T and Hertenberger, R and Holler, Y and Holt,
RJ and Ihssen, H and Iodice, M and Izotov, A and Jackson, HE and Jgoun, A and Jones, C and Kaiser, R and Kinney, E and Kirsch, M and Kisselev, A and Kitching, P and Königsmann, K and Kolstein, M and Kolster, H and Korsch, W and Kozlov, V and Kramer, LH and Krause, B and Krivokhijine,
VG and Kückes, M and Kyle, G and Lachnit, W and Lorenzon, W and Lung, A and Makins, NCR and Manaenkov, SI and Martens, FK and Martin, JW and Mateos,
A and Mcllhany, K and McKeown, RD and Meissner, F and Menden, F and Mercer,
D and Metz, A and Meyners, N and Mikloukho, O and Miller, CA and Miller,
MA and Milner, R and Mitsyn, V and Most, A and Mozzetti, R and Muccifora,
V and Nagaitsev, A and Naryshkin, Y and Nathan, AM and Neunreither, F and Niczyporuk, JM and Nowak, W-D and Nupieri, M and Oelwein, P and Ogami,
H and O'Neill, TG and Openshaw, R and Ouyang, J and Pate, SF and Pitt, M and Poolman, HR and Potashov, S and Potterveld, DH and Rakness, G and Redwine, R and Reolon, AR and Ristinen, R and Rith, K and Röper, G and Roloff, HO and Rossi, P and Ruh, M and Ryckbosch, D and Sakemi, Y and Savin, I and Schüler, KP and Schwind, A and Shibata, T-A and Shin, T and Simon, A and Sinram, K and Smythe, WR and Sowinski, J and Spengos, M and Steffens, E and Stenger, J and Stewart, J and Stock, F and Stösslein,
U and Sutter, M and Tallini, H and Taroian, S and Terkulov, A and Thiessen,
DM and Tipton, B and Trudel, A and Tytgat, M and Urciuoli, GM and Brand,
JFJVD and Steenhoven, GVD and Vyver, RVD and Vetterli, MC and Vincter,
MG and Volk, E and Wander, W and Welch, TP and Williamson, SE and Wise, T and Zapfe, K and Zohrabian, H},
Title = {Measurement of angular distributions and R =
σL/σT in diffractive
electroproduction of ρ0 mesons},
Journal = {European Physical Journal C},
Volume = {18},
Number = {2},
Pages = {303-316},
Year = {2000},
ISSN = {1434-6044},
Abstract = {Production and decay angular distributions were extracted
from measurements of exclusive electroproduction of the
ρ0(770) meson over a range in the virtual photon negative
four-momentum squared 0.5 < Q2 < 4 GeV2 and the
photon-nucleon invariant mass range 3.8 < W < 6.5 GeV.
The experiment was performed with the HERMES spectrometer,
using a longitudinally polarized positron beam and a 3He gas
target internal to the HERA e± storage ring. The event
sample combines ρ0 mesons produced incoherently off
individual nucleons and coherently off the nucleus as a
whole. The distributions in one production angle and two
angles describing the ρ0 → π+π- decay yielded
measurements of eight elements of the spin-density matrix,
including one that had not been measured before. The results
are consistent with the dominance of helicity conserving
amplitudes and natural parity exchange. The improved
precision achieved at 4 < W < 7 GeV, in combination
with other data at W > 7 GeV, reveals evidence for an
energy dependence in the ratio R of the longitudinal to
transverse cross sections at constant Q2.},
Key = {fds304544}
}
@article{fds246131,
Author = {H. Gao and al, KAE},
Title = {Measurement of angular distributions and R=o(L)/o(T) in
diffractive electroproduction of RhoO mesons},
Journal = {Eur. Phys. J. C},
Volume = {18},
Number = {2},
Pages = {303-316},
Publisher = {Springer Nature},
Year = {2000},
ISSN = {1434-6044},
url = {http://dx.doi.org/10.1007/s100520000536},
Abstract = {Production and decay angular distributions were extracted
from measurements of exclusive electroproduction of the
ρ0(770) meson over a range in the virtual photon negative
four-momentum squared 0.5 < Q2 < 4 GeV2 and the
photon-nucleon invariant mass range 3.8 < W < 6.5 GeV. The
experiment was performed with the HERMES spectrometer, using
a longitudinally polarized positron beam and a 3He gas
target internal to the HERA e± storage ring. The event
sample combines ρ0 mesons produced incoherently off
individual nucleons and coherently off the nucleus as a
whole. The distributions in one production angle and two
angles describing the ρ0 → π+π- decay yielded
measurements of eight elements of the spin-density matrix,
including one that had not been measured before. The results
are consistent with the dominance of helicity conserving
amplitudes and natural parity exchange. The improved
precision achieved at 4 < W < 7 GeV, in combination with
other data at W > 7 GeV, reveals evidence for an energy
dependence in the ratio R of the longitudinal to transverse
cross sections at constant Q2.},
Doi = {10.1007/s100520000536},
Key = {fds246131}
}
@article{fds355715,
Author = {Adhikari, S and Akondi, CS and Ali, A and Amaryan, M and Asaturyan, A and Austregesilo, A and Baldwin, Z and Barbosa, F and Barlow, J and Barriga,
E and Barsotti, R and Beattie, TD and Berdnikov, VV and Black, T and Boeglin, W and Briscoe, WJ and Britton, T and Brooks, WK and Cannon, BE and Chudakov, E and Cole, S and Cortes, O and Crede, V and Dalton, MM and Daniels, T and Deur, A and Dobbs, S and Dolgolenko, A and Dotel, R and Dugger, M and Dzhygadlo, R and Egiyan, H and Erbora, T and Ernst, A and Eugenio, P and Fanelli, C and Fegan, S and Fitches, J and Foda, AM and Furletov, S and Gan, L and Gao, H and Gasparian, A and Gleason, C and Goetzen, K and Goryachev, VS and Guo, L and Hakobyan, H and Hamdi, A and Huber, GM and Hurley, A and Ireland, DG and Ito, MM and Jaegle, I and Jarvis, NS and Jones, RT and Kakoyan, V and Kalicy, G and Kamel, M and Khachatryan, V and Khatchatryan, M and Kourkoumelis, C and Kuleshov,
S and Laduke, A and Larin, I and Lawrence, D and Lersch, DI and Li, H and Li,
WB and Liu, B and Livingston, K and Lolos, GJ and Luckas, K and Lyubovitskij, V and Mack, D and Marukyan, H and Matveev, V and McCaughan, M and McCracken, M and McGinley, W and Meyer, CA and Miskimen, R and Mitchell, RE and Mizutani, K and Neelamana, V and Nerling, F and Ng, L and Ostrovidov, AI and Papandreou, Z and Paudel, C and Pauli, P and Pedroni, R and Pentchev, L and Peters, KJ and Phelps, W and Pooser, E and Reinhold, J and Ritchie, BG and Ritman, J and Rodriguez,
G},
Title = {Measurement of beam asymmetry for π- Δ++ photoproduction
on the proton at Eγ=8.5 GeV},
Journal = {Physical Review C},
Volume = {103},
Number = {2},
Year = {2021},
Month = {February},
url = {http://dx.doi.org/10.1103/PhysRevC.103.L022201},
Abstract = {We report a measurement of the π- photoproduction beam
asymmetry for the reaction γp→π-Δ++ using data from the
GlueX experiment in the photon beam energy range 8.2-8.8
GeV. The asymmetry ς is measured as a function of
four-momentum transfer t to the Δ++ and compared to
phenomenological models. We find that ς varies as a
function of t: negative at smaller values and positive at
higher values of |t|. The reaction can be described
theoretically by t-channel particle exchange requiring
pseudoscalar, vector, and tensor intermediaries. In
particular, this reaction requires charge exchange, allowing
us to probe pion exchange and the significance of
higher-order corrections to one-pion exchange at low
momentum transfer. Constraining production mechanisms of
conventional mesons may aid in the search for and study of
unconventional mesons. This is the first measurement of the
process at this energy.},
Doi = {10.1103/PhysRevC.103.L022201},
Key = {fds355715}
}
@article{fds246070,
Author = {Mibe, T and Gao, H and Hicks, K and Kramer, K and Stepanyan, S and Tedeschi, DJ and Amaryan, MJ and Ambrozewicz, P and Anghinolfi, M and Asryan, G and Audit, G and Avakian, H and Bagdasaryan, H and Baillie, N and Ball, JP and Baltzell, NA and Battaglieri, M and Bedlinskiy, I and Bellis, M and Benmouna, N and Berman, BL and Biselli, AS and Blaszczyk,
L and Bouchigny, S and Boiarinov, S and Bradford, R and Branford, D and Briscoe, WJ and Brooks, WK and Bültmann, S and Burkert, VD and Butuceanu, C and Calarco, JR and Careccia, SL and Carman, DS and Chen,
S and Cole, PL and Collins, P and Coltharp, P and Crabb, D and Crannell, H and Crede, V and Cummings, JP and Dashyan, N and De Masi and R and De Vita and R and De Sanctis and E and Degtyarenko, PV and Deur, A and Dharmawardane, KV and Dickson, R and Djalali, C and Dodge, GE and Donnelly, J and Doughty, D and Dugger, M and Dzyubak, OP and Egiyan, H and Egiyan, KS and El Fassi and L and Elouadrhiri, L and Eugenio, P and Fedotov, G and Feldman, G and Funsten,
H and Garçon, M and Gavalian, G and Gilfoyle, GP and Giovanetti, KL and Girod, FX and Goetz, JT and Gonenc, A and Gordon, CIO and Gothe, RW and Griffioen, KA and Guidal, M and Guler, N and Guo, L and Gyurjyan, V and Hadjidakis, C and Hafidi, K and Hakobyan, H and Hakobyan, RS and Hanretty, C and Hardie, J and Hersman, FW and Hleiqawi, I and Holtrop,
M and Hyde-Wright, CE and Ilieva, Y and Ireland, DG and Ishkhanov, BS and Isupov, EL and Ito, MM and Jenkins, D and Jo, HS and Johnstone, JR and Joo,
K and Juengst, HG and Kalantarians, N},
Title = {Measurement of coherent -meson photoproduction from the
deuteron at low energies},
Journal = {Physical Review C - Nuclear Physics},
Volume = {76},
Number = {5},
Publisher = {American Physical Society (APS)},
Year = {2007},
Month = {November},
ISSN = {0556-2813},
url = {http://dx.doi.org/10.1103/PhysRevC.76.052202},
Abstract = {The cross section and decay angular distributions for the
coherent -meson photoproduction on the deuteron have been
measured for the first time up to a squared four-momentum
transfer t=(pγ-p)2=-2 GeV2/c2, using the CLAS detector at
the Thomas Jefferson National Accelerator Facility. The
cross sections are compared with predictions from a
rescattering model. In a framework of vector meson
dominance, the data are consistent with the total -N cross
section σN at about 10 mb. If vector meson dominance is
violated, a larger σN is possible by introducing a larger t
slope for the N→N process than that for the γN→N
process. The decay angular distributions of the are
consistent with helicity conservation. © 2007 The American
Physical Society.},
Doi = {10.1103/PhysRevC.76.052202},
Key = {fds246070}
}
@article{fds344651,
Author = {Mihovilovič, M and Jin, G and Long, E and Zhang, YW and Allada, K and Anderson, B and Annand, JRM and Averett, T and Bertozzi, W and Boeglin,
W and Bradshaw, P and Camsonne, A and Canan, M and Cates, GD and Chen, C and Chen, JP and Chudakov, E and De Leo and R and Deng, X and Deltuva, A and Deur,
A and Dutta, C and El Fassi and L and Flay, D and Frullani, S and Garibaldi,
F and Gao, H and Gilad, S and Gilman, R and Glamazdin, O and Golak, J and Golge, S and Gomez, J and Hansen, O and Higinbotham, DW and Holmstrom,
T and Huang, J and Ibrahim, H and de Jager, CW and Jensen, E and Jiang, X and Jones, M and Kamada, H and Kang, H and Katich, J and Khanal, HP and Kievsky, A and King, P and Korsch, W and LeRose, J and Lindgren, R and Lu,
HJ and Luo, W and Marcucci, LE and Markowitz, P and Meziane, M and Michaels, R and Moffit, B and Monaghan, P and Muangma, N and Nanda, S and Norum, BE and Pan, K and Parno, DS and Piasetzky, E and Posik, M and Punjabi, V and Puckett, AJR and Qian, X and Qiang, Y and Qui, X and Riordan, S and Saha, A and Sauer, PU and Sawatzky, B and Schiavilla, R and Schoenrock, B and Shabestari, M and Shahinyan, A and Širca, S and Skibiński, R and St. John and J and Subedi, R and Sulkosky, V and Tireman,
W and Tobias, WA and Topolnicki, K and Urciuoli, GM and Viviani, M and Wang, D and Wang, K and Wang, Y and Watson, J and Wojtsekhowski, B and Witała, H and Ye, Z and Zhan, X and Zhang, Y and Zheng, X and Zhao,
B},
Title = {Measurement of double-polarization asymmetries in the
quasi-elastic He→3(e→,e′p)
process},
Journal = {Physics Letters, Section B: Nuclear, Elementary Particle and
High-Energy Physics},
Volume = {788},
Pages = {117-121},
Year = {2019},
Month = {January},
url = {http://dx.doi.org/10.1016/j.physletb.2018.10.063},
Abstract = {We report on a precise measurement of double-polarization
asymmetries in electron-induced breakup of He3 proceeding to
pd and ppn final states, performed in quasi-elastic
kinematics at Q2=0.25(GeV/c)2 for missing momenta up to
250MeV/c. These observables represent highly sensitive tools
to investigate the electromagnetic and spin structure of He3
and the relative importance of two- and three-body effects
involved in the breakup reaction dynamics. The measured
asymmetries cannot be satisfactorily reproduced by
state-of-the-art calculations of He3 unless their three-body
segment is adjusted, indicating that the spin-dependent part
of the nuclear interaction governing the three-body breakup
process is much smaller than previously thought.},
Doi = {10.1016/j.physletb.2018.10.063},
Key = {fds344651}
}
@article{fds246004,
Author = {Mihovilovič, M and Jin, G and Long, E and Zhang, Y-W and Allada, K and Anderson, B and Annand, JRM and Averett, T and Boeglin, W and Bradshaw,
P and Camsonne, A and Canan, M and Cates, GD and Chen, C and Chen, JP and Chudakov, E and De Leo and R and Deng, X and Deltuva, A and Deur, A and Dutta,
C and El Fassi and L and Flay, D and Frullani, S and Garibaldi, F and Gao, H and Gilad, S and Gilman, R and Glamazdin, O and Golak, J and Golge, S and Gomez, J and Hansen, O and Higinbotham, DW and Holmstrom, T and Huang,
J and Ibrahim, H and de Jager, CW and Jensen, E and Jiang, X and Jones, M and Kang, H and Katich, J and Khanal, HP and Kievsky, A and King, P and Korsch,
W and LeRose, J and Lindgren, R and Lu, H-J and Luo, W and Marcucci, LE and Markowitz, P and Meziane, M and Michaels, R and Moffit, B and Monaghan,
P and Muangma, N and Nanda, S and Norum, BE and Pan, K and Parno, D and Piasetzky, E and Posik, M and Punjabi, V and Puckett, AJR and Qian, X and Qiang, Y and Qui, X and Riordan, S and Saha, A and Sauer, PU and Sawatzky,
B and Schiavilla, R and Schoenrock, B and Shabestari, M and Shahinyan,
A and Širca, S and Skibiński, R and John, JS and Subedi, R and Sulkosky,
V and Tobias, WA and Tireman, W and Urciuoli, GM and Viviani, M and Wang,
D and Wang, K and Wang, Y and Watson, J and Wojtsekhowski, B and Witała,
H and Ye, Z and Zhan, X and Zhang, Y and Zheng, X and Zhao, B and Zhu, L and (Jefferson Lab Hall A Collaboration)},
Title = {Measurement of double-polarization asymmetries in the
quasielastic (3)He[→](e[→],e(')d) process.},
Journal = {Physical review letters},
Volume = {113},
Number = {23},
Pages = {232505},
Year = {2014},
Month = {December},
ISSN = {0031-9007},
url = {http://dx.doi.org/10.1103/physrevlett.113.232505},
Abstract = {We present a precise measurement of double-polarization
asymmetries in the ^{3}He[over →](e[over →],e^{'}d)
reaction. This particular process is a uniquely sensitive
probe of hadron dynamics in ^{3}He and the structure of the
underlying electromagnetic currents. The measurements have
been performed in and around quasielastic kinematics at
Q^{2}=0.25(GeV/c)^{2} for missing momenta up to
270 MeV/c. The asymmetries are in fair agreement with
the state-of-the-art calculations in terms of their
functional dependencies on p_{m} and ω, but are
systematically offset. Beyond the region of the quasielastic
peak, the discrepancies become even more pronounced. Thus,
our measurements have been able to reveal deficiencies in
the most sophisticated calculations of the three-body
nuclear system, and indicate that further refinement in the
treatment of their two-and/or three-body dynamics is
required.},
Doi = {10.1103/physrevlett.113.232505},
Key = {fds246004}
}
@article{fds246138,
Author = {H. Gao and al, MECE},
Title = {Measurement of Electron Proton Elastic Cross-section s for
0.4},
Journal = {Phys Rev C},
Volume = {70},
Number = {1},
Pages = {015206},
Year = {2004},
url = {http://dx.doi.org/10.1103/PhysRevC.70.015206},
Abstract = {We report on precision measurements of the elastic cross
section for electron-proton scattering performed in Hall C
at Jefferson Lab. The measurements were made at 28 distinct
kinematic settings covering a range in momentum transfer of
0.4<Q2<5.5 (GeV/c)2. These measurements represent a
significant contribution to the world's cross section data
set in the Q2 range, where a large discrepancy currently
exists between the ratio of electric to magnetic proton form
factors extracted from previous cross section measurements
and that recently measured via polarization transfer in Hall
A at Jefferson Lab. This data set shows good agreement with
previous cross section measurements, indicating that if a
heretofore unknown systematic error does exist in the cross
section measurements, then it is intrinsic to all such
measurements.},
Doi = {10.1103/PhysRevC.70.015206},
Key = {fds246138}
}
@article{fds246134,
Author = {H. Gao and Airapetian, A and Akopov, N and Amarian, M and Aschenauer, EC and Avakian, H and Avakian, R and Avetissian, A and Bains, B and Baumgarten,
C and Beckmann, M and Belostotski, S and Belz, JE and Benisch, T and Bernreuther, S and Bianchi, N and Blouw, J and Böttcher, H and Borissov, A and Bouwhuis, M and Brack, J and Brauksiepe, S and Braun, B and Bray, B and Brons, S and Brückner, W and Brüll, A and Bruins, EEW and Bulten, HJ and Capitani, GP and Carter, P and Chumney, P and Cisbani, E and Court, GR and Dalpiaz, PF and Sanctis, ED and Schepper, DD and Devitsin,
E and Huberts, PKADW and Nezza, PD and Düren, M and Dvoredsky, A and Elbakian, G and Ely, J and Fantoni, A and Fechtchenko, A and Ferstl, M and Fiedler, K and Filippone, BW and Fischer, H and Fox, B and Franz, J and Frullani, S and Funk, MA and Gärber, Y and Gao, H and Garibaldi, F and Gavrilov, G and Geiger, P and Gharibyan, V and Golendukhin, A and Graw,
G and Grebeniouk, O and Green, PW and Greeniaus, LG and Grosshauser, C and Guidal, M and Gute, A and Gyurjyan, V and Haas, JP and Haeberli, W and Hausser, O and Hansen, JO and Hartig, M and Hasch, D and Heinsius, FH and Henderson, R and Henoch, M and Hertenberger, R and Holler, Y and Holt,
RJ and Hoprich, W and Ihssen, H and Iodice, M and Izotov, A and Jackson,
HE and Jgoun, A and Kaiser, R and Kinney, E and Kirsch, M and Kisselev, A and Kitching, P and Kobayashi, H and Koch, N and Königsmann, K and Kolstein, M and Kolster, H and Korotkov, V and Korsch, W and Kozlov, V and Kramer, LH and Krivokhijine, VG and Kurisuno, M and Kyle, G and Lachnit,
W and Lenisa, P and Lorenzon, W and Makins, NCR and Manaenkov, SI and Martens, FK and Martin, JW and Masoli, F and Mateos, A and McAndrew, M and McIlhany, K and McKeown, RD and Meissner, F and Menden, F and Metz, A and Meyners, N and Mikloukho, O and Miller, CA and Miller, MA and Milner, R and Most, A and Muccifora, V and Mussa, R and Nagaitsev, A and Naryshkin, Y and Nathan, AM and Neunreither, F and Niczyporuk, JM and Nowak, WD and Nupieri, M and O'Neill, TG and Openshaw, R and Ouyang, J and Owen, BR and Papavassiliou, V and Pate, SF and Pitt, M and Potashov, S and Potterveld, DH and Rakness, G and Reali, A and Redwine, R and Reolon,
AR and Ristinen, R and Rith, K and Rossi, P and Rudnitsky, S and Ruh, M and Ryckbosch, D and Sakemi, Y and Savin, I and Scarlett, C and Schmidt, F and Schmitt, H and Schnell, G and Schüler, KP and Schwind, A and Seibert,
J and Shibata, TA and Shibatani, K and Shin, T and Shutov, V and Simani, C and Simon, A and Sinram, K and Slavich, P and Spengos, M and Steffens, E and Stenger, J and Stewart, J and Stösslein, U and Sutter, M and Tallini,
H and Taroian, S and Terkulov, A and Thomas, E and Tipton, B and Tytgat, M and Urciuoli, GM and Brand, JFJVD and Steenhoven, GVD and Vyver, RVD and Hunen, JJV and Vetterli, MC and Vikhrov, V and Vincter, MG and Visser,
J and Volk, E and Wander, W and Wendland, J and Williamson, SE and Wise, T and Woller, K and Yoneyama, S and Zohrabian, H},
Title = {Measurement of longitudinal spin transfer to Λ hyperons in
deep-inelastic lepton scattering},
Journal = {Physical Review D},
Volume = {64},
Number = {11},
Pages = {7},
Year = {2001},
ISSN = {0556-2821},
url = {http://dx.doi.org/10.1103/PhysRevD.64.112005},
Abstract = {Spin transfer in deep-inelastic Λ electroproduction has
been studied with the HERMES detector using the 27.6 GeV
polarized positron beam in the DESY HERA storage ring. For
an average fractional energy transfer 〈z〉 = 0.45, the
longitudinal spin transfer from the virtual photon to the Λ
has been extracted. The spin transfer along the Λ momentum
direction is found to be 0.11±0.17(stat)±0.03(syst);
similar values are found for other possible choices for the
longitudinal spin direction of the Λ. This result is the
most precise value obtained to date from deep-inelastic
scattering with charged lepton beams, and is sensitive to
polarized up quark fragmentation to hyperon states. The
experimental result is found to be in general agreement with
various models of the Λ spin content, and is consistent
with the assumption of helicity conservation in the
fragmentation process. ©2001 the American Physical
Society.},
Doi = {10.1103/PhysRevD.64.112005},
Key = {fds246134}
}
@article{fds246162,
Author = {al, BCE},
Title = {Measurement of Nuclear Transparency for the $A(e,e'\pi^+)$
Reaction},
Journal = {Physical Review Letters},
Volume = {99},
Number = {24},
Pages = {242502},
Year = {2007},
ISSN = {0031-9007},
url = {http://dx.doi.org/10.1103/physrevlett.99.242502},
Abstract = {We have measured the nuclear transparency of the A(e,e'pi+)
process in 2H, 12C, 27Al, 63Cu, and 197Au targets. These
measurements were performed at the Jefferson Laboratory over
a four momentum transfer squared range Q2=1.1 to 4.7
(GeV/c)2. The nuclear transparency was extracted as the
super-ratio of (sigmaA/sigmaH) from data to a model of
pion-electroproduction from nuclei without pi-N final-state
interactions. The Q2 and atomic number dependence of the
nuclear transparency both show deviations from traditional
nuclear physics expectations and are consistent with
calculations that include the quantum chromodynamical
phenomenon of color transparency.},
Doi = {10.1103/physrevlett.99.242502},
Key = {fds246162}
}
@article{fds364178,
Author = {Liang, Y and Tvaskis, V and Christy, ME and Ahmidouch, A and Armstrong,
CS and Arrington, J and Asaturyan, R and Avery, S and Baker, OK and Beck,
DH and Blok, HP and Bochna, CW and Boeglin, W and Bosted, P and Bouwhuis,
M and Breuer, H and Brown, DS and Bruell, A and Carlini, RD and Cha, J and Chant, NS and Cochran, A and Cole, L and Danagoulian, S and Day, DB and Dunne, J and Dutta, D and Ent, R and Fenker, HC and Fox, B and Gan, L and Gao,
H and Garrow, K and Gaskell, D and Gasparian, A and Geesaman, DF and Gilman, R and Guèye, PLJ and Harvey, M and Holt, RJ and Jiang, X and Jones, M and Keppel, CE and Kinney, E and Lorenzon, W and Lung, A and Mack,
DJ and Markowitz, P and Martin, JW and Mcilhany, K and Mckee, D and Meekins, D and Miller, MA and Milner, RG and Mitchell, JH and Mkrtchyan,
H and Mueller, BA and Nathan, A and Niculescu, G and Niculescu, I and O'neill, TG and Papavassiliou, V and Pate, SF and Piercey, RB and Potterveld, D and Ransome, RD and Reinhold, J and Rollinde, E and Rondon, O and Roos, P and Sarty, AJ and Sawafta, R and Schulte, EC and Segbefia, E and Smith, C and Stepanyan, S and Strauch, S and Tadevosyan,
V and Tang, L and Tieulent, R and Uzzle, A and Vulcan, WF and Wood, SA and Xiong, F and Yuan, L and Zeier, M and Zihlmann, B and Ziskin,
V},
Title = {Measurement of R=σL/σT and the separated longitudinal and
transverse structure functions in the nucleon-resonance
region},
Journal = {Physical Review C},
Volume = {105},
Number = {6},
Year = {2022},
Month = {June},
url = {http://dx.doi.org/10.1103/PhysRevC.105.065205},
Abstract = {We report on a detailed study of longitudinal strength in
the nucleon resonance region, presenting new results from
inclusive electron-proton cross sections measured at
Jefferson Lab Hall C in the four-momentum transfer range
0.2<Q2<5.5GeV2. The data have been used to accurately
perform 167 Rosenbluth-type longitudinal/transverse
separations. The precision R=σL/σT data are presented
here, along with the first separate values of the inelastic
structure functions F1 and FL in this regime. The resonance
longitudinal component is found to be significant, both in
magnitude and in the existence of defined mass peaks.
Additionally, quark-hadron duality is here observed above
Q2=1GeV2 in the separated structure functions
independently.},
Doi = {10.1103/PhysRevC.105.065205},
Key = {fds364178}
}
@article{fds363064,
Author = {Adhikari, S and Akondi, CS and Albrecht, M and Ali, A and Amaryan, M and Asaturyan, A and Austregesilo, A and Baldwin, Z and Barbosa, F and Barlow, J and Barriga, E and Barsotti, R and Beattie, TD and Berdnikov,
VV and Black, T and Boeglin, W and Briscoe, WJ and Britton, T and Brooks,
WK and Chudakov, E and Cole, S and Cole, PL and Cortes, O and Crede, V and Dalton, MM and Daniels, T and Deur, A and Dobbs, S and Dolgolenko, A and Dotel, R and Dugger, M and Dzhygadlo, R and Egiyan, H and Erbora, T and Ernst, A and Eugenio, P and Fanelli, C and Fegan, S and Fitches, J and Foda, AM and Furletov, S and Gan, L and Gao, H and Gasparian, A and Gleason, C and Goetzen, K and Goryachev, VS and Guo, L and Hagen, M and Hakobyan, H and Hamdi, A and Hernandez, J and Hoffman, ND and Hou, G and Huber, GM and Hurley, A and Ireland, DG and Ito, MM and Jaegle, I and Jarvis, NS and Jones, RT and Kakoyan, V and Kalicy, G and Kamel, M and Khachatryan, V and Khatchatryan, M and Kourkoumelis, C and Kuleshov,
S and Laduke, A and Larin, I and Lawrence, D and Lersch, DI and Li, H and Li,
WB and Liu, B and Livingston, K and Lolos, GJ and Luckas, K and Lyubovitskij, V and Mack, D and Mahmood, A and Marukyan, H and Matveev,
V and McCaughan, M and McCracken, M and Meyer, CA and Miskimen, R and Mitchell, RE and Mizutani, K and Neelamana, V and Nerling, F and Ng, L and Ostrovidov, AI and Papandreou, Z and Paudel, C and Pauli, P and Pedroni,
R and Pentchev, L and Peters, KJ and Reinhold, J},
Title = {Measurement of spin density matrix elements in Λ(1520)
photoproduction at 8.2-8.8 GeV},
Journal = {Physical Review C},
Volume = {105},
Number = {3},
Year = {2022},
Month = {March},
url = {http://dx.doi.org/10.1103/PhysRevC.105.035201},
Abstract = {We report on the measurement of spin density matrix elements
of the Λ(1520) in the photoproduction reaction
γp→Λ(1520)K+, via its subsequent decay to K-p. The
measurement was performed as part of the GlueX experimental
program in Hall D at Jefferson Laboratory using a linearly
polarized photon beam with Eγ=8.2GeV-8.8GeV. These are the
first such measurements in this photon energy range. Results
are presented in bins of momentum transfer squared, -(t-t0).
We compare the results with a Reggeon exchange model and
determine that natural exchange amplitudes are dominant in
Λ(1520) photoproduction.},
Doi = {10.1103/PhysRevC.105.035201},
Key = {fds363064}
}
@article{fds374563,
Author = {Adhikari, S and Afzal, F and Akondi, CS and Albrecht, M and Amaryan, M and Arroyave, V and Asaturyan, A and Austregesilo, A and Baldwin, Z and Barbosa, F and Barlow, J and Barriga, E and Barsotti, R and Beattie, TD and Berdnikov, VV and Black, T and Boeglin, W and Briscoe, WJ and Britton,
T and Brooks, WK and Byer, D and Chudakov, E and Cole, PL and Cortes, O and Crede, V and Dalton, MM and Darulis, D and Deur, A and Dobbs, S and Dolgolenko, A and Dotel, R and Dugger, M and Dzhygadlo, R and Ebersole,
D and Edo, M and Egiyan, H and Erbora, T and Eugenio, P and Fabrizi, A and Fanelli, C and Fang, S and Fegan, S and Fitches, J and Foda, AM and Furletov, S and Gan, L and Gao, H and Gardner, A and Gasparian, A and Gleason, C and Goetzen, K and Goryachev, VS and Grube, B and Guo, J and Guo, L and Hague, TJ and Hakobyan, H and Hernandez, J and Hoffman, ND and Hornidge, D and Hou, G and Huber, GM and Hurck, P and Hurley, A and Imoehl,
W and Ireland, DG and Ito, MM and Jaegle, I and Jarvis, NS and Jeske, T and Jones, RT and Kakoyan, V and Kalicy, G and Khachatryan, V and Khatchatryan, M and Kourkoumelis, C and Laduke, A and Larin, I and Lawrence, D and Lersch, DI and Li, H and Liu, B and Livingston, K and Lolos, GJ and Lorenti, L and Lyubovitskij, V and Ma, R and Mack, D and Mahmood, A and Marukyan, H and Matveev, V and McCaughan, M and McCracken, M and Meyer, CA and Miskimen, R and Mitchell, RE and Mizutani, K and Neelamana, V and Ng, L and Nissen,
E},
Title = {Measurement of spin-density matrix elements in ρ(770)
production with a linearly polarized photon beam at
Eγ=8.2-8.8 GeV},
Journal = {Physical Review C},
Volume = {108},
Number = {5},
Year = {2023},
Month = {November},
url = {http://dx.doi.org/10.1103/PhysRevC.108.055204},
Abstract = {The GlueX experiment at Jefferson Lab studies
photoproduction of mesons using linearly polarized 8.5GeV
photons impinging on a hydrogen target which is contained
within a detector with near-complete coverage for charged
and neutral particles. We present measurements of
spin-density matrix elements for the photoproduction of the
vector meson ρ(770). The statistical precision achieved
exceeds that of previous experiments for polarized
photoproduction in this energy range by orders of magnitude.
We confirm a high degree of s-channel helicity conservation
at small squared four-momentum transfer t and are able to
extract the t dependence of natural- and unnatural-parity
exchange contributions to the production process in detail.
We confirm the dominance of natural-parity exchange over the
full t range. We also find that helicity amplitudes in which
the helicity of the incident photon and the photoproduced
ρ(770) differ by two units are negligible for
-t<0.5GeV2/c2.},
Doi = {10.1103/PhysRevC.108.055204},
Key = {fds374563}
}
@article{fds349848,
Author = {Sulkosky, V and Singh, JT and Peng, C and Chen, JP and Deur, A and Abrahamyan, S and Aniol, KA and Armstrong, DS and Averett, T and Bailey,
SL and Beck, A and Bertin, P and Butaru, F and Boeglin, W and Camsonne, A and Cates, GD and Chang, CC and Choi, S and Chudakov, E and Coman, L and Cornejo, JC and Craver, B and Cusanno, F and De Leo and R and de Jager, CW and Denton, JD and Dhamija, S and Feuerbach, R and Finn, JM and Frullani, S and Fuoti, K and Gao, H and Garibaldi, F and Gayou, O and Gilman, R and Glamazdin, A and Glashausser, C and Gomez, J and Hansen, JO and Hayes,
D and Hersman, B and Higinbotham, DW and Holmstrom, T and Humensky, TB and Hyde, CE and Ibrahim, H and Iodice, M and Jiang, X and Kaufman, LJ and Kelleher, A and Keister, KE and Kim, W and Kolarkar, A and Kolb, N and Korsch, W and Kramer, K and Kumbartzki, G and Lagamba, L and Lainé, V and Laveissiere, G and Lerose, JJ and Lhuillier, D and Lindgren, R and Liyanage, N and Lu, HJ and Ma, B and Margaziotis, DJ and Markowitz, P and McCormick, K and Meziane, M and Meziani, ZE and Michaels, R and Moffit,
B and Monaghan, P and Nanda, S and Niedziela, J and Niskin, M and Pandolfi,
R and Paschke, KD and Potokar, M and Puckett, AJR and Punjabi, VA and Qiang, Y and Ransome, R and Reitz, B and Roché, R and Saha, A and Shabetai, A and Širca, S and Slifer, K and Snyder, R and Solvignon, P and Stringer, R and Subedi, R and Tobias, WA and Ton, N and Ulmer, PE and Urciuoli, GM and Vacheret, A and Voutier, E},
Title = {Measurement of the 3He spin-structure functions
and of neutron (3He) spin-dependent sum rules at
0.035 ≤ Q2 ≤ 0.24
GeV2},
Journal = {Physics Letters, Section B: Nuclear, Elementary Particle and
High-Energy Physics},
Volume = {805},
Year = {2020},
Month = {June},
url = {http://dx.doi.org/10.1016/j.physletb.2020.135428},
Abstract = {The spin-structure functions g1 and g2, and the
spin-dependent partial cross-section σTT have been
extracted from the polarized cross-sections differences,
Δσ∥(ν,Q2) and Δσ⊥(ν,Q2) measured for the
He3→(e→,e′)X reaction, in the E97-110 experiment at
Jefferson Lab. Polarized electrons with energies from 1.147
to 4.404 GeV were scattered at angles of 6∘ and 9∘ from
a longitudinally or transversely polarized 3He target. The
data cover the kinematic regions of the quasi-elastic,
resonance production and beyond. From the extracted
spin-structure functions, the first moments Γ1‾(Q2),
Γ2(Q2) and ITT(Q2) are evaluated with high precision for
the neutron in the Q2 range from 0.035 to 0.24GeV2. The
comparison of the data and the chiral effective field theory
predictions reveals the importance of proper treatment of
the Δ degree of freedom for spin observables.},
Doi = {10.1016/j.physletb.2020.135428},
Key = {fds349848}
}
@article{fds344653,
Author = {Laskaris, G and Yan, X and Mueller, JM and Zimmerman, WR and Xiong, W and Ahmed, MW and Averett, T and Chu, PH and Deltuva, A and Flower, C and Fonseca, AC and Gao, H and Golak, J and Heideman, JN and Karwowski, HJ and Meziane, M and Sauer, PU and Skibiński, R and Strakovsky, II and Weller, HR and Witała, H and Wu, YK},
Title = {Measurement of the doubly-polarized He3→(γ→,n)pp
reaction at 16.5 MeV and its implications for the GDH sum
rule},
Journal = {Physics Letters, Section B: Nuclear, Elementary Particle and
High-Energy Physics},
Volume = {750},
Pages = {547-551},
Year = {2015},
Month = {November},
url = {http://dx.doi.org/10.1016/j.physletb.2015.09.065},
Abstract = {We report new measurements of the double-polarized
photodisintegration of 3He at an incident photon energy of
16.5 MeV, carried out at the High Intensity γ-ray Source
(HIγS) facility located at Triangle Universities Nuclear
Laboratory (TUNL). The spin-dependent double-differential
cross sections and the contribution from the three-body
channel to the Gerasimov-Drell-Hearn (GDH) integrand were
extracted and compared with the state-of-the-art three-body
calculations. The calculations, which include the Coulomb
interaction and are in good agreement with the results of
previous measurements at 12.8 and 14.7 MeV, deviate from the
new cross section results at 16.5 MeV. The GDH integrand was
found to be about one standard deviation larger than the
maximum value predicted by the theories.},
Doi = {10.1016/j.physletb.2015.09.065},
Key = {fds344653}
}
@article{fds335578,
Author = {al, OGE},
Title = {Measurement of the elastic electromagnetic form factor ratio
muGep/Gmp via polarization transfer},
Journal = {Phys. Rev. C},
Volume = {64},
Number = {3},
Pages = {014602},
Year = {2001},
url = {http://dx.doi.org/10.1103/PhysRevC.64.038202},
Abstract = {We present measurements of the ratio of the proton elastic
electromagnetic form factors, μpGEp/GMp . The Jefferson Lab
Hall A Focal Plane Polarimeter was used to determine the
longitudinal and transverse components of the recoil proton
polarization in ep elastic scattering; the ratio of these
polarization components is proportional to the ratio of the
two form factors. These data reproduce the observation of
Jones et al. [Phys. Rev. Lett. 84, 1398 (2000)], that the
form factor ratio decreases significantly from unity above
Q2 =1 GeV2.},
Doi = {10.1103/PhysRevC.64.038202},
Key = {fds335578}
}
@article{fds246133,
Author = {H. Gao and al, OGE},
Title = {Measurement of the elastic electromagnetic form-factor ratio
gamma-p G P/E//G P/Mvia polarization transfer},
Journal = {Phys. Rev. C},
Volume = {64},
Number = {3},
Pages = {038202},
Year = {2001},
url = {http://dx.doi.org/10.1103/PhysRevC.64.038202},
Abstract = {We present measurements of the ratio of the proton elastic
electromagnetic form factors, μpGEp/GMp . The Jefferson
Lab Hall A Focal Plane Polarimeter was used to determine the
longitudinal and transverse components of the recoil proton
polarization in ep elastic scattering; the ratio of these
polarization components is proportional to the ratio of the
two form factors. These data reproduce the observation of
Jones et al. [Phys. Rev. Lett. 84, 1398 (2000)], that the
form factor ratio decreases significantly from unity above
Q2 =1 GeV2.},
Doi = {10.1103/PhysRevC.64.038202},
Key = {fds246133}
}
@article{fds361807,
Author = {Arrington, J and Bane, J and Daniel, A and Fomin, N and Gaskell, D and Seely, J and Asaturyan, R and Benmokhtar, F and Boeglin, W and Bosted,
P and Bukhari, MHS and Christy, ME and Connell, S and Dalton, MM and Day,
D and Dunne, J and Dutta, D and El Fassi and L and Ent, R and Fenker, H and Gao,
H and Holt, RJ and Horn, T and Hungerford, E and Jones, MK and Jourdan, J and Kalantarians, N and Keppel, CE and Kiselev, D and Lung, AF and Malace,
S and Meekins, DG and Mertens, T and Mkrtchyan, H and Niculescu, G and Niculescu, I and Potterveld, DH and Perdrisat, C and Punjabi, V and Qian, X and Reimer, PE and Roche, J and Rodriguez, VM and Rondon, O and Schulte, E and Slifer, K and Smith, GR and Solvignon, P and Tadevosyan,
V and Tang, L and Testa, G and Trojer, R and Tvaskis, V and Wesselmann, FR and Wood, SA and Yuan, L and Zheng, X},
Title = {Measurement of the EMC effect in light and heavy
nuclei},
Journal = {Physical Review C},
Volume = {104},
Number = {6},
Year = {2021},
Month = {December},
url = {http://dx.doi.org/10.1103/PhysRevC.104.065203},
Abstract = {Inclusive electron scattering from nuclear targets has been
measured to extract the nuclear dependence of the inelastic
cross section (σA) in Hall C at the Thomas Jefferson
National Accelerator facility. Results are presented for H2,
He3, He4, B9, C12, Cu63, and Au197 at an incident electron
beam energy of 5.77 GeV for a range of momentum transfer
from Q2 = 2 to 7 (GeV/c)2. These data improve the precision
of the existing measurements of the EMC effect in the
nuclear targets at large x and allow for more detailed
examinations of the A dependence of the EMC
effect.},
Doi = {10.1103/PhysRevC.104.065203},
Key = {fds361807}
}
@article{fds246201,
Author = {H. Gao and al, MAE},
Title = {Measurement of the Generalized Forward Spin
Polarizabilities},
Journal = {Physical Review Letters},
Volume = {93},
Number = {15},
Pages = {152301},
Year = {2004},
ISSN = {0031-9007},
url = {http://dx.doi.org/10.1103/physrevlett.93.152301},
Abstract = {The generalized forward spin polarizabilities gamma(0) and
delta(LT) of the neutron have been extracted for the first
time in a Q2 range from 0.1 to 0.9 GeV2. Since gamma(0) is
sensitive to nucleon resonances and delta(LT) is insensitive
to the Delta resonance, it is expected that the pair of
forward spin polarizabilities should provide benchmark tests
of the current understanding of the chiral dynamics of QCD.
The new results on delta(LT) show significant disagreement
with chiral perturbation theory calculations, while the data
for gamma(0) at low Q2 are in good agreement with a
next-to-leading-order relativistic baryon chiral
perturbation theory calculation. The data show good
agreement with the phenomenological MAID
model.},
Doi = {10.1103/physrevlett.93.152301},
Key = {fds246201}
}
@article{fds246200,
Author = {H. Gao and al, GLE},
Title = {Measurement of the Generalized Polarizabilities of the
proton},
Journal = {Physical Review Letters},
Volume = {93},
Number = {12},
Pages = {122001},
Year = {2004},
ISSN = {0031-9007},
url = {http://dx.doi.org/10.1103/PhysRevLett.93.122001},
Abstract = {The generalized polarizabilities (GP) of proton at low c.m.
energies were investigated in virtual Compton scattering
(VCS). At momentum transfer Q 2 = 0.92 and 1.76 GeV2, the
structure functions and the electric and magnetic GP were
determined. The global behavior of electric GP did not
follow a simple dipole form and indicated a strong falloff
with Q 2. A paramagnetic contribution from πN
intermediate states at higher Q2 compensated the dominance
of a long-distance diamagnetic pion cloud at low
Q2.},
Doi = {10.1103/PhysRevLett.93.122001},
Key = {fds246200}
}
@article{fds304556,
Author = {Gao, GLEAIH and Howell, CR},
Title = {Measurement of the Generalized Polarizabilities of the
Proton in Virtual Compton Scattering at Q2 = 0.92 and 1.76
GeV2},
Journal = {Phys. Rev. Lett.},
Volume = {93},
Number = {12},
Pages = {122001},
Year = {2004},
ISSN = {0031-9007},
url = {http://dx.doi.org/10.1103/physrevlett.93.122001},
Abstract = {We report a virtual Compton scattering study of the proton
at low c.m. energies. We have determined the structure
functions P(LL)-P(TT)/epsilon and P(LT), and the electric
and magnetic generalized polarizabilities (GPs) alpha(E)(Q2)
and beta(M)(Q2) at momentum transfer Q(2)=0.92 and 1.76
GeV2. The electric GP shows a strong falloff with Q2, and
its global behavior does not follow a simple dipole form.
The magnetic GP shows a rise and then a falloff; this can be
interpreted as the dominance of a long-distance diamagnetic
pion cloud at low Q2, compensated at higher Q2 by a
paramagnetic contribution from piN intermediate
states.},
Doi = {10.1103/physrevlett.93.122001},
Key = {fds304556}
}
@article{fds356933,
Author = {Sulkosky, V and Peng, C and Chen, JP and Deur, A and Abrahamyan, S and Aniol, KA and Armstrong, DS and Averett, T and Bailey, SJ and Beck, A and Bertin, P and Butaru, F and Boeglin, W and Camsonne, A and Cates, GD and Chang, CC and Choi, S and Chudakov, E and Coman, L and Cornejo, JC and Craver, B and Cusanno, F and De Leo and R and de Jager, CW and Denton, JD and Dhamija, S and Feuerbach, R and Finn, JM and Frullani, S and Fuoti, K and Gao, H and Garibaldi, F and Gayou, O and Gilman, R and Glamazdin, A and Glashausser, C and Gomez, J and Hansen, JO and Hayes, D and Hersman, FW and Higinbotham, DW and Holmstrom, T and Humensky, TB and Hyde, CE and Ibrahim, H and Iodice, M and Jiang, X and Kaufman, LJ and Kelleher, A and Keister, KE and Kim, W and Kolarkar, A and Kolb, N and Korsch, W and Kramer, K and Kumbartzki, G and Lagamba, L and Lainé, V and Laveissiere, G and Lerose, JJ and Lhuillier, D and Lindgren, R and Liyanage, N and Lu, HJ and Ma, B and Margaziotis, DJ and Markowitz, P and McCormick, KR and Meziane, M and Meziani, ZE and Michaels, R and Moffit,
B and Monaghan, P and Nanda, S and Niedziela, J and Niskin, M and Pandolfi,
R and Paschke, KD and Potokar, M and Puckett, A and Punjabi, VA and Qiang,
Y and Ransome, RD and Reitz, B and Roché, R and Saha, A and Shabetai, A and Širca, S and Singh, JT and Slifer, K and Snyder, R and Solvignon, P and Stringer, R and Subedi, R and Tobias, WA and Ton, N and Ulmer, PE and Urciuoli, GM and Vacheret, A and Voutier, E},
Title = {Measurement of the generalized spin polarizabilities of the
neutron in the low-Q 2 region},
Journal = {Nature Physics},
Volume = {17},
Number = {6},
Pages = {687-692},
Year = {2021},
Month = {June},
url = {http://dx.doi.org/10.1038/s41567-021-01245-9},
Abstract = {Understanding the nucleon spin structure in the regime where
the strong interaction becomes truly strong poses a
challenge to both experiment and theory. At energy scales
below the nucleon mass of about 1 GeV, the intense
interaction among the quarks and gluons inside the nucleon
makes them highly correlated. Their coherent behaviour
causes the emergence of effective degrees of freedom,
requiring the application of non-perturbative techniques
such as chiral effective field theory1. Here we present
measurements of the neutron’s generalized spin
polarizabilities that quantify the neutron’s spin
precession under electromagnetic fields at very low
energy-momentum transfer squared down to 0.035 GeV2. In this
regime, chiral effective field theory calculations2–4 are
expected to be applicable. Our data, however, show a strong
discrepancy with these predictions, presenting a challenge
to the current description of the neutron’s spin
properties.},
Doi = {10.1038/s41567-021-01245-9},
Key = {fds356933}
}
@article{fds246195,
Author = {H. Gao and Schulte, EC and al, E},
Title = {Measurement of the High Energy Two-Body Deuteron},
Journal = {Phys. Rev. Lett.},
Volume = {87},
Number = {10},
Pages = {102302},
Year = {2001},
ISSN = {0031-9007},
Abstract = {The first measurements of the d(γ,p)n differential cross
section up to Eγ=5.5 GeV were carried out. Results at
θcm = 70° remain consistent with the scaling
previously observed in JLAB E89-012. At θcm=53° there
appears to be a scaling threshold for Egamma≥3
GeV.},
Key = {fds246195}
}
@article{fds304548,
Author = {Schulte, EC and Ahmidouch, A and Armstrong, CS and Arrington, J and Asaturyan, R and Avery, S and Baker, OK and Beck, DH and Blok, HP and Bochna, CW and Boeglin, W and Bosted, PY and Bouwhuis, M and Breuer, H and Brown, DS and Bruell, A and Cadman, RV and Carlini, R and Chant, NS and Cochran, A and Cole, L and Danagoulian, S and Day, DB and Dunne, JA and Dutta, D and Ent, R and Fenker, HC and Fox, B and Gan, L and Gao, H and Garrow, K and Gaskell, D and Gasparian, A and Geesaman, DF and Gilman,
R and Glashausser, C and Gueye, P and Harvey, M and Holt, RJ and Jackson,
HE and Jiang, X and Keppel, CE and Kinney, ER and Liang, Y and Lorenzon, W and Lung, AF and Mack, DJ and Markowitz, PE and Martin, J and McIlhany, K and McKee, D and Meekins, DG and Miller, MA and Milner, RG and Mitchell, JH and Mkrtchyan, H and Mueller, BA and Nathan, AM and Niculescu, G and Niculescu, I and O'Neill, TG and Papavassiliou, V and Pate, SF and Piercey, RB and Potterveld, DH and Ransome, RD and Reinhold, J and Rollinde, E and Roos, P and Saha, A and Sarty, AJ and Sawafta, R and Segbefia, E and Shin, T and Stepanyan, S and Strauch, S and Sutter, MF and Tadevosyan, V and Tang, L and Tieulent, R and Uzzle, A and Vulcan, WF and Wood, SA and Xiong, F and Yuan, L and Zeier, M and Zihlmann, B and Ziskin,
V},
Title = {Measurement of the high energy two-body deuteron
photodisintegration differential cross section},
Journal = {Physical Review Letters},
Volume = {87},
Number = {10},
Pages = {102302/1-102302/4},
Publisher = {American Physical Society (APS)},
Year = {2001},
Month = {September},
ISSN = {0031-9007},
url = {http://dx.doi.org/10.1103/physrevlett.87.102302},
Abstract = {The first measurements of the d(γ,p)n differential cross
section up to Eγ=5.5 GeV were carried out. Results at θcm
= 70° remain consistent with the scaling previously
observed in JLAB E89-012. At θcm=53° there appears to be a
scaling threshold for Egamma≥3 GeV.},
Doi = {10.1103/physrevlett.87.102302},
Key = {fds304548}
}
@article{fds336444,
Author = {Schulte, EC and Ahmidouch, A and Armstrong, CS and Arrington, J and Asaturyan, R and Avery, S and Beck, DH and Blok, HP and Bochna, CW and Boeglin, W and Bosted, PY and Bouwhuis, M and Breuer, H and Brown, DS and Bruell, A and Cadman, RV and Carlini, R and Chant, NS and Cochran, A and Cole, L and Day, DB and Dunne, JA and Dutta, D and Ent, R and Fenker, HC and Fox, B and Gan, L and Gao, H and Garrow, K and Gaskell, D and Gasparian, A and Geesaman, DF and Glashausser, C and Gueye, P and Harvey, M and Jackson,
HE and Jiang, X and Kinney, ER and Liang, Y and Lorenzon, W and Lung, AF and Mack, DJ and Markowitz, PE and Martin, J and McIlhany, K and McKee, D and Meekins, DG and Miller, MA and Milner, RG and Mitchell, JH and Mkrtchyan, H and Mueller, BA and Nathan, AM and Niculescu, G and Niculescu, I and O'Neill, TG and Papavassiliou, V and Pate, SF and Piercey, RB and Potterveld, DH and Ransome, RD and Reinhold, J and Rollinde, E and Roos, P and Saha, A and Sawafta, R and Segbefia, E and Shin, T and Stepanyan, S and Strauch, S and Sutter, MF and Tadevosyan,
V and Tang, L and Tieulent, R and Uzzle, A and Vulcan, WF and Wood, SA and Xiong, F and Yuan, L and Zeier, M and Zihlmann, B and Ziskin, V and Baker,
OK and Danagoulian, S and Gilman, R and Holt, RJ and Keppel, CE and Sarty,
AJ},
Title = {Measurement of the high energy two-body deuteron
photodisintegration differential cross section},
Journal = {Physical Review Letters},
Volume = {87},
Number = {10},
Pages = {102302/1-102302/4},
Year = {2001},
Month = {September},
Abstract = {The first measurements of the d(γ,p)n differential cross
section up to Eγ=5.5 GeV were carried out. Results at θcm
= 70° remain consistent with the scaling previously
observed in JLAB E89-012. At θcm=53° there appears to be a
scaling threshold for Egamma≥3 GeV.},
Key = {fds336444}
}
@article{fds372404,
Author = {Adhikari, S and Afzal, F and Akondi, CS and Albrecht, M and Amaryan, M and Arroyave, V and Asaturyan, A and Austregesilo, A and Baldwin, Z and Barbosa, F and Barlow, J and Barriga, E and Barsotti, R and Beattie, TD and Berdnikov, VV and Black, T and Boeglin, W and Briscoe, WJ and Britton,
T and Brooks, WK and Byer, D and Chudakov, E and Cole, PL and Cortes, O and Crede, V and Dalton, MM and Darulis, D and Deur, A and Dobbs, S and Dolgolenko, A and Dotel, R and Dugger, M and Dzhygadlo, R and Ebersole,
D and Egiyan, H and Erbora, T and Eugenio, P and Fabrizi, A and Fanelli, C and Fang, S and Fegan, S and Fitches, J and Foda, AM and Furletov, S and Gan,
L and Gao, H and Gardner, A and Gasparian, A and Gleason, C and Goetzen, K and Goryachev, VS and Grube, B and Guo, J and Guo, L and Hague, TJ and Hakobyan, H and Hernandez, J and Hoffman, ND and Hornidge, D and Hou, G and Huber, GM and Hurck, P and Hurley, A and Imoehl, W and Ireland, DG and Ito,
MM and Jaegle, I and Jarvis, NS and Jeske, T and Jones, RT and Kakoyan, V and Kalicy, G and Khachatryan, V and Khatchatryan, M and Kourkoumelis, C and Laduke, A and Larin, I and Lawrence, D and Lersch, DI and Li, H and Li, WB and Liu, B and Livingston, K and Lolos, GJ and Lorenti, L and Lyubovitskij,
V and Mack, D and Mahmood, A and Martel, PP and Marukyan, H and Matveev, V and McCaughan, M and McCracken, M and Meyer, CA and Miskimen, R and Mitchell, RE and Mizutani, K and Neelamana, V and Ng, L and Nissen,
E},
Title = {Measurement of the J / ψ photoproduction cross section over
the full near-threshold kinematic region},
Journal = {Physical Review C},
Volume = {108},
Number = {2},
Year = {2023},
Month = {August},
url = {http://dx.doi.org/10.1103/PhysRevC.108.025201},
Abstract = {We report the total and differential cross sections for J/ψ
photoproduction with the large acceptance GlueX spectrometer
for photon beam energies from the threshold at 8.2 GeV up to
11.44 GeV and over the full kinematic range of momentum
transfer squared, t. Such coverage facilitates the
extrapolation of the differential cross sections to the
forward (t=0) point beyond the physical region. The forward
cross section is used by many theoretical models and plays
an important role in understanding J/ψ photoproduction and
its relation to the J/ψ-proton interaction. These
measurements of J/ψ photoproduction near threshold are also
crucial inputs to theoretical models that are used to study
important aspects of the gluon structure of the proton, such
as the gluon generalized parton distribution of the proton,
the mass radius of the proton, and the trace anomaly
contribution to the proton mass. We observe possible
structures in the total cross section energy dependence and
find evidence for contributions beyond gluon exchange in the
differential cross section close to threshold, both of which
are consistent with contributions from open-charm
intermediate states.},
Doi = {10.1103/PhysRevC.108.025201},
Key = {fds372404}
}
@article{fds246129,
Author = {Gao, H and Arrington, J and Beise, EJ and Bray, B and Carr, RW and Filippone, BW and Lung, A and McKeown, RD and Mueller, B and Pitt, ML and Jones, CE and DeSchepper, D and Dodson, G and Dow, K and Ent, R and Farkhondeh, M and Hansen, JO and Korsch, W and Kramer, LH and Lee, K and Makins, N and Milner, RG and Tieger, DR and Welch, TP and Candell, E and Napolitano, J and Wojtsekhowski, BB and Tripp, C and Lorenzon,
W},
Title = {Measurement of the neutron magnetic form factor from
inclusive quasielastic scattering of polarized electrons
from polarized He3},
Journal = {Physical Review C},
Volume = {50},
Number = {2},
Pages = {R546-R549},
Publisher = {American Physical Society (APS)},
Year = {1994},
Month = {January},
ISSN = {0556-2813},
url = {http://dx.doi.org/10.1103/PhysRevC.50.R546},
Abstract = {We report a measurement of the asymmetry in spin-dependent
quasielastic scattering of longitudinally polarized
electrons from a polarized He3 target. The neutron magnetic
form factor GMn has been extracted from the measured
asymmetry based on recent PWIA calculations using
spin-dependent spectral functions. Our determination of GMn
at Q2=0.19 (GeV/c)2 agrees with the dipole parametrization.
This experiment represents the first measurement of the
neutron magnetic form factor using spin-dependent electron
scattering. © 1994 The American Physical
Society.},
Doi = {10.1103/PhysRevC.50.R546},
Key = {fds246129}
}
@booklet{Ackerstaff97,
Author = {Ackerstaff, K and Airapetian, A and Akushevich, I and Akopov, N and Amarian, M and Aschenauer, EC and Avakian, R and Avakian, H and Avetissian, A and Bains, B and Barrow, S and Beckmann, M and Belostotski, S and Belz, JE and Benisch, T and Bernreuther, S and Bianchi, N and Blanchard, S and Blouw, J and Böttcher, H and Borissov,
A and Brack, J and Braun, B and Bray, B and Brückner, W and Briill, A and Bruins, EEW and Bulten, HJ and Capitani, GP and Carter, P and Cisbani,
E and Court, GR and Delheij, PPJ and Devitsin, E and de Jager, CW and de
Sanctis, E and de Schepper, D and de Witt Huberts and PKA and Düren, M and Dvoredsky, A and Elbakian, G and Fechtchenko, A and Ferstl, M and Fick,
D and Fiedler, K and Filippone, BW and Fischer, H and Fortune, HT and Franz, J and Frullani, S and Funk, MA and Gagunashvili, ND and Galumian,
P and Gao, H and Gärber, Y and Garibaldi, F and Geiger, P and Gharibyan,
V and Golendoukhin, A and Graw, G and Grebeniouk, O and Green, PW and Greeniaus, LG and Grosshauser, C and Gute, A and Gyurjyan, V and Haas,
JP and Haeberli, W and Hansen, JO and Hasch, D and Häusser, O and Henderson, RS and Henkes, T and Hertenberger, R and Holler, Y and Holt,
RJ and Ihssen, H and Iodice, M and Izotov, A and Jackson, HE and Jgoun, A and Jones, C and Kaiser, R and Kinney, E and Kirsch, M and Kisselev, A and Kitching, P and Koch, N and Königsmann, K and Kolstein, M and Kolster,
H and Korsch, W and Kozlov, V and Kramer, LH and Krause, B and Krivokhijine, VG and Kückes, M and Kyle, G and Lachnit, W and Lorenzon,
W},
Title = {Measurement of the neutron spin structure function
gn1 with a polarized 3He
internal target},
Journal = {Physics Letters, Section B: Nuclear, Elementary Particle and
High-Energy Physics},
Volume = {404},
Number = {3-4},
Pages = {383-389},
Publisher = {Elsevier BV},
Year = {1997},
Month = {July},
ISSN = {0370-2693},
url = {http://dx.doi.org/10.1016/S0370-2693(97)00611-4},
Abstract = {Results are reported from the HERMES experiment at HERA on a
measurement of the neutron spin structure function gn1(x,
Q2) in deep inelastic scattering using 27.5 GeV
longitudinally polarized positrons incident on a polarized
3He internal gas target. The data cover the kinematic range
0.023 < x < 0.6 and 1 (GeV/c)2 < Q2 < 15 (GeV/c)2. The
integral ∫0.60.023 gn1(x) dx evaluated at a fixed Q2 of
2.5 (GeV/c)2 is -0.034 ± 0.013(stat.) ±0.005(syst.).
Assuming Regge behavior at low x, the first moment Γn1 =
∫10 gn1(x) dx is -0.037 ± 0.013(stat.) ±0.005(syst.)
±0.006(extrapol.). © 1997 Published by Elsevier Science
B.V.},
Doi = {10.1016/S0370-2693(97)00611-4},
Key = {Ackerstaff97}
}
@article{fds246092,
Author = {Ackerstaff, K and Airapetian, A and Akushevich, I and Akopov, N and Amarian, M and Aschenauer, EC and Avakian, R and Avakian, H and Avetissian, A and Bains, B and Barrow, S and Beckmann, M and Belostotski, S and Belz, JE and Benisch, T and Bernreuther, S and Bianchi, N and Blanchard, S and Blouw, J and Böttcher, H and Borissov,
A and Brack, J and Braun, B and Bray, B and Brückner, W and Briill, A and Bruins, EEW and Bulten, HJ and Capitani, GP and Carter, P and Cisbani,
E and Court, GR and Delheij, PPJ and Devitsin, E and Jager, CWD and Sanctis, ED and Schepper, DD and Huberts, PKADW and Düren, M and Dvoredsky, A and Elbakian, G and Fechtchenko, A and Ferstl, M and Fick,
D and Fiedler, K and Filippone, BW and Fischer, H and Fortune, HT and Franz, J and Frullani, S and Funk, MA and Gagunashvili, ND and Galumian,
P and Gao, H and Gärber, Y and Garibaldi, F and Geiger, P and Gharibyan,
V and Golendoukhin, A and Graw, G and Grebeniouk, O and Green, PW and Greeniaus, LG and Grosshauser, C and Gute, A and Gyurjyan, V and Haas,
JP and Haeberli, W and Hansen, JO and Hasch, D and Häusser, O and Henderson, RS and Henkes, T and Hertenberger, R and Holler, Y and Holt,
RJ and Ihssen, H and Iodice, M and Izotov, A and Jackson, HE and Jgoun, A and Jones, C and Kaiser, R and Kinney, E and Kirsch, M and Kisselev, A and Kitching, P and Koch, N and Königsmann, K and Kolstein, M and Kolster,
H and Korsch, W and Kozlov, V and Kramer, LH and Krause, B and Krivokhijine, VG and Kückes, M and Kyle, G and Lachnit, W and Lorenzon,
W and Lung, A and Makins, NCR and Manaenkov, SI and Martens, FK and Martin,
JW and Mateos, A and Mcllhany, K and McKeown, RD and Meissner, F and Mercer, D and Metz, A and Meyners, N and Mikloukho, O and Miller, CA and Miller, MA and Milner, RG and Mitsyn, V and Most, A and Mozzetti, R and Muccifora, V and Nagaitsev, A and Naryshkin, Y and Nathan, AM and Neunreither, F and Niczyporuk, M and Nowak, WD and Nupieri, M and Oelwein, P and Ogami, H and O'Neill, TG and Openshaw, R and Papavassiliou, V and Pate, SF and Pitt, M and Potashov, S and Potterveld, DH and Povh, B and Rakness, G and Redwine, R and Reolon, AR and Ristinen, R and Rith, K and Röper, G and Roloff, H and Rossi, P and Rudnitsky, S and Ruh, M and Ryckbosch, D and Sakemi, Y and Savin, I and Schüler, KP and Schwind, A and Shibata, TA and Shin, T and Simon, A and Sinram, K and Smythe, WR and Sowinski, J and Spengos, M and Steffens, E and Stenger, J and Stewart, J and Stock, F and Stoesslein, U and Sutter, M and Tallini, H and Taroian, S and Terkulov, A and Thiessen, DM and Tipton,
B and Trudel, A and Tytgat, M and Urciuoli, GM and Vyver, RVD and Brand,
JFJVD and Steenhoven, GVD and Vetterli, MC and Volk, E and Wander, W and Welch, TP and Williamson, SE and Wise, T and Wölfel, T and Zapfe-Düren, K and Zohrabian, H and Zurmühle,
R},
Title = {Measurement of the neutron spin structure function
gn1 with a polarized 3He
internal target},
Journal = {Physics Letters, Section B: Nuclear, Elementary Particle and
High-Energy Physics},
Volume = {404},
Number = {3-4},
Pages = {383-389},
Year = {1997},
ISSN = {0370-2693},
Abstract = {Results are reported from the HERMES experiment at HERA on a
measurement of the neutron spin structure function gn1(x,
Q2) in deep inelastic scattering using 27.5 GeV
longitudinally polarized positrons incident on a polarized
3He internal gas target. The data cover the kinematic range
0.023 < x < 0.6 and 1 (GeV/c)2 < Q2 < 15
(GeV/c)2. The integral ∫0.60.023 gn1(x) dx evaluated at a
fixed Q2 of 2.5 (GeV/c)2 is -0.034 ± 0.013(stat.)
±0.005(syst.). Assuming Regge behavior at low x, the first
moment Γn1 = ∫10 gn1(x) dx is -0.037 ± 0.013(stat.)
±0.005(syst.) ±0.006(extrapol.). © 1997 Published by
Elsevier Science B.V.},
Key = {fds246092}
}
@article{fds246188,
Author = {H. Gao and al, AAE and Collaboration, HERMES},
Title = {Measurement of the proton spin structure function
g1p},
Journal = {Phys. Lett.},
Volume = {B442},
Number = {1-4},
Pages = {484},
Year = {1998},
ISSN = {0370-2693},
Abstract = {A measurement of the proton spin structure function
g1p(x,Q2) in deep-inelastic scattering is presented. The
data were taken with the 27.6 GeV longitudinally polarised
positron beam at HERA incident on a longitudinally polarised
pure hydrogen gas target internal to the storage ring. The
kinematic range is 0.021 < x < 0.85 and 0.8 GeV2 <
Q2 < 20 GeV2. The integral 0.0210.85(x) dx evaluated at
Q02 of 2.5 GeV2 is 0.122 ± 0.003(stat.) ± 0.010(syst).
© 1998 Published by Elsevier Science B.V. All rights
reserved.},
Key = {fds246188}
}
@article{fds304541,
Author = {Airapetian, A and Akopov, N and Akushevich, I and Amarian, M and Aschenauer, EC and Avakian, H and Avakian, R and Avetissian, A and Bains, B and Baumgarten, C and Beckmann, M and Belostotski, S and Belz,
E and Benisch, T and Bernreuther, S and Bianchi, N and Blouw, J and Böttcher, H and Borissov, A and Brack, J and Brauksiepe, S and Braun,
B and Brons, S and Brückner, W and Brüll, A and Bulten, HJ and Capitani,
GP and Carter, P and Chumney, P and Cisbani, E and Court, GR and Dalpiaz,
PF and De Leo and R and De Sanctis and E and De Schepper and D and Devitsin, E and de Witt Huberts and PKA and Di Nezza and P and Düren, M and Dvoredsky, A and Elbakian, G and Ely, J and Fantoni, A and Fechtchenko, A and Ferstl, M and Fick, D and Fiedler, K and Filippone, BW and Fischer, H and Fox, B and Frabetti, S and Franz, J and Frullani, S and Funk, MA and Gagunashvili,
ND and Gao, H and Gärber, Y and Garibaldi, F and Gavrilov, G and Geiger,
P and Gharibyan, V and Giordjian, V and Golendukhin, A and Graw, G and Grebeniouk, O and Green, PW and Greeniaus, LG and Grosshauser, C and Guidal, M and Gute, A and Haeberli, W and Hansen, JO and Hasch, D and Heinsius, FH and Henoch, M and Hertenberger, R and Holler, Y and Holt,
RJ and Hoprich, W and Ihssen, H and Iodice, M and Izotov, A and Jackson,
HE and Jgoun, A and Kaiser, R and Kinney, E and Kisselev, A and Kitching,
P and Kobayashi, H and Koch, N and Königsmann, K and Kolstein, M and Kolster, H and Korotkov, V and Korsch, W and Kozlov, V and Kramer, LH and Krivokhijine, VG and Kümmell, F and Kurisuno,
M},
Title = {Measurement of the proton spin structure function
g1p with a pure hydrogen
target},
Journal = {Physics Letters, Section B: Nuclear, Elementary Particle and
High-Energy Physics},
Volume = {442},
Number = {1-4},
Pages = {484-492},
Publisher = {Elsevier BV},
Year = {1998},
Month = {December},
ISSN = {0370-2693},
url = {http://dx.doi.org/10.1016/S0370-2693(98)01341-0},
Abstract = {A measurement of the proton spin structure function
g1p(x,Q2) in deep-inelastic scattering is presented. The
data were taken with the 27.6 GeV longitudinally polarised
positron beam at HERA incident on a longitudinally polarised
pure hydrogen gas target internal to the storage ring. The
kinematic range is 0.021 < x < 0.85 and 0.8 GeV2 < Q2 < 20
GeV2. The integral 0.0210.85(x) dx evaluated at Q02 of 2.5
GeV2 is 0.122 ± 0.003(stat.) ± 0.010(syst). © 1998
Published by Elsevier Science B.V. All rights
reserved.},
Doi = {10.1016/S0370-2693(98)01341-0},
Key = {fds304541}
}
@article{fds246164,
Author = {al, CCE},
Title = {Measurement of the Proton's Electric to Magn etic Form
Factor Ratio from 1H-vector(e-vector,e[prime]p)},
Journal = {Phys. Rev. Lett.},
Volume = {98},
Pages = {052301},
Year = {2007},
Key = {fds246164}
}
@booklet{Mueller97,
Author = {Mueller, B and Beck, DH and Beise, EJ and Candell, E and Cardman, L and Carr, R and DiBari, RC and Dodson, G and Dow, K and Duncan, F and Farkhondeh, M and Filippone, BW and Forest, T and Gao, H and Korsch, W and Kowalski, S and Lung, A and McKeown, RD and Mohring, R and Napolitano,
J and Nilsson, D and Pitt, M and Simicevic, N and Terburg, B and Wells,
SP},
Title = {Measurement of the proton’s neutral weak magnetic form
factor},
Journal = {Physical Review Letters},
Volume = {78},
Number = {20},
Pages = {3824-3827},
Publisher = {American Physical Society (APS)},
Year = {1997},
Month = {January},
url = {http://dx.doi.org/10.1103/PhysRevLett.78.3824},
Abstract = {We report the first measurement of the parity-violating
asymmetry in elastic electron scattering from the proton.
The asymmetry depends on the neutral weak magnetic form
factor of the proton which contains new information on the
contribution of strange quark-antiquark pairs to the
magnetic moment of the proton. We obtain the value Gmz =
0.34 ± 0.09 ± 0.04 ± 0.05 n.m. at Q2 = 0.1 (GeV/c)2. ©
1997 American Physical Society.},
Doi = {10.1103/PhysRevLett.78.3824},
Key = {Mueller97}
}
@article{fds346528,
Author = {Long, E and Zhang, YW and Mihovilovič, M and Jin, G and Sulkosky, V and Kelleher, A and Anderson, B and Higinbotham, DW and Širca, S and Allada, K and Annand, JRM and Averett, T and Bertozzi, W and Boeglin, W and Bradshaw, P and Camsonne, A and Canan, M and Cates, GD and Chen, C and Chen, JP and Chudakov, E and De Leo and R and Deng, X and Deur, A and Dutta,
C and El Fassi and L and Flay, D and Frullani, S and Garibaldi, F and Gao, H and Gilad, S and Gilman, R and Glamazdin, O and Golge, S and Gomez, J and Hansen, JO and Holmstrom, T and Huang, J and Ibrahim, H and de Jager,
CW and Jensen, E and Jiang, X and Jones, M and Kang, H and Katich, J and Khanal, HP and King, PM and Korsch, W and LeRose, J and Lindgren, R and Lu,
HJ and Luo, W and Markowitz, P and Meziane, M and Michaels, R and Moffit,
B and Monaghan, P and Muangma, N and Nanda, S and Norum, BE and Pan, K and Parno, D and Piasetzky, E and Posik, M and Punjabi, V and Puckett, AJR and Qian, X and Qiang, Y and Qui, X and Riordan, S and Saha, A and Sawatzky, B and Shabestari, M and Shahinyan, A and Shoenrock, B and St. John and J and Subedi, R and Tobias, WA and Tireman, W and Urciuoli, GM and Wang, D and Wang, K and Wang, Y and Watson, J and Wojtsekhowski, B and Ye, Z and Zhan,
X and Zhang, Y and Zheng, X and Zhao, B and Zhu, L},
Title = {Measurement of the single-spin asymmetry
Ay0 in quasi-elastic
3He↑(e,e′n) scattering at
0.4 < Q2 < 1.0 GeV/c2},
Journal = {Physics Letters, Section B: Nuclear, Elementary Particle and
High-Energy Physics},
Volume = {797},
Year = {2019},
Month = {October},
url = {http://dx.doi.org/10.1016/j.physletb.2019.134875},
Abstract = {Due to the lack of free neutron targets, studies of the
structure of the neutron are typically made by scattering
electrons from either 2H or 3He targets. In order to extract
useful neutron information from a 3He target, one must
understand how the neutron in a 3He system differs from a
free neutron by taking into account nuclear effects such as
final state interactions and meson exchange currents. The
target single spin asymmetry Ay0 is an ideal probe of such
effects, as any deviation from zero indicates effects beyond
plane wave impulse approximation. New measurements of the
target single spin asymmetry Ay0 at Q2 of 0.46 and 0.96
(GeV/c)2 were made at Jefferson Lab using the quasi-elastic
He↑3(e,e′n) reaction. Our measured asymmetry decreases
rapidly, from >20% at Q2=0.46 (GeV/c)2 to nearly zero at
Q2=0.96 (GeV/c)2, demonstrating the fall-off of the reaction
mechanism effects as Q2 increases. We also observed a small
ϵ-dependent increase in Ay0 compared to previous
measurements, particularly at moderate Q2. This indicates
that upcoming high Q2 measurements from the Jefferson Lab 12
GeV program can cleanly probe neutron structure from
polarized 3He using plane wave impulse approximation.},
Doi = {10.1016/j.physletb.2019.134875},
Key = {fds346528}
}
@booklet{Jones95,
Author = {Jones, CE and Arrington, J and Beise, EJ and Bray, B and Carr, RW and Filippone, BW and Gao, H and Lung, A and McKeown, RD and Mueller, B and Pitt, ML and Deschepper, D and Dodson, G and Dow, K and Ent, R and Farkhondeh, M and Hansen, JO and Korsch, W and Kramer, LH and Lee, K and Makins, NCR and Milner, RG and Tieger, DR and Welch, TP and Candell, E and Napolitano, J and Tripp, C and Wojtsekhowski, BB and Lorenzon,
W},
Title = {Measurement of the spin-dependent asymmetry in 3(e,e)
inelastic scattering at low energy transfer},
Journal = {Physical Review C},
Volume = {52},
Number = {3},
Pages = {1520-1523},
Publisher = {American Physical Society (APS)},
Year = {1995},
Month = {January},
ISSN = {0556-2813},
url = {http://dx.doi.org/10.1103/PhysRevC.52.1520},
Abstract = {We present the results of a measurement of the
spin-dependent asymmetry in 3(e,e) inelastic scattering at
kinematics on the low-energy transfer side of the
quasielastic peak, including the region near the breakup
threshold. Comparison with existing calculations based upon
the plane wave impulse approximation shows significant
deviation between the data and the model near the breakup
threshold. Good agreement between data and theory is seen at
higher energy transfer. © 1995 The American Physical
Society.},
Doi = {10.1103/PhysRevC.52.1520},
Key = {Jones95}
}
@article{fds246009,
Author = {Katich, J and Qian, X and Zhao, YX and Allada, K and Aniol, K and Annand,
JRM and Averett, T and Benmokhtar, F and Bertozzi, W and Bradshaw, PC and Bosted, P and Camsonne, A and Canan, M and Cates, GD and Chen, C and Chen,
J-P and Chen, W and Chirapatpimol, K and Chudakov, E and Cisbani, E and Cornejo, JC and Cusanno, F and Dalton, MM and Deconinck, W and de Jager,
CW and De Leo and R and Deng, X and Deur, A and Ding, H and Dolph, PAM and Dutta,
C and Dutta, D and El Fassi and L and Frullani, S and Gao, H and Garibaldi, F and Gaskell, D and Gilad, S and Gilman, R and Glamazdin, O and Golge, S and Guo, L and Hamilton, D and Hansen, O and Higinbotham, DW and Holmstrom,
T and Huang, J and Huang, M and Ibrahim, HF and Iodice, M and Jiang, X and Jin, G and Jones, MK and Kelleher, A and Kim, W and Kolarkar, A and Korsch,
W and LeRose, JJ and Li, X and Li, Y and Lindgren, R and Liyanage, N and Long,
E and Lu, H-J and Margaziotis, DJ and Markowitz, P and Marrone, S and McNulty, D and Meziani, Z-E and Michaels, R and Moffit, B and Muñoz
Camacho, C and Nanda, S and Narayan, A and Nelyubin, V and Norum, B and Oh,
Y and Osipenko, M and Parno, D and Peng, JC and Phillips, SK and Posik, M and Puckett, AJR and Qiang, Y and Rakhman, A and Ransome, RD and Riordan, S and Saha, A and Sawatzky, B and Schulte, E and Shahinyan, A and Shabestari,
MH and Širca, S and Stepanyan, S and Subedi, R and Sulkosky, V and Tang,
L-G and Tobias, A and Urciuoli, GM and Vilardi, I and Wang, K and Wang, Y and Wojtsekhowski, B and Yan, X and Yao, H and Ye, Y and Ye, Z and Yuan, L and Zhan, X and Zhang, Y and Zhang, Y-W and Zhao, B and Zheng, X and Zhu, L and Zhu, X and Zong, X},
Title = {Measurement of the target-normal single-spin asymmetry in
deep-inelastic scattering from the reaction
(3)He(↑)(e,e')X.},
Journal = {Physical review letters},
Volume = {113},
Number = {2},
Pages = {022502},
Year = {2014},
Month = {July},
ISSN = {0031-9007},
url = {http://dx.doi.org/10.1103/physrevlett.113.022502},
Abstract = {We report the first measurement of the target-normal
single-spin asymmetry in deep-inelastic scattering from the
inclusive reaction 3)He(↑)(e,e')X on a polarized (3)He gas
target. Assuming time-reversal invariance, this asymmetry is
strictly zero in the Born approximation but can be nonzero
if two-photon-exchange contributions are included. The
experiment, conducted at Jefferson Lab using a 5.89 GeV
electron beam, covers a range of 1.7<W<2.9 GeV,
1.0<Q(2)<4.0 GeV(2) and 0.16<x<0.65. Neutron
asymmetries were extracted using the effective nucleon
polarization and measured proton-to-(3)He cross-section
ratios. The measured neutron asymmetries are negative with
an average value of (-1.09±0.38)×10(-2) for invariant mass
W>2 GeV, which is nonzero at the 2.89σ level. Our
measured asymmetry agrees both in sign and magnitude with a
two-photon-exchange model prediction that uses input from
the Sivers transverse momentum distribution obtained from
semi-inclusive deep-inelastic scattering.},
Doi = {10.1103/physrevlett.113.022502},
Key = {fds246009}
}
@article{fds326110,
Author = {Zhang, Y-W and Long, E and Mihovilovič, M and Jin, G and Allada, K and Anderson, B and Annand, JRM and Averett, T and Ayerbe-Gayoso, C and Boeglin, W and Bradshaw, P and Camsonne, A and Canan, M and Cates, GD and Chen, C and Chen, JP and Chudakov, E and De Leo and R and Deng, X and Deur, A and Dutta, C and El Fassi and L and Flay, D and Frullani, S and Garibaldi, F and Gao, H and Gilad, S and Gilman, R and Glamazdin, O and Golge, S and Gomez,
J and Hansen, O and Higinbotham, DW and Holmstrom, T and Huang, J and Ibrahim, H and de Jager, CW and Jensen, E and Jiang, X and St John and J and Jones, M and Kang, H and Katich, J and Khanal, HP and King, P and Korsch,
W and LeRose, J and Lindgren, R and Lu, H-J and Luo, W and Markowitz, P and Meziane, M and Michaels, R and Moffit, B and Monaghan, P and Muangma, N and Nanda, S and Norum, BE and Pan, K and Parno, D and Piasetzky, E and Posik,
M and Punjabi, V and Puckett, AJR and Qian, X and Qiang, Y and Qiu, X and Riordan, S and Ron, G and Saha, A and Sawatzky, B and Schiavilla, R and Schoenrock, B and Shabestari, M and Shahinyan, A and Širca, S and Subedi, R and Sulkosky, V and Tobias, WA and Tireman, W and Urciuoli,
GM and Wang, D and Wang, K and Wang, Y and Watson, J and Wojtsekhowski, B and Ye, Z and Zhan, X and Zhang, Y and Zheng, X and Zhao, B and Zhu, L and Jefferson Lab Hall A Collaboration},
Title = {Measurement of the Target-Normal Single-Spin Asymmetry in
Quasielastic Scattering from the Reaction
(3)He(↑)(e,e').},
Journal = {Physical review letters},
Volume = {115},
Number = {17},
Pages = {172502},
Year = {2015},
Month = {October},
url = {http://dx.doi.org/10.1103/physrevlett.115.172502},
Abstract = {We report the first measurement of the target single-spin
asymmetry, A(y), in quasielastic scattering from the
inclusive reaction (3)He(↑)(e,e') on a (3)He gas target
polarized normal to the lepton scattering plane. Assuming
time-reversal invariance, this asymmetry is strictly zero
for one-photon exchange. A nonzero A(y) can arise from the
interference between the one- and two-photon exchange
processes which is sensitive to the details of the
substructure of the nucleon. An experiment recently
completed at Jefferson Lab yielded asymmetries with high
statistical precision at Q(2)=0.13, 0.46, and
0.97 GeV(2). These measurements demonstrate, for the
first time, that the (3)He asymmetry is clearly nonzero and
negative at the 4σ-9σ level. Using measured
proton-to-(3)He cross-section ratios and the effective
polarization approximation, neutron asymmetries of -(1-3)%
were obtained. The neutron asymmetry at high Q(2) is related
to moments of the generalized parton distributions (GPDs).
Our measured neutron asymmetry at Q(2)=0.97 GeV(2)
agrees well with a prediction based on two-photon exchange
using a GPD model and thus provides a new, independent
constraint on these distributions.},
Doi = {10.1103/physrevlett.115.172502},
Key = {fds326110}
}
@article{fds331381,
Author = {DeGrush, A and Maschinot, A and Akdogan, T and Alarcon, R and Bertozzi,
W and Booth, E and Botto, T and Calarco, JR and Clasie, B and Crawford, C and Dow, K and Farkhondeh, M and Fatemi, R and Filoti, O and Franklin, W and Gao, H and Geis, E and Gilad, S and Hasell, DK and Karpius, P and Kohl, M and Kolster, H and Lee, T and Matthews, J and McIlhany, K and Meitanis, N and Milner, R and Rapaport, J and Redwine, R and Seely, J and Shinozaki, A and Sindile, A and Širca, S and Six, E and Smith, T and Tonguc, B and Tschalär, C and Tsentalovich, E and Turchinetz, W and Xiao, Y and Xu,
W and Zhou, Z-L and Ziskin, V and Zwart, T and BLAST
Collaboration},
Title = {Measurement of the Vector and Tensor Asymmetries at Large
Missing Momentum in Quasielastic (e[over →],e^{'}p)
Electron Scattering from Deuterium.},
Journal = {Physical review letters},
Volume = {119},
Number = {18},
Pages = {182501},
Year = {2017},
Month = {November},
url = {http://dx.doi.org/10.1103/physrevlett.119.182501},
Abstract = {We report the measurement of the beam-vector and tensor
asymmetries A_{ed}^{V} and A_{d}^{T} in quasielastic (e[over
→],e^{'}p) electrodisintegration of the deuteron at the
MIT-Bates Linear Accelerator Center up to missing momentum
of 500 MeV/c. Data were collected simultaneously over a
momentum transfer range 0.1<Q^{2}<0.5 (GeV/c)^{2} with
the Bates Large Acceptance Spectrometer Toroid using an
internal deuterium gas target polarized sequentially in both
vector and tensor states. The data are compared with
calculations. The beam-vector asymmetry A_{ed}^{V} is found
to be directly sensitive to the D-wave component of the
deuteron and has a zero crossing at a missing momentum of
about 320 MeV/c, as predicted. The tensor asymmetry
A_{d}^{T} at large missing momentum is found to be dominated
by the influence of the tensor force in the neutron-proton
final-state interaction. The new data provide a strong
constraint on theoretical models.},
Doi = {10.1103/physrevlett.119.182501},
Key = {fds331381}
}
@article{fds320332,
Author = {Flay, D and Posik, M and Parno, DS and Allada, K and Armstrong, WR and Averett, T and Benmokhtar, F and Bertozzi, W and Camsonne, A and Canan,
M and Cates, GD and Chen, C and Chen, JP and Choi, S and Chudakov, E and Cusanno, F and Dalton, MM and Deconinck, W and De Jager and CW and Deng, X and Deur, A and Dutta, C and Fassi, LE and Franklin, GB and Friend, M and Gao,
H and Garibaldi, F and Gilad, S and Gilman, R and Glamazdin, O and Golge,
S and Gomez, J and Guo, L and Hansen, O and Higinbotham, DW and Holmstrom,
T and Huang, J and Hyde, C and Ibrahim, HF and Jiang, X and Jin, G and Katich,
J and Kelleher, A and Kolarkar, A and Korsch, W and Kumbartzki, G and LeRose, JJ and Lindgren, R and Liyanage, N and Long, E and Lukhanin, A and Mamyan, V and McNulty, D and Meziani, ZE and Michaels, R and Mihovilovič, M and Moffit, B and Muangma, N and Nanda, S and Narayan,
A and Nelyubin, V and Norum, B and Nuruzzaman, and Oh, Y and Peng, JC and Qian, X and Qiang, Y and Rakhman, A and Ransome, RD and Riordan, S and Saha, A and Sawatzky, B and Shabestari, MH and Shahinyan, A and Širca,
S and Solvignon, P and Subedi, R and Sulkosky, V and Tobias, WA and Troth,
W and Wang, D and Wang, Y and Wojtsekhowski, B and Yan, X and Yao, H and Ye,
Y and Ye, Z and Yuan, L and Zhan, X and Zhang, Y and Zhang, YW and Zhao, B and Zheng, X},
Title = {Measurements of d2n and A1n: Probing the neutron spin
structure},
Journal = {Physical Review D},
Volume = {94},
Number = {5},
Publisher = {American Physical Society (APS)},
Year = {2016},
Month = {September},
url = {http://dx.doi.org/10.1103/PhysRevD.94.052003},
Abstract = {We report on the results of the E06-014 experiment performed
at Jefferson Lab in Hall A, where a precision measurement of
the twist-3 matrix element d2 of the neutron (d2n) was
conducted. The quantity d2n represents the average color
Lorentz force a struck quark experiences in a deep inelastic
electron scattering event off a neutron due to its
interaction with the hadronizing remnants. This color force
was determined from a linear combination of the third
moments of the He3 spin structure functions, g1 and g2,
after nuclear corrections had been applied to these moments.
The structure functions were obtained from a measurement of
the unpolarized cross section and of double-spin asymmetries
in the scattering of a longitudinally polarized electron
beam from a transversely and a longitudinally polarized He3
target. The measurement kinematics included two average Q2
bins of 3.2 GeV2 and 4.3 GeV2, and Bjorken-x 0.25≤x≤0.90
covering the deep inelastic and resonance regions. We have
found that d2n is small and negative for Q2©=3.2 GeV2, and
even smaller for Q2 ©=4.3 GeV2, consistent with the results
of a lattice QCD calculation. The twist-4 matrix element f2n
was extracted by combining our measured d2n with the world
data on the first moment in x of g1n, Γ1n. We found f2n to
be roughly an order of magnitude larger than d2n. Utilizing
the extracted d2n and f2n data, we separated the Lorentz
color force into its electric and magnetic components, FEy,n
and FBy,n, and found them to be equal and opposite in
magnitude, in agreement with the predictions from an
instanton model but not with those from QCD sum rules.
Furthermore, using the measured double-spin asymmetries, we
have extracted the virtual photon-nucleon asymmetry on the
neutron A1n, the structure function ratio g1n/F1n, and the
quark ratios (Δu+Δū)/(u+ū) and (Δd+Δd)/(d+d). These
results were found to be consistent with deep-inelastic
scattering world data and with the prediction of the
constituent quark model but at odds with the perturbative
quantum chromodynamics predictions at large
x.},
Doi = {10.1103/PhysRevD.94.052003},
Key = {fds320332}
}
@article{fds246186,
Author = {H. Gao and Bochna, C and Terburg, BP and Abbott, DJ and Ahmidouch, A and Armstrong,
CS and Arrington, J and Assamagan, KA and Baker, OK and Barrow, SP and Beatty, DP and Beck, DH and Beedoe, SY and Beise, EJ and Belz, JE and Bosted, PE and Brash, EJ and Breuer, H and Cadman, RV and Cardman, L and Carlini, RD and Cha, J and Chant, NS and Collins, G and Cothran, C and Cummings, WJ and Danagoulian, S and Duncan, FA and Dunne, JA and Dutta,
D and Eden, T and Ent, R and Filippone, BW and Forest, TA and Fortune, HT and Frolov, VV and Gao, H and Geesaman, DF and Gilman, R and Gueye, PLJ and Gustafsson, KK and Hansen, JO and Harvey, M and Hinton, W and Holt, RJ and Jackson, HE and Keppel, CE and Khandaker, MA and Kinney, ER and Klein,
A and Koltenuk, DM and Kumbartzki, G and Lung, AF and Mack, DJ and Madey,
R and Markowitz, P and McFarlane, KW and McKeown, RD and Meekins, DG and Meziani, ZE and Miller, MA and Mitchell, JH and Mkrtchyan, HG and Mohring, RM and Napolitano, J and Nathan, AM and Niculescu, G and Niculescu, I and O'Neill, TG and Owen, BR and Pate, SF and Potterveld,
DH and Price, JW and Rakness, GL and Ransome, R and Reinhold, J and Rutt,
PM and Salgado, CW and Savage, G and Segel, RE and Simicevic, N and Stoler,
P and Suleiman, R and Tang, L and van Westrum, D and Vulcan, WF and Williamson, S and Witkowski, MT and Wood, SA and Yan, C and Zeidman,
B},
Title = {Measurements of deuteron photodisintegration up to 4.0
GeV},
Journal = {Physical Review Letters},
Volume = {81},
Number = {21},
Pages = {4576-4579},
Publisher = {American Physical Society (APS)},
Year = {1998},
Month = {January},
url = {http://dx.doi.org/10.1103/PhysRevLett.81.4576},
Abstract = {The first measurements of the differential cross section for
the d(γ, p)n reaction up to 4.0 GeV were performed at the
Continuous Electron Beam Accelerator Facility (CEBAF) at
Thomas Jefferson Laboratory. We report the cross sections at
the proton center-of-mass angles of 36°, 52°, 69°, and
89°. These results are in reasonable agreement with
previous measurements at lower energy. The 89° and 69°
data show constituent-counting-rule behavior up to 4.0 GeV
photon energy. The 52° and 36° data disagree with the
counting-rule behavior. The quantum chromodynamics (QCD)
model of nuclear reactions involving reduced amplitudes
disagrees with the present data. © 1998 American Physical
Society.},
Doi = {10.1103/PhysRevLett.81.4576},
Key = {fds246186}
}
@article{fds246025,
Author = {Alexa, LC and Anderson, BD and Aniol, KA and Arundell, K and Auerbach,
L and Baker, FT and Berthot, J and Bertin, PY and Bertozzi, W and Bimbot,
L and Boeglin, WU and Brash, EJ and Breton, V and Breuer, H and Burtin, E and Calarco, JR and Cardman, LS and Cavata, C and Chang, CC and Chen, JP and Chudakov, E and Cisbani, E and Dale, DS and Degrande, N and De Leo and R and Deur, A and Hose, ND and Diederich, B and Domingo, JJ and Epstein, MB and Ewell, LA and Finn, JM and Fissum, KG and Fonvieille, H and Frois, B and Frullani, S and Gao, H and Gao, J and Garibaldi, F and Gasparian, A and Gilad, S and Gilman, R and Glamazdin, A and Glashausser, C and Gomez, J and Gorbenko, V and Hansen, JO and Holmes, R and Holtrop, M and Howell, C and Huber, GM and Hyde-Wright, C and Iodice, M and De Jager and CW and Jaminion, S and Jardillier, J and Jones, MK and Jutier, C and Kahl, W and Kato, S and Katramatou, AT and Kelly, JJ and Kerhoas, S and Ketikyan, A and Khayat, M and Kino, K and Kramer, LH and Kumar, KS and Kumbartzki, G and Kuss, M and Lavessière, G and Leone, A and Le Rose and JJ and Liang, M and Lindgren, RA and Liyanage, N and Lolos, GJ and Lourie, RW and Madey, R and Maeda, K and Malov, S and Manley, DM and Margaziotis, DJ and Markowitz,
P and Marroncle, J and Martino, J and Martoff, CJ and Mc Cormick and K and McIntyre, J and Van Der Meer and RLJ and Mehrabyan, S and Meziani, ZE and Michaels, R and Miller, GW and Mougey, JY and Nanda, SK and Neyret, D and Offermann, EAJM and Papandreou, Z and Perdrisat,
CF},
Title = {Measurements of the deuteron elastic structure function
A(Q2) for 0.7 ≤ Q2 ≤
6.0(GeV/c)2at jefferson laboratory},
Journal = {Physical Review Letters},
Volume = {82},
Number = {7},
Pages = {1374-1378},
Publisher = {American Physical Society (APS)},
Year = {1999},
Month = {January},
ISSN = {0031-9007},
url = {http://dx.doi.org/10.1103/PhysRevLett.82.1374},
Abstract = {The deuteron elastic structure function A(Q2) has been
extracted in the range 0.7 ≤ Q2 ≤ 6.0(GeV/c)2 from cross
section measurements of elastic electron-deuteron scattering
in coincidence using the Hall A Facility of Jefferson
Laboratory. The data are compared to theoretical models,
based on the impulse approximation with the inclusion of
meson-exchange currents, and to predictions of quark
dimensional scaling and perturbative quantum chromodynamics.
© 1999 The American Physical Society.},
Doi = {10.1103/PhysRevLett.82.1374},
Key = {fds246025}
}
@article{fds333214,
Author = {Solvignon, P and Liyanage, N and Chen, JP and Choi, S and Slifer, K and Aniol, K and Averett, T and Boeglin, W and Camsonne, A and Cates, GD and Chang, CC and Chudakov, E and Craver, B and Cusanno, F and Deur, A and Dutta, D and Ent, R and Feuerbach, R and Frullani, S and Gao, H and Garibaldi, F and Gilman, R and Glashausser, C and Gorbenko, V and Hansen, O and Higinbotham, DW and Ibrahim, H and Jiang, X and Jones, M and Kelleher, A and Kelly, J and Keppel, C and Kim, W and Korsch, W and Kramer,
K and Kumbartzki, G and Lerose, JJ and Lindgren, R and Ma, B and Margaziotis, DJ and Markowitz, P and McCormick, K and Meziani, ZE and Michaels, R and Moffit, B and Monaghan, P and Munoz Camacho and C and Paschke, K and Reitz, B and Saha, A and Shneor, R and Singh, J and Sulkosky, V and Tobias, A and Urciuoli, GM and Wang, K and Wijesooriya,
K and Wojtsekhowski, B and Woo, S and Yang, JC and Zheng, X and Zhu,
L},
Title = {Moments of the neutron g2 structure function at intermediate
Q2},
Journal = {Physical Review C - Nuclear Physics},
Volume = {92},
Number = {1},
Publisher = {American Physical Society (APS)},
Year = {2015},
Month = {July},
url = {http://dx.doi.org/10.1103/PhysRevC.92.015208},
Abstract = {We present new experimental results for the He3 spin
structure function g2 in the resonance region at Q2 values
between 1.2 and 3.0(GeV/c)2. Spin dependent moments of the
neutron were extracted. Our main result, the inelastic
contribution to the neutron d2 matrix element, was found to
be small at (Q2)=2.4(GeV/c)2 and in agreement with the
lattice QCD calculation. The Burkhardt-Cottingham sum rule
for He3 and the neutron was tested with the measured data
and using the Wandzura-Wilczek relation for the low x
unmeasured region.},
Doi = {10.1103/PhysRevC.92.015208},
Key = {fds333214}
}
@article{fds246175,
Author = {Makins, NCR and Ent, R and Chapman, MS and Hansen, JO and Lee, K and Milner, RG and Nelson, J and Arnold, RG and Bosted, PE and Keppel, CE and Lung, A and Rock, SE and Spengos, M and Szalata, ZM and Tao, LH and White,
JL and Coulter, KP and Geesaman, DF and Holt, RJ and Jackson, HE and Papavassiliou, V and Potterveld, DH and Zeidman, B and Arrington, J and Beise, EJ and Belz, E and Filippone, BW and Gao, H and Lorenzon, W and Mueller, B and McKeown, RD and O'Neill, TG and Epstein, M and Margaziotis, DJ and Napolitano, J and Kinney, E and Anthony, PL and Van
Bibber, K and Dietrich, FS and Gearhart, RA and Patratos, GG and Kuhn,
SE and Van Den Brand and JFJ and Bulten, HJ and Jones,
CE},
Title = {Momentum transfer dependence of nuclear transparency from
the quasielastic C12(e,e'p) reaction},
Journal = {Physical Review Letters},
Volume = {72},
Number = {13},
Pages = {1986-1989},
Publisher = {American Physical Society (APS)},
Year = {1994},
Month = {January},
ISSN = {0031-9007},
url = {http://dx.doi.org/10.1103/PhysRevLett.72.1986},
Abstract = {The cross section for quasielastic C12(e,e'p) scattering has
been measured at momentum transfer Q2=1, 3, 5, and 6.8
(GeV/c)2. The results are consistent with scattering from a
single nucleon as the dominant process. The nuclear
transparency is obtained and compared with theoretical
calculations that incorporate color transparency effects. No
significant rise of the transparency with Q2 is observed. ©
1994 The American Physical Society.},
Doi = {10.1103/PhysRevLett.72.1986},
Key = {fds246175}
}
@article{fds246140,
Author = {H. Gao and al, PAE},
Title = {Near Threshold Electropoduction of the omega meson at
Q^2=0.5 (GeV/c)^2},
Journal = {Phys. Rev. C},
Volume = {70},
Number = {3},
Pages = {035203},
Year = {2004},
ISSN = {0556-2813},
url = {http://dx.doi.org/10.1103/PhysRevC.70.035203},
Abstract = {Electroproduction of the ω meson was investigated in
1H(e,e′p)ω reaction. The measurement was performed
at a four-momentum transfer Q 2≈0.5 GeV 2. Angular
distributions of the virtual photon-proton
center-of-momentum cross sections have been extracted over
the full angular range. These distributions exhibit a strong
enhancement over t-channel parity exchange processes in the
backward direction. According to a newly developed
electroproduction model, this enhancement provides
significant evidence of resonance formation in the γ*p
→ ωp reaction channel.},
Doi = {10.1103/PhysRevC.70.035203},
Key = {fds246140}
}
@article{fds304555,
Author = {Ambrozewicz, P and Mitchell, J and Dunne, J and Markowitz, P and Martoff, CJ and Reinhold, J and Zeidman, B and Abbott, DJ and Ahmidouch,
A and Armstrong, CS and Arrington, J and Assamagan, KA and Bailey, K and Baker, OK and Beedoe, S and Breuer, H and Carlini, R and Cha, J and Collins, G and Cothran, C and Cummings, WJ and Danagoulian, S and Day,
D and Duncan, F and Dutta, D and Eden, T and Ent, R and Ewell, L and Fortune,
HT and Gao, H and Geesaman, DF and Gueye, P and Gustafsson, KK and Hansen,
JO and Hinton, W and Keppel, CE and Klein, A and Koltenuk, D and Mack, DJ and Madey, R and Meekins, DG and Mkrtchyan, H and Mohring, RM and Mtingwa,
SK and Niculescu, G and Niculescu, I and O'Neill, TG and Potterveld, D and Price, JW and Raue, BA and Roos, P and Savage, G and Sawafta, R and Segel,
RE and Stepanyan, S and Tadevosyan, V and Tang, L and Terburg, BP and Wood,
S and Yan, C and Zihlmann, B},
Title = {Near threshold electroproduction of the ω meson at Q
2≈0.5 GeV2},
Journal = {Physical Review C - Nuclear Physics},
Volume = {70},
Number = {3},
Pages = {0352031-0352039},
Year = {2004},
Month = {January},
ISSN = {0556-2813},
url = {http://dx.doi.org/10.1103/PhysRevC.70.035203},
Abstract = {Electroproduction of the ω meson was investigated in
1H(e,e′p)ω reaction. The measurement was performed at a
four-momentum transfer Q2≈0.5 GeV2. Angular distributions
of the virtual photon-proton center-of-momentum cross
sections have been extracted over the full angular range.
These distributions exhibit a strong enhancement over
t-channel parity exchange processes in the backward
direction. According to a newly developed electroproduction
model, this enhancement provides significant evidence of
resonance formation in the γ*p → ωp reaction
channel.},
Doi = {10.1103/PhysRevC.70.035203},
Key = {fds304555}
}
@article{fds246108,
Author = {al, HGWXQE},
Title = {Near-threshold Photoproduction of phi Mesons from
Deuterium},
Journal = {Phys. Lett. B},
Volume = {696},
Number = {4},
Pages = {338},
Publisher = {Elsevier BV},
Year = {2011},
ISSN = {0370-2693},
url = {http://dx.doi.org/10.1016/j.physletb.2010.12.065},
Abstract = {We report the first, kinematically-complete measurement of
the differential cross section of Φ-meson photoproduction
from deuterium near the production threshold for a proton
using the CLAS detector and a tagged-photon beam in Hall B
at Jefferson Lab. The measurement was carried out by a
triple coincidence detection of a proton, K+ and K- near the
theoretical production threshold of 1.57 GeV. The extracted
differential cross sections dσ/dt for the initial photon
energy range of 1.65-1.75 GeV are consistent with
predictions based on a quasifree mechanism. Our finding is
different from recent LEPS results on Φ-meson
photoproduction from deuterium in a similar incident photon
energy range, but in a different momentum transfer region.
© 2011 Elsevier B.V.},
Doi = {10.1016/j.physletb.2010.12.065},
Key = {fds246108}
}
@article{fds246071,
Author = {Gao, H and Chen, JP and Cisbani, E and Jiang, X and Peng, JC and Qian, X and Zhu, LY},
Title = {Neutron transversity measurement at Jefferson Lab with a
polarized 3He target},
Journal = {Few-Body Systems},
Volume = {41},
Number = {1-2},
Pages = {43-52},
Publisher = {Springer Nature},
Year = {2007},
Month = {December},
ISSN = {0177-7963},
url = {http://dx.doi.org/10.1007/s00601-007-0186-2},
Abstract = {A first measurement of single target spin asymmetry (SSA)
from semi-inclusive electroproduction of charged pions from
a transversely polarized 3He target in deep-inelastic-scattering
kinematics will take data in Hall A at Jefferson Lab in
2008. Such SSA will allow for an extraction of the much
desired information on the Collins and Sivers asymmetry from
the "neutron" in order to probe the quark transversity
distributions. The experiment will be a coincidence
measurement with the BigBite spectrometer detecting the
scattered electrons and the left-arm HRS spectrometer
detecting the charged pions. The prospect of future 11∈GeV
measurements at Jefferson Lab in Hall A using a solenoid
magnetic detector system is also discussed in this talk. ©
2007 Springer-Verlag.},
Doi = {10.1007/s00601-007-0186-2},
Key = {fds246071}
}
@article{fds246114,
Author = {al, HGWJSE},
Title = {New measurements of the EMC effect in very light
nuclei},
Journal = {Phys. Rev. Lett.},
Volume = {103},
Pages = {202301},
Year = {2009},
Key = {fds246114}
}
@article{fds246076,
Author = {Seely, J and Daniel, A and Gaskell, D and Arrington, J and Fomin, N and Solvignon, P and Asaturyan, R and Benmokhtar, F and Boeglin, W and Boillat, B and Bosted, P and Bruell, A and Bukhari, MHS and Christy, ME and Clasie, B and Connell, S and Dalton, MM and Day, D and Dunne, J and Dutta,
D and El Fassi and L and Ent, R and Fenker, H and Filippone, BW and Gao, H and Hill, C and Holt, RJ and Horn, T and Hungerford, E and Jones, MK and Jourdan, J and Kalantarians, N and Keppel, CE and Kiselev, D and Kotulla, M and Lee, C and Lung, AF and Malace, S and Meekins, DG and Mertens, T and Mkrtchyan, H and Navasardyan, T and Niculescu, G and Niculescu, I and Nomura, H and Okayasu, Y and Opper, AK and Perdrisat,
C and Potterveld, DH and Punjabi, V and Qian, X and Reimer, PE and Roche,
J and Rodriguez, VM and Rondon, O and Schulte, E and Segbefia, E and Slifer, K and Smith, GR and Tadevosyan, V and Tajima, S and Tang, L and Testa, G and Trojer, R and Tvaskis, V and Vulcan, WF and Wesselmann, FR and Wood, SA and Wright, J and Yuan, L and Zheng, X},
Title = {New measurements of the European Muon Collaboration effect
in very light nuclei.},
Journal = {Physical review letters},
Volume = {103},
Number = {20},
Pages = {202301},
Year = {2009},
Month = {November},
ISSN = {0031-9007},
url = {http://dx.doi.org/10.1103/physrevlett.103.202301},
Abstract = {New Jefferson Lab data are presented on the nuclear
dependence of the inclusive cross section from (2)H, (3)He,
(4)He, (9)Be and (12)C for 0.3 < x < 0.9, Q(2) approximately
3-6 GeV(2). These data represent the first measurement of
the EMC effect for (3)He at large x and a significant
improvement for (4)He. The data do not support previous
A-dependent or density-dependent fits to the EMC effect and
suggest that the nuclear dependence of the quark
distributions may depend on the local nuclear
environment.},
Doi = {10.1103/physrevlett.103.202301},
Key = {fds246076}
}
@article{fds246064,
Author = {Gao, H},
Title = {New results from BLAST on the nucleon electromagnetic form
factors},
Journal = {AIP Conference Proceedings},
Volume = {870},
Pages = {25-32},
Publisher = {AIP},
Year = {2006},
Month = {December},
ISSN = {0094-243X},
url = {http://dx.doi.org/10.1063/1.2402594},
Abstract = {Recently, a new experiment was carried out in the South Hall
Ring at the MIT-Bates Accelerator Laboratory. This
experiment utilized a polarized electron beam, a pure
hydrogen (deuterium) internal polarized gas target, and the
symmetric Bates Large Acceptance Spectrometer Toroid (BLAST)
detector. The proton electric to magnetic form factor ratio,
GEpG Mp at Q2= 0.15 - 0.65 (GeV/c)2 has been determined from
the experiment by measuring the spin-dependent ep elastic
scattering asymmetry in both sectors simultaneously. This is
the first experiment to measure GEpGMp using a polarized
proton target, which is complementary to recoil polarimetry
experiments. The neutron magnetic form factor GMn has been
extracted from the measurement of the spin-dependent
asymmetry from the inclusive d(e,e) process in a similar Q2
with a vector polarized deuterium target, and the neutron
electric form factor GEn has been extracted by measuring the
spin-dependent asymmetry from the coincidence d(e,e′n)
process simultaneously. Preliminary results on the nucleon
form factors from the BLAST experiment are presented. ©
2006 American Institute of Physics.},
Doi = {10.1063/1.2402594},
Key = {fds246064}
}
@article{fds246074,
Author = {Gao, H},
Title = {New results from the bates large acceptance spectrometer
toroid (blast)},
Journal = {International Journal of Modern Physics E},
Volume = {18},
Number = {2},
Pages = {209-219},
Publisher = {WORLD SCIENTIFIC PUBL CO PTE LTD},
Year = {2009},
Month = {February},
ISSN = {0218-3013},
url = {http://dx.doi.org/10.1142/S0218301309012227},
Abstract = {An experiment using the novel technique of scattering a
longitudinally polarized electron beam from polarized
internal hydrogen/deuterium gas targets was carried out in
the South Hall Ring at the MIT-Bates Accelerator Center. The
scattered particles were detected by the Bates Large
Acceptance Spectrometer Toroid (BLAST) detector. The proton
electric to magnetic form factor ratio, $\frac{G-E^p}{G-M^p}$
at Q2 = 0.1 - 0.65 (GeV/c) 2 has been determined from the
experiment by measuring the spin-dependent ep elastic
scattering asymmetry in the two symmetric sectors of the
BLAST simultaneously for the first time. The neutron
electric form factor $G-E^n$ in the same Q2 range has been
extracted by measuring the spin-dependent asymmetry from the
$\vec d(\vec e,e'n)$ process with a vector polarized
deuterium target. These results on the nucleon form factors
from the BLAST experiment are presented. © 2009 World
Scientific Publishing Company.},
Doi = {10.1142/S0218301309012227},
Key = {fds246074}
}
@article{fds345679,
Author = {Gao, H and Liu, T and Zhao, Z},
Title = {New results on spin and 3D structure measurements},
Journal = {Proceedings of Science},
Volume = {316},
Year = {2018},
Month = {January},
url = {http://dx.doi.org/10.22323/1.316.0234},
Abstract = {The nucleon spin structure has puzzled the physics community
for about 30 years since the original discovery made by the
EMC collaboration in late 1980s that the quark spin only
contributes a small fraction to the nucleon spin. With major
efforts from both theoretical and experimental sides, the
quark spin contribution is relatively well known and the
gluon spin contribution is becoming known in recent years.
To fully understand the nucleon spin structure, the study
has gone beyond one dimensional to three dimensional (3D) to
probe the confined motion and access the orbital angular
momentum of the partons inside the nucleon. In this paper,
we briefly review the experimental status and the progress
during the last year on the study of nucleon spin and 3D
structures.},
Doi = {10.22323/1.316.0234},
Key = {fds345679}
}
@article{fds246174,
Author = {Lorenzon, W and Gentile, TR and Gao, H and McKeown,
RD},
Title = {NMR calibration of optical measurement of nuclear
polarization in He3},
Journal = {Physical Review A},
Volume = {47},
Number = {1},
Pages = {468-479},
Publisher = {American Physical Society (APS)},
Year = {1993},
Month = {January},
ISSN = {1050-2947},
url = {http://dx.doi.org/10.1103/PhysRevA.47.468},
Abstract = {We have performed precise NMR measurements in order to
calibrate a standard optical technique for measuring the
polarization of He3 nuclei. This optical technique requires
knowledge of the pressure-dependent relationship between the
nuclear polarization and the degree of circular polarization
of the 668-nm light emitted from a He3 discharge. We
determined the nuclear polarization by comparing the
adiabatic fast-passage NMR signal from samples of polarized
He3 at pressures between 0.1 and 5 torr to an identical
sample of water. For water, the polarization is known from
statistical mechanics. The He3 is polarized using the
metastability exchange technique for optical pumping of He3.
The accuracy of the calibration is 2%, which is required for
applications in nuclear physics. © 1993 The American
Physical Society.},
Doi = {10.1103/PhysRevA.47.468},
Key = {fds246174}
}
@article{fds348134,
Author = {Huang, Y and Yi, H and Xiao, ZG and Zhang, Z and Cheng, WJ and Lü, LM and Yan, WH and Wang, RS and Li, HJ and Zhang, Y and Duan, LM and Hu, RJ and Lu,
CG and Yang, HR and Ma, P and Gao, HY},
Title = {Non-uniformity effects of the inter-foil distance on GEM
detector performance},
Journal = {Chinese Physics C},
Volume = {40},
Number = {4},
Year = {2016},
Month = {April},
url = {http://dx.doi.org/10.1088/1674-1137/40/4/046001},
Abstract = {The non-uniformity effect of the inter-foil distance has
been studied using a gaseous electron multiplication (GEM)
detector with sensitive area of 50mm × 50mm. A gradient of
the inter-foil distance is introduced by using spacers with
different heights at the two ends of the foil gap. While the
cluster size and the intrinsic spatial resolution show
insignificant dependence on the inter-foil distance, the
gain exhibits an approximately linear dependence on the
inter-foil distance. From the slope, a quantitative
relationship between the change of the inter-foil distance
and the change of the gain is derived, which can be used as
a method to evaluate the non-uniformity of the foil gap in
the application of large-area GEM detectors.},
Doi = {10.1088/1674-1137/40/4/046001},
Key = {fds348134}
}
@article{fds37609,
Author = {H. Gao and J. Alcorn and et al.},
Title = {Nucl. Instru. Method A},
Volume = {522},
Pages = {294-346},
Year = {2004},
Key = {fds37609}
}
@article{fds246132,
Author = {H. Gao and al, KAE},
Title = {Nuclear effects on R=o(L)/o(T) in deep inelastic
scattering},
Journal = {Phys. Lett. B},
Volume = {475},
Number = {3-4},
Pages = {386-394},
Publisher = {Elsevier BV},
Year = {2000},
ISSN = {0370-2693},
url = {http://dx.doi.org/10.1016/S0370-2693(99)01493-8},
Abstract = {Cross section ratios for deep-inelastic scattering from 14N
and 3He with respect to 2H have been measured by the HERMES
experiment at DESY using a 27.5 GeV positron beam. The data
cover a range in the Bjorken scaling variable x between
0.013 and 0.65, while the negative squared four-momentum
transfer Q2 varies from 0.5 to 15 GeV2. The data are
compared to measurements performed by NMC, E665, and SLAC on
4He and 12C, and are found to be different for x<0.06 and
Q2<1.5 GeV2. The observed difference is attributed to an
A-dependence of the ratio R = σL/σT of longitudinal to
transverse deep-inelastic scattering cross sections at low x
and low Q2. © 2000 Elsevier Science B.V.},
Doi = {10.1016/S0370-2693(99)01493-8},
Key = {fds246132}
}
@article{fds372890,
Author = {Gao, H},
Title = {Nuclear Physics at Brookhaven National Laboratory},
Journal = {Nuclear Physics News},
Volume = {33},
Number = {2},
Pages = {5-10},
Year = {2023},
Month = {January},
url = {http://dx.doi.org/10.1080/10619127.2023.2198908},
Doi = {10.1080/10619127.2023.2198908},
Key = {fds372890}
}
@article{fds246184,
Author = {Fedchak, JA and Bailey, K and Cummings, WJ and Gao, H and Holt, RJ and Jones, CE and Kowalczyk, RS and O'Neill, T and Poelker,
M},
Title = {Nuclear tensor polarization in a laser-driven polarized
deuterium internal target},
Journal = {Nuclear Instruments and Methods in Physics Research, Section
A: Accelerators, Spectrometers, Detectors and Associated
Equipment},
Volume = {417},
Number = {2-3},
Pages = {182-196},
Publisher = {Elsevier BV},
Year = {1998},
Month = {November},
ISSN = {0168-9002},
url = {http://dx.doi.org/10.1016/S0168-9002(98)00738-4},
Abstract = {We present the results of the first direct measurement of
nuclear polarization in an optically pumped spin-exchange
polarized deuterium target. Measurements of the nuclear
tensor polarization pzz are made in a storage cell as a
function of flow of deuterium nuclei. For these
measurements, the optical pumping was performed on atoms in
magnetic fields of 600 and 3600 G. These measurements verify
that the spin-exchange method is capable of producing
polarized deuterium nuclei without the use of rf
transitions. The electronic polarization, Pe, is also
measured. The Pe and pzz measurements at 600 G indicate that
the system is in spin-temperature equilibrium, whereas the
3600 G measurements show signatures of non-equilibrium
effects. Pe is also measured with the system operated as a
source of polarized atoms, with no storage cell. These
measurements are compared with previous measurements using a
similar source. © 1998 Elsevier Science B.V. All rights
reserved.},
Doi = {10.1016/S0168-9002(98)00738-4},
Key = {fds246184}
}
@article{fds246110,
Author = {al, HGWNE},
Title = {Nuclear transparency and effective kaon-nucleon cross
section from the $A(e,e' K^+$) reaction},
Journal = {Phys. Rev. C},
Volume = {84},
Number = {1},
Pages = {015210},
Publisher = {American Physical Society (APS)},
Year = {2011},
ISSN = {0556-2813},
url = {http://dx.doi.org/10.1103/PhysRevC.84.015210},
Abstract = {We have determined the transparency of the nuclear medium to
kaons from A(e,e′K+) measurements on C12, Cu63, and Au197
targets. The measurements were performed at the Jefferson
Laboratory and span a range in four-momentum-transfer
squared Q2=1.1-3.0GeV2. The nuclear transparency was defined
as the ratio of measured kaon electroproduction cross
sections with respect to deuterium (σA/σD). We further
extracted the atomic number (A) dependence of the
transparency as parametrized by T=(A/2)α-1 and, within a
simple model assumption, the in-medium effective
kaon-nucleon cross sections. The effective cross sections
extracted from the electroproduction data were found to be
smaller than the free cross sections determined from
kaon-nucleon scattering experiments, and the parameter α
was found to be significantly larger than those obtained
from kaon-nucleus scattering. We have included similar
comparisons between pion- and proton-nucleon effective cross
sections as determined from electron-scattering experiments
and pion-nucleus and proton-nucleus scattering data. © 2011
American Physical Society.},
Doi = {10.1103/PhysRevC.84.015210},
Key = {fds246110}
}
@article{fds246151,
Author = {H. Gao and al, KGE},
Title = {Nuclear transparency from quasielastic A(e,e'p) reactions up
to Q^2 of 8.1 (GeV/c)^2},
Journal = {Phys Rev. C},
Volume = {66},
Number = {4},
Pages = {044613},
Year = {2002},
Abstract = {The quasielastic (e,e'p) reaction was studied on targets of
deuterium, carbon, and iron up to a value of momentum
transfer Q2 of 8.1 (GeV/c)2. A nuclear transparency was
determined by comparing the data to calculations in the
plane-wave impulse approximation. The dependence of the
nuclear transparency on Q2 and the mass number A was
investigated in a search for the onset of the color
transparency phenomenon. We find no evidence for the onset
of color transparency within our range of Q2. A fit to the
world's nuclear transparency data reflects the energy
dependence of the free-proton-nucleon cross
section.},
Key = {fds246151}
}
@article{fds332008,
Author = {Garrow, K and McKee, D and Ahmidouch, A and Armstrong, CS and Arrington,
J and Asaturyan, R and Avery, S and Baker, OK and Beck, DH and Blok, HP and Bochna, CW and Boeglin, W and Bosted, P and Bouwhuis, M and Breuer, H and Brown, DS and Bruell, A and Carlini, RD and Chant, NS and Cochran, A and Cole, L and Danagoulian, S and Day, DB and Dunne, J and Dutta, D and Ent,
R and Fenker, HC and Fox, B and Gan, L and Gaskell, D and Gasparian, A and Gao, H and Geesaman, DF and Gilman, R and Guèye, PLJ and Harvey, M and Holt, RJ and Jiang, X and Keppel, CE and Kinney, E and Liang, Y and Lorenzon, W and Lung, A and Mack, DJ and Markowitz, P and Martin, JW and McIlhany, K and Meekins, D and Miller, MA and Milner, RG and Mitchell,
JH and Mkrtchyan, H and Mueller, BA and Nathan, A and Niculescu, G and Niculescu, I and O'Neill, TG and Papavassiliou, V and Pate, S and Piercey, RB and Potterveld, D and Ransome, RD and Reinhold, J and Rollinde, E and Roos, P and Sarty, AJ and Sawafta, R and Schulte, EC and Segbefia, E and Smith, C and Stepanyan, S and Strauch, S and Tadevosyan,
V and Tang, L and Tieulent, R and Uzzle, A and Vulcan, WF and Wood, SA and Xiong, F and Yuan, L and Zeier, M and Zihlmann, B and Ziskin,
V},
Title = {Nuclear transparency from quasielastic A(e,e′p) reactions
up to Q2 = 8.1 (GeV/c)2},
Journal = {Physical Review C - Nuclear Physics},
Volume = {66},
Number = {4},
Pages = {446131-4461310},
Publisher = {American Physical Society (APS)},
Year = {2002},
url = {http://dx.doi.org/10.1103/PhysRevC.66.044613},
Abstract = {The quasielastic (e,e'p) reaction was studied on targets of
deuterium, carbon, and iron up to a value of momentum
transfer Q2 of 8.1 (GeV/c)2. A nuclear transparency was
determined by comparing the data to calculations in the
plane-wave impulse approximation. The dependence of the
nuclear transparency on Q2 and the mass number A was
investigated in a search for the onset of the color
transparency phenomenon. We find no evidence for the onset
of color transparency within our range of Q2. A fit to the
world's nuclear transparency data reflects the energy
dependence of the free-proton-nucleon cross
section.},
Doi = {10.1103/PhysRevC.66.044613},
Key = {fds332008}
}
@article{fds246142,
Author = {H. Gao and al, DDE},
Title = {Nuclear Transparency with the γn → π¯p
Process in 4He},
Journal = {Physical Review C (Rapid Communications)},
Volume = {68},
Pages = {021001(R)},
Year = {2003},
Month = {August},
Key = {fds246142}
}
@article{fds315784,
Author = {al, DDE},
Title = {Nuclear transparency with the gamma n--> pi ^{-} p process
in ^{4}He},
Journal = {Phys. Rev. C},
Volume = {68},
Number = {2},
Pages = {021001R},
Publisher = {American Physical Society (APS)},
Year = {2003},
ISSN = {0556-2813},
url = {http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000185193000001&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=47d3190e77e5a3a53558812f597b0b92},
Abstract = {We have measured the nuclear transparency of the fundamental
process (Formula presented) in (Formula presented) These
measurements were performed at Jefferson Lab in the photon
energy range of 1.6–4.5 GeV and at (Formula presented) and
(Formula presented) These measurements are the first of
their kind in the study of nuclear transparency in
photoreactions. They also provide a benchmark test of
Glauber calculations based on traditional models of nuclear
physics. The transparency results suggest deviations from
the traditional nuclear physics picture. The momentum
transfer dependence of the measured nuclear transparency is
consistent with Glauber calculations that include the
quantum chromodynamics phenomenon of color transparency. ©
2003 The American Physical Society.},
Doi = {10.1103/PhysRevC.68.021001},
Key = {fds315784}
}
@article{fds246046,
Author = {Dutta, D and Xiong, F and Zhu, LY and Arrington, J and Averett, T and Beise, E and Calarco, J and Chang, T and Chen, JP and Chudakov, E and Coman, M and Clasie, B and Crawford, C and Dieterich, S and Dohrmann, F and Fissum, K and Frullani, S and Gao, H and Gilman, R and Glashausser, C and Gomez, J and Hafidi, K and Hansen, JO and Higinbotham, DW and Holt, RJ and Jager, CWD and Jiang, X and Kinney, E and Kramer, K and Kumbartzki, G and LeRose, J and Liyanage, N and Mack, D and Markowitz, P and McCormick, K and Meziani, ZE and Michaels, R and Mitchell, J and Nanda, S and Potterveld,
D and Ransome, R and Reimer, PE and Reitz, B and Saha, A and Schulte, EC and Seely, J and Širca, S and Strauch, S and Sulkosky, V and Vlahovic, B and Weinstein, LB and Wijesooriya, K and Williamson, CF and Wojtsekhowski, B and Xiang, H and Xu, W and Zeng, J and Zheng,
X},
Title = {Nuclear transparency with the γn → π-p
process in 4He},
Journal = {Physical Review C - Nuclear Physics},
Volume = {68},
Number = {2},
Pages = {210011-210015},
Year = {2003},
Abstract = {We have measured the nuclear transparency of the fundamental
process γn → π-p in 4He. These measurements were
performed at Jefferson Lab in the photon energy range of
1.6-4.5 GeV and at θcmπ = 70° and 90°. These
measurements are the first of their kind in the study of
nuclear transparency in photoreactions. They also provide a
benchmark test of Glauber calculations based on traditional
models of nuclear physics. The transparency results suggest
deviations from the traditional nuclear physics picture. The
momentum transfer dependence of the measured nuclear
transparency is consistent with Glauber calculations that
include the quantum chromodynamics phenomenon of color
transparency.},
Key = {fds246046}
}
@article{fds346399,
Author = {Zhao, Z and Liu, T and Gao, H},
Title = {Nucleon 3D imaging program with soLID at Jefferson
Lab},
Journal = {Proceedings of Science},
Volume = {346},
Year = {2018},
Month = {January},
Abstract = {The 3D imaging of nucleon is at the frontier of
understanding the visible Universe and QCD. There are many
efforts to access the nucleon’s 3D partonic structure both
in the transverse coordinate space (Generalized Parton
Distributions) and in the transverse momentum space
(Transverse Momentum Dependent distributions). The proposed
Solenoidal Large Intensity Device (SoLID) in Hall A at
Jefferson Lab will fully utilize the great physics potential
of the 12-GeV energy upgrade by combining high luminosities
and large acceptance to allow high precision measurements of
the observables of interest in a wide kinematic region. We
present an overview of the experiment plan and highlight
some of the expected physics results.},
Key = {fds346399}
}
@article{fds246060,
Author = {Gao, H},
Title = {Nucleon electromagnetic form factors},
Journal = {International Journal of Modern Physics A},
Volume = {20},
Number = {8-9},
Pages = {1595-1600},
Publisher = {World Scientific Pub Co Pte Lt},
Year = {2005},
Month = {April},
url = {http://dx.doi.org/10.1142/S0217751X05023049},
Abstract = {The nucleon electromagnetic form factors have been studied
in the past extensively from unpolarized electron scattering
experiments. With the development in polarized beam, recoil
polarimetry, and polarized target technologies, polarization
experiments have provided more precise data on these
quantities. In this talk, I review recent experimental
progress on this subject. © World Scientific Publishing
Company.},
Doi = {10.1142/S0217751X05023049},
Key = {fds246060}
}
@article{fds246166,
Author = {Gao, H},
Title = {Nucleon electromagnetic form factors},
Journal = {International Journal of Modern Physics E},
Volume = {12},
Number = {1},
Pages = {1-40},
Publisher = {World Scientific Pub Co Pte Lt},
Year = {2003},
Month = {February},
url = {http://dx.doi.org/10.1142/S021830130300117X},
Abstract = {Nucleon electromagnetic form factors are fundamental
quantities related to the charge and magnetization
distributions inside the nucleon. Understanding the nucleon
electromagnetic structure in terms of the underlying quark
and gluon degrees of freedom of quantum chromodynamics is a
challenging and urgent task. The nucleon electromagnetic
form factors have been studied in the past extensively in
unpolarized electron scattering experiments. With the
development in polarized beam, recoil polarimetry, and
polarized target technologies, polarization experiments have
provided more precise data on these quantities. At the same
time, significant theoretical progress in areas ranging from
effective field theories to lattice QCD calculations, has
been made in describing these data. In this article, we
review recent experimental and theoretical progress on this
subject. We also provide the future outlook on this
topic.},
Doi = {10.1142/S021830130300117X},
Key = {fds246166}
}
@article{fds304551,
Author = {Dutta, D and Gao, H and Lee, TSH},
Title = {Nucleon resonances with double polarization observables of
pion photoproduction},
Journal = {Physical Review C - Nuclear Physics},
Volume = {65},
Number = {4},
Pages = {446191-446196},
Publisher = {American Physical Society (APS)},
Year = {2002},
Month = {January},
url = {http://dx.doi.org/10.1103/PhysRevC.65.044619},
Abstract = {The role of the nucleon resonances in the double
polarization observables of pion photoproduction is
investigated by using the resonance parameters predicted by
Capstick and Roberts. As an example, we show that the
not-well-determined two-star resonance N3/2-(1960) can be
examined by performing experiments on beam-recoil
polarization at large angles.},
Doi = {10.1103/PhysRevC.65.044619},
Key = {fds304551}
}
@article{fds246077,
Author = {Gao, H},
Title = {Nucleon transversity study using a polarized 3He
target in Hall A at JLab},
Journal = {Nuclear Physics A},
Volume = {844},
Number = {1-4},
Pages = {202c-205c},
Publisher = {Elsevier BV},
Year = {2010},
Month = {January},
ISSN = {0375-9474},
url = {http://dx.doi.org/10.1016/j.nuclphysa.2010.05.036},
Abstract = {A first measurement of Single target Spin Asymmetry (SSA)
from semi-inclusive electro-production of charged pions from
a transversely polarized 3He target in Deep-Inelastic-Scattering
kinematics was completed in Hall A at Jefferson Lab in early
2009. Such SSA will allow for an extraction of the much
desired information on the Collins and Sivers asymmetry from
the "neutron" in order to probe the quark transversity
distributions. Future 11 GeV measurements at Jefferson Lab
in Hall A using a solenoid magnetic detector system is being
planned. © 2010 Elsevier B.V.},
Doi = {10.1016/j.nuclphysa.2010.05.036},
Key = {fds246077}
}
@article{fds246172,
Author = {H. Gao and al, KAE and Collaboration, HERMES},
Title = {Observation of a coherence length effect in exclusive
rho_0},
Journal = {Phys. Rev. Lett.},
Volume = {82},
Number = {15},
Pages = {3025},
Year = {1999},
Abstract = {Exclusive incoherent electroproduction of the Ï0(770)
meson from 1H, 2H, 3He, and 14N targets has been studied by
the HERMES experiment at squared four-momentum transfer Q2
> 0.4 GeV2 and positron energy loss v from 9 to 20 GeV.
The ratio of the 14N to 1H cross sections per nucleon, known
as the nuclear transparency, was found to decrease with
increasing coherence length of quark-antiquark fluctuations
of the virtual photon. The data provide clear evidence of
the interaction of the quark-antiquark fluctuations with the
nuclear medium. © 1999 The American Physical
Society.},
Key = {fds246172}
}
@article{fds304542,
Author = {Ackerstaff, K and Airapetian, A and Akopov, N and Akushevich, I and Amarian, M and Aschenauer, EC and Avakian, H and Avakian, R and Avetissian, A and Bains, B and Barrow, S and Baumgarten, C and Beckmann,
M and Belostotski, S and Belz, JE and Benisch, T and Bernreuther, S and Bianchi, N and Blanchard, S and Blouw, J and Böttcher, H and Borissov,
A and Brack, J and Brauksiepe, S and Braun, B and Bray, B and Brons, S and Brückner, W and Brüll, A and Bruins, EEW and Bulten, HJ and Cadman,
RV and Capitani, GP and Carter, P and Chumney, P and Cisbani, E and Court,
GR and Dalpiaz, PF and Delheij, PPJ and De Sanctis and E and De Schepper,
D and Devitsin, E and de Witt Huberts and PKA and Di Nezza and P and Düren,
M and Dvoredsky, A and Elbakian, G and Ely, J and Emerson, J and Fantoni,
A and Fechtchenko, A and Ferstl, M and Fick, D and Fiedler, K and Filippone, BW and Fischer, H and Fortune, HT and Fox, B and Frabetti, S and Franz, J and Frullani, S and Funk, MA and Gagunashvili, ND and Galumian,
P and Gao, H and Gärber, Y and Garibaldi, F and Gavrilov, G and Geiger, P and Gharibyan, V and Giordjian, V and Golendukhin, A and Graw, G and Grebeniouk, O and Green, PW and Greeniaus, LG and Grosshauser, C and Guidal, MG and Gute, A and Gyurjyan, V and Haas, JP and Haeberli, W and Hansen, JO and Hasch, D and Häusser, O and Heinsius, FH and Henderson,
RS and Henkes, T and Henoch, M and Hertenberger, R and Holler, Y and Holt,
RJ and Hoprich, W and Ihssen, H and Iodice, M and Izotov, A and Jackson,
HE and Jgoun, A and Jones, C and Kaiser, R},
Title = {Observation of a coherence length effect in exclusive
ρ0 Electroproduction},
Journal = {Physical Review Letters},
Volume = {82},
Number = {15},
Pages = {3025-3029},
Publisher = {American Physical Society (APS)},
Year = {1999},
Month = {January},
url = {http://dx.doi.org/10.1103/PhysRevLett.82.3025},
Abstract = {Exclusive incoherent electroproduction of the ρ0(770) meson
from 1H, 2H, 3He, and 14N targets has been studied by the
HERMES experiment at squared four-momentum transfer Q2 >
0.4GeV2 and positron energy loss v from 9 to 20 GeV. The
ratio of the 14N to 1H cross sections per nucleon, known as
the nuclear transparency, was found to decrease with
increasing coherence length of quark-antiquark fluctuations
of the virtual photon. The data provide clear evidence of
the interaction of the quark-antiquark fluctuations with the
nuclear medium. © 1999 The American Physical
Society.},
Doi = {10.1103/PhysRevLett.82.3025},
Key = {fds304542}
}
@article{fds246199,
Author = {H. Gao and al, TMIE},
Title = {Parity-violating Electron Deuteron Scattering and the
Proton's},
Journal = {Physical Review Letters},
Volume = {92},
Number = {10},
Pages = {102003},
Year = {2004},
url = {http://dx.doi.org/10.1103/PhysRevLett.92.102003},
Abstract = {The parity-violating asymmetry was investigated in
quasielastic electron scattering from deuteron with
determination of neutral weak axial vector form factor. The
backward angles at Q2 = 0.038 (GeV/c)2 from deuteron
scattering provided value of neutral weak axial vector form
factor of nucleon with potentially large electroweak
corrections. The scattered electron events were generated
uniformly in energy, angle and position along target length
in simulation. The correction factor for radiative effects
was evaluated by comparing asymmetry with radiative effects
included in simulation.},
Doi = {10.1103/PhysRevLett.92.102003},
Key = {fds246199}
}
@article{fds304553,
Author = {Ito, TM and Averett, T and Barkhuff, D and Batigne, G and Beck, DH and Beise, EJ and Blake, A and Breuer, H and Carr, R and Clasie, B and Covrig,
S and Danagoulian, A and Dodson, G and Dow, K and Dutta, D and Farkhondeh,
M and Filippone, BW and Franklin, W and Furget, C and Gao, H and Gao, J and Gustafsson, K and Hannelius, L and Hasty, R and Hawthorne-Allen, AM and Herda, MC and Jones, CE and King, P and Korsch, W and Kowalski, S and Kox,
S and Kramer, K and Lee, P and Liu, J and Martin, JW and McKeown, RD and Mueller, B and Pitt, ML and Plaster, B and Quéméner, G and Réal, JS and Ritter, J and Roche, J and Savu, V and Schiavilla, R and Seely, J and Spayde, D and Suleiman, R and Taylor, S and Tieulent, R and Tipton, B and Tsentalovich, E and Wells, SP and Yang, B and Yuan, J and Yun, J and Zwart,
T},
Title = {Parity-Violating Electron Deuteron Scattering and the
Proton's Neutral Weak Axial Vector Form Factor},
Journal = {Physical Review Letters},
Volume = {92},
Number = {10},
Pages = {102003-102001},
Publisher = {American Physical Society (APS)},
Year = {2004},
Month = {March},
url = {http://dx.doi.org/10.1103/PhysRevLett.92.102003},
Abstract = {The parity-violating asymmetry was investigated in
quasielastic electron scattering from deuteron with
determination of neutral weak axial vector form factor. The
backward angles at Q2 = 0.038 (GeV/c)2 from deuteron
scattering provided value of neutral weak axial vector form
factor of nucleon with potentially large electroweak
corrections. The scattered electron events were generated
uniformly in energy, angle and position along target length
in simulation. The correction factor for radiative effects
was evaluated by comparing asymmetry with radiative effects
included in simulation.},
Doi = {10.1103/PhysRevLett.92.102003},
Key = {fds304553}
}
@article{fds246152,
Author = {Marrone, S and Wojtsekhowski, BB and Acha, A and Cisbani, E and Coman,
M and Cusanno, F and De Jager and CW and De Leo and R and Gao, H and Garibaldi,
F and Higinbotham, DW and Iodice, M and Lerose, JJ and Macchia, D and Markowitz, P and Nappi, E and Palmisano, F and Urciuoli, GM and Van Der
Werf and I and Xiang, H and Zhu, LY},
Title = {Performance of the two aerogel Cherenkov detectors of the
JLab hall a hadron spectrometer},
Journal = {Nuovo Cimento della Societa Italiana di Fisica
B},
Volume = {124},
Number = {1},
Pages = {99-114},
Year = {2009},
Month = {January},
ISSN = {1594-9982},
url = {http://dx.doi.org/10.1393/ncb/i2009-10743-5},
Abstract = {We report on the design and commissioning of two silica
aerogel Cherenkov detectors with different refractive
indices. In particular, very high performance in terms of
the number of detected photoelectrons was achieved through
an appropriate choice of PMT type and reflector, along with
some design considerations. After four years of operation,
the number of detected photoelectrons was found to be
noticeably reduced in both detectors as a result of
contamination, yellowing, of the aerogel material. Along
with the details of the set-up, we illustrate the
characteristics of the detectors during different time
periods and the probable causes of the contamination. In
particular we show that the replacement of the contaminated
aerogel and parts of the reflecting material has almost
restored the initial performance of the detectors. ©
Società Italians di Fisica.},
Doi = {10.1393/ncb/i2009-10743-5},
Key = {fds246152}
}
@article{fds246147,
Author = {Gao, H and Lee, TSH and Marinov, V},
Title = {Phi-N bound state'},
Journal = {Phys. Rev. C (Rapid Communications)},
Volume = {C},
Number = {63},
Pages = {022201 (R)},
Year = {2001},
Key = {fds246147}
}
@article{fds365122,
Author = {Arrington, J and Battaglieri, M and Boehnlein, A and Bogacz, SA and Brooks, WK and Chudakov, E and Cloët, I and Ent, R and Gao, H and Grames,
J and Harwood, L and Ji, X and Keppel, C and Krafft, G and McKeown, RD and Napolitano, J and Qiu, JW and Rossi, P and Schram, M and Stepanyan, S and Stevens, J and Szczepaniak, AP and Toro, N and Zheng,
X},
Title = {Physics with CEBAF at 12 GeV and future opportunities},
Journal = {Progress in Particle and Nuclear Physics},
Volume = {127},
Year = {2022},
Month = {November},
url = {http://dx.doi.org/10.1016/j.ppnp.2022.103985},
Abstract = {We summarize the ongoing scientific program of the 12 GeV
Continuous Electron Beam Accelerator Facility (CEBAF) and
give an outlook into future opportunities. The program
addresses important topics in nuclear, hadronic, and
electroweak physics, including nuclear femtography, meson
and baryon spectroscopy, quarks and gluons in nuclei,
precision tests of the standard model and dark sector
searches. Potential upgrades of CEBAF and their impact on
scientific reach are discussed, such as higher luminosity,
the addition of polarized and unpolarized positron beams,
and doubling the beam energy.},
Doi = {10.1016/j.ppnp.2022.103985},
Key = {fds365122}
}
@article{fds246057,
Author = {Gao, H and Zhu, L},
Title = {Pion photoproduction on the nucleon},
Journal = {AIP Conference Proceedings},
Volume = {747},
Pages = {179-184},
Publisher = {AIP},
Year = {2005},
Month = {December},
ISSN = {0094-243X},
url = {http://dx.doi.org/10.1063/1.1871659},
Abstract = {The γn → π-p and γp → π+n reactions are essential
probes of the transition from meson-nucleon degrees of
freedom to quark-gluon degrees of freedom in exclusive
processes. The cross sections of these processes are also
advantageous, for the investigation of oscillatory behavior
around the quark counting prediction, since they decrease
relatively slower with energy compared with other
photon-induced processes. In this talk, we discuss recent
results on the γp → π+n and γn → π-p processes from
Jefferson Lab experiment E94-104. We also discuss a new
experiment in which singles γp → π+n measurement from
hydrogen, and coincidence γn → π-p measurements at the
quasifree kinematics from deuterium for center-of-mass
energies between 2.3 GeV to 3.4 GeV in fine steps at a
center-of-mass angle of 90° are planned. The proposed
measurement will allow a detailed investigation of the
oscillatory scaling behavior in photopion production
processes. © 2005 American Institute of
Physics.},
Doi = {10.1063/1.1871659},
Key = {fds246057}
}
@article{fds315783,
Author = {Xu, W and Anderson, B and Auberbach, L and Averett, T and Bertozzi, W and Black, T and Calarco, J and Cardman, L and Cates, GD and Chai, ZW and Chen,
JP and Choi, S and Chudakov, E and Churchwell, S and Corrado, GS and Crawford, C and Dale, D and Deur, A and Djawotho, P and Donnelly, TW and Dutta, D and Finn, JM and Gao, H and Gilman, R and Glamazdin, AV and Glashausser, C and Glöckle, W and Golak, J and Gomez, J and Gorbenko,
VG and Hansen, JO and Hersman, FW and Higinbotham, DW and Holmes, R and Howell, CR and Hughes, E and Humensky, B and Incerti, S and De Jager,
CW and Jensen, JS and Jiang, X and Jones, CE and Jones, M and Kahl, R and Kamada, H and Kievsky, A and Kominis, I and Korsch, W and Kramer, K and Kumbartzki, G and Kuss, M and Lakuriqi, E and Liang, M and Liyanage, N and LeRose, J and Malov, S and Margaziotis, DJ and Martin, JW and McCormick,
K and McKeown, RD and McIlhany, K and Meziani, ZE and Michaels, R and Miller, GW and Mitchell, J and Nanda, S and Pace, E and Pavlin, T and Petratos, GG and Pomatsalyuk, RI and Pripstein, D and Prout, D and Ransome, RD and Roblin, Y and Rvachev, M and Saha, A and Salmè, G and Schnee, M and Shin, T and Slifer, K and Souder, PA and Strauch, S and Suleiman, R and Sutter, M and Tipton, B and Todor, L and Viviani, M and Vlahovic, B and Watson, J and Williamson, CF and Witała, H and Wojtsekhowski, B and Xiong, F and Yeh, J and Zołnierczuk,
P},
Title = {Plane-wave impulse approximation extraction of the neutron
magnetic form factor from quasielastic 3He→(e→,e′)
at Q2 = 0.3 to 0.6 (GeV/c)2},
Journal = {Physical Review C - Nuclear Physics},
Volume = {67},
Number = {1},
Pages = {122011-122015},
Year = {2003},
Month = {January},
ISSN = {0556-2813},
Abstract = {A high precision measurement of the transverse
spin-dependent asymmetry AT′ in 3He→(e→,e′)
quasielastic scattering was performed in Hall A at Jefferson
Lab at values of the squared four-momentum transfer, Q2,
between 0.1 and 0.6 (GeV/c)2. AT′ is sensitive to the
neutron magnetic form factor, GMn. Values of GMn at Q2 = 0.1
and 0.2 (GeV/c)2, extracted using Faddeev calculations, were
reported previously. Here, we report the extraction of GMn
for the remaining Q2 values in the range from 0.3 to 0.6
(GeV/c)2 using a plane-wave impulse approximation
calculation. The results are in good agreement with recent
precision data from experiments using a deuterium
target.},
Key = {fds315783}
}
@article{fds246044,
Author = {Xu, W and Anderson, B and Auberbach, L and Averett, T and Bertozzi, W and Black, T and Calarco, J and Cardman, L and Cates, GD and Chai, ZW and Chen,
JP and Choi, S and Chudakov, E and Churchwell, S and Corrado, GS and Crawford, C and Dale, D and Deur, A and Djawotho, P and Donnelly, TW and Dutta, D and Finn, JM and Gao, H and Gilman, R and Glamazdin, AV and Glashausser, C and Glöckle, W and Golak, J and Gomez, J and Gorbenko,
VG and Hansen, JO and Hersman, FW and Higinbotham, DW and Holmes, R and Howell, CR and Hughes, E and Humensky, B and Incerti, S and Jager, CWD and Jensen, JS and Jiang, X and Jones, CE and Jones, M and Kahl, R and Kamada,
H and Kievsky, A and Kominis, I and Korsch, W and Kramer, K and Kumbartzki,
G and Kuss, M and Lakuriqi, E and Liang, M and Liyanage, N and LeRose, J and Malov, S and Margaziotis, DJ and Martin, JW and McCormick, K and McKeown, RD and McIlhany, K and Meziani, ZE and Michaels, R and Miller,
GW and Mitchell, J and Nanda, S and Pace, E and Pavlin, T and Petratos, GG and Pomatsalyuk, RI and Pripstein, D and Prout, D and Ransome, RD and Roblin, Y and Rvachev, M and Saha, A and Salmè, G and Schnee, M and Shin,
T and Slifer, K and Souder, PA and Strauch, S and Suleiman, R and Sutter,
M and Tipton, B and Todor, L and Viviani, M and Vlahovic, B and Watson, J and Williamson, CF and Witała, H and Wojtsekhowski, B and Xiong, F and Yeh,
J and Zołnierczuk, P},
Title = {Plane-wave impulse approximation extraction of the neutron
magnetic form factor from quasielastic 3He→(e→,e′)
at Q2 = 0.3 to 0.6 (GeV/c)2},
Journal = {Physical Review C - Nuclear Physics},
Volume = {67},
Number = {1},
Pages = {122011-122015},
Year = {2003},
url = {http://dx.doi.org/10.1103/PhysRevC.67.012201},
Abstract = {A high precision measurement of the transverse
spin-dependent asymmetry AT′ in 3He→(e→,e′)
quasielastic scattering was performed in Hall A at Jefferson
Lab at values of the squared four-momentum transfer, Q2,
between 0.1 and 0.6 (GeV/c)2. AT′ is sensitive to the
neutron magnetic form factor, GMn. Values of GMn at Q2 = 0.1
and 0.2 (GeV/c)2, extracted using Faddeev calculations, were
reported previously. Here, we report the extraction of GMn
for the remaining Q2 values in the range from 0.3 to 0.6
(GeV/c)2 using a plane-wave impulse approximation
calculation. The results are in good agreement with recent
precision data from experiments using a deuterium
target.},
Doi = {10.1103/PhysRevC.67.012201},
Key = {fds246044}
}
@article{fds304547,
Author = {al, KWE},
Title = {Polarization measurement in the high-energy deuteron
photodisintegration.},
Journal = {Phys. Rev. Lett.},
Volume = {86},
Number = {14},
Pages = {2975},
Year = {2001},
url = {http://dx.doi.org/10.1103/physrevlett.86.2975},
Abstract = {We present measurements of the recoil proton polarization
for the d(gamma-->,p-->)n reaction at straight theta(c.m.) =
90 degrees for photon energies up to 2.4 GeV. These are the
first data in this reaction for polarization transfer with
circularly polarized photons. The induced polarization p(y)
vanishes above 1 GeV, contrary to meson-baryon model
expectations, in which resonances lead to large
polarizations. However, the polarization transfer Cx does
not vanish above 1 GeV, inconsistent with hadron helicity
conservation. Thus, we show that the scaling behavior
observed in the d(gamma,p)n cross sections is not a result
of perturbative QCD. These data should provide important
tests of new nonperturbative calculations in the
intermediate energy regime.},
Doi = {10.1103/physrevlett.86.2975},
Key = {fds304547}
}
@article{fds246194,
Author = {H. Gao and al, KWE},
Title = {Polarization measurements in high-energy
deuteron},
Journal = {Phys. Rev. Lett.},
Volume = {86},
Number = {14},
Pages = {2975},
Year = {2001},
url = {http://dx.doi.org/10.1103/PhysRevLett.86.2975},
Abstract = {The hadron helicity conservation (HHC) is tested in a
photoreaction in a kinematic region. HHC arises when vector
interactions, photon or gluon coupling with the quarks,
conserve chiralty which leads to the conservation of the sum
of the components of the hadronic spins along their
respective momentum directions. The recoil proton
polarization for photon energies is investigated. The
polarization transfer with circularly polarized photons is
analyzed.},
Doi = {10.1103/PhysRevLett.86.2975},
Key = {fds246194}
}
@article{fds246149,
Author = {H. Gao and al, KWE},
Title = {Polarization measurements in neutral pion
photoproduction,},
Journal = {Phys Rev C},
Volume = {66},
Number = {3},
Pages = {034614},
Publisher = {American Physical Society (APS)},
Year = {2002},
ISSN = {0556-2813},
url = {http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000178383900035&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=47d3190e77e5a3a53558812f597b0b92},
Abstract = {We present measurements of the recoil proton polarization
for the 1H(γ→, p→)π0 reaction for θπc.m. =60°-135°
and for photon energies up to 4.1 GeV. These are the first
data in this reaction for polarization transfer with
circularly polarized photons. Various theoretical models are
compared with the results. No evidence for hadron helicity
conservation is observed. Models that employ factorization
are not favored. It appears from the strong angular
dependence of the induced polarization at photon energies of
2.5 and 3.1 GeV that a relatively high spin resonance or
background amplitude might exist in this energy
region.},
Doi = {10.1103/PhysRevC.66.034614},
Key = {fds246149}
}
@article{fds246127,
Author = {al, DJHE},
Title = {Polarization Transfer in Proton Compton Scattering at High
Momentum Transfer},
Journal = {Phys. Rev. Lett.},
Volume = {94},
Number = {24},
Pages = {242001},
Publisher = {American Physical Society (APS)},
Year = {2005},
ISSN = {0031-9007},
url = {http://dx.doi.org/10.1103/PhysRevLett.94.242001},
Abstract = {Compton scattering from the proton was investigated at
s=6.9GeV2 and t=-4.0GeV2 via polarization transfer from
circularly polarized incident photons. The longitudinal and
transverse components of the recoil proton polarization were
measured. The results are in disagreement with a prediction
of perturbative QCD based on a two-gluon exchange mechanism,
but agree well with a prediction based on a reaction
mechanism in which the photon interacts with a single quark
carrying the spin of the proton. © 2005 The American
Physical Society.},
Doi = {10.1103/PhysRevLett.94.242001},
Key = {fds246127}
}
@article{fds246105,
Author = {Zhang, C and Kohl, M and Akdogan, T and Alarcon, R and Bertozzi, W and Booth, E and Botto, T and Calarco, JR and Clasie, B and Crawford, C and DeGrush, A and Dow, K and Farkhondeh, M and Fatemi, R and Filoti, O and Franklin, W and Gao, H and Geis, E and Gilad, S and Hasell, D and Karpius,
P and Kolster, H and Lee, T and Maschinot, A and Matthews, J and McIlhany,
K and Meitanis, N and Milner, R and Rapaport, J and Redwine, R and Seely,
J and Shinozaki, A and Sindile, A and Širca, S and Six, E and Smith, T and Tonguc, B and Tschalär, C and Tsentalovich, E and Turchinetz, W and Xiao, Y and Xu, W and Zhou, Z-L and Ziskin, V and Zwart, T and BLAST
collaboration},
Title = {Precise measurement of deuteron tensor analyzing powers with
BLAST.},
Journal = {Physical review letters},
Volume = {107},
Number = {25},
Pages = {252501},
Year = {2011},
Month = {December},
ISSN = {0031-9007},
url = {http://dx.doi.org/10.1103/physrevlett.107.252501},
Abstract = {We report a precision measurement of the deuteron tensor
analyzing powers T(20) and T(21) at the MIT-Bates Linear
Accelerator Center. Data were collected simultaneously over
a momentum transfer range Q=2.15-4.50 fm(-1) with the Bates
Large Acceptance Spectrometer Toroid using a highly
polarized deuterium internal gas target. The data are in
excellent agreement with calculations in a framework of
effective field theory. The deuteron charge monopole and
quadrupole form factors G(C) and G(Q) were separated with
improved precision, and the location of the first node of
G(C) was confirmed at Q=4.19±0.05 fm(-1). The new data
provide a strong constraint on theoretical models in a
momentum transfer range covering the minimum of T(20) and
the first node of G(C).},
Doi = {10.1103/physrevlett.107.252501},
Key = {fds246105}
}
@article{fds246021,
Author = {Gao, H},
Title = {Precise measurement of the neutron magnetic form factor from
quasielastic 3→He(→e,
e′)},
Journal = {Nuclear Instruments and Methods in Physics Research, Section
A: Accelerators, Spectrometers, Detectors and Associated
Equipment},
Volume = {402},
Number = {2-3},
Pages = {277-283},
Publisher = {Elsevier BV},
Year = {1998},
Month = {January},
ISSN = {0168-9002},
url = {http://dx.doi.org/10.1016/S0168-9002(97)00849-8},
Abstract = {Polarized 3He targets have proven to be a useful tool for
studying the electric and magnetic form factors of the
neutron, and the spin structure of the neutron. The neutron
magnetic form factor at low Q2 was previously determined at
MIT-Bates from the quasielastic 3→He(→e, e′) process.
A new experiment is planned at TJNAF to systematically
measure the inclusive 3He quasielastic transverse asymmetry,
AT′, at Q2 = 0.1-0.5 (GeV/c)2 with high statistical and
systematic accuracy. A 2% statistical uncertainty is aimed
at all the proposed values of Q2, and 3% systematic
uncertainty for AT′ can be achieved for this experiment.
The precise data will constrain theoretical calculations of
3He quasielastic asymmetry. Furthermore, the neutron
magnetic form factor at Q2 = 0.1-0.5 (Gev/c)2 will be
extracted from the measured asymmetries with an overall
uncertainty of 2%. Precise measurements of GnM at low Q2
will resolve the discrepancy among the existing data in the
same Q2 region.},
Doi = {10.1016/S0168-9002(97)00849-8},
Key = {fds246021}
}
@article{fds246198,
Author = {H. Gao and al, XZE},
Title = {Precision measurement of the neutron spin asymmetry A1n and
spin-flavor decomposition in the valence quark
region},
Journal = {Phys. Rev. Lett.},
Volume = {92},
Number = {1},
Pages = {012004},
Year = {2004},
ISSN = {0031-9007},
url = {http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000187968500010&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=47d3190e77e5a3a53558812f597b0b92},
Abstract = {The neutron spin asymmetry A1n with high precision at three
kinematic in the deep inelastic region at x=0.33, 0.47 and Q
2=2.7, 3.5 and 4.8(GeV/c)2, respectively was measured. It
was shown that A1n crosses zero around x=0.47 and becomes
significantly positive at x=0.60. The polarized quark
distributions, combined with the world proton data were also
extracted. The hadron helicity conservation (HHC) mechanism,
based on leading-order perturbative quantum chromodynamics
(PQCD), where the quark orbital angular momentum (OAM) was
assumed to be zero was discussed.},
Doi = {10.1103/physrevlett.92.012004},
Key = {fds246198}
}
@article{fds349849,
Author = {Larin, I and Zhang, Y and Gasparian, A and Gan, L and Miskimen, R and Khandaker, M and Dale, D and Danagoulian, S and Pasyuk, E and Gao, H and Ahmidouch, A and Ambrozewicz, P and Baturin, V and Burkert, V and Clinton, E and Deur, A and Dolgolenko, A and Dutta, D and Fedotov, G and Feng, J and Gevorkyan, S and Glamazdin, A and Guo, L and Isupov, E and Ito,
MM and Klein, F and Kowalski, S and Kubarovsky, A and Kubarovsky, V and Lawrence, D and Lu, H and Ma, L and Matveev, V and Morrison, B and Micherdzinska, A and Nakagawa, I and Park, K and Pedroni, R and Phelps,
W and Protopopescu, D and Rimal, D and Romanov, D and Salgado, C and Shahinyan, A and Sober, D and Stepanyan, S and Tarasov, VV and Taylor,
S and Vasiliev, A and Wood, M and Ye, L and Zihlmann, B and PrimEx-II
Collaboration},
Title = {Precision measurement of the neutral pion
lifetime.},
Journal = {Science (New York, N.Y.)},
Volume = {368},
Number = {6490},
Pages = {506-509},
Year = {2020},
Month = {May},
url = {http://dx.doi.org/10.1126/science.aay6641},
Abstract = {The explicit breaking of the axial symmetry by quantum
fluctuations gives rise to the so-called axial anomaly. This
phenomenon is solely responsible for the decay of the
neutral pion π<sup>0</sup> into two photons (γγ), leading
to its unusually short lifetime. We precisely measured the
decay width Γ of the [Formula: see text] process. The
differential cross sections for π<sup>0</sup>
photoproduction at forward angles were measured on two
targets, carbon-12 and silicon-28, yielding [Formula: see
text], where stat. denotes the statistical uncertainty and
syst. the systematic uncertainty. We combined the results of
this and an earlier experiment to generate a weighted
average of [Formula: see text] Our final result has a total
uncertainty of 1.50% and confirms the prediction based on
the chiral anomaly in quantum chromodynamics.},
Doi = {10.1126/science.aay6641},
Key = {fds349849}
}
@article{fds246136,
Author = {H. Gao and al, XZE},
Title = {Precision Measurement of the Neutron Spin Asymmetries and
Spin-dependent Structure Functions in the Valance Quark
Region.},
Journal = {Phys. Rev. C},
Volume = {70},
Number = {6},
Pages = {065207},
Publisher = {American Physical Society (APS)},
Year = {2004},
url = {http://dx.doi.org/10.1103/PhysRevC.70.065207},
Abstract = {We report on measurements of the neutron spin asymmetries A
1,2n and polarized structure functions g 1,2n at three
kinematics in the deep inelastic region, with x=0.33, 0.47,
and 0.60 and Q2=2.1, 3.5, and 4.8 (GeV/c) 2, respectively.
These measurements were performed using a 5.7 GeV
longitudinally polarized electron beam and a polarized 3He
target. The results for A1n and g1n at x=0.33 are consistent
with previous world data and, at the two higher-x points,
have improved the precision of the world data by about an
order of magnitude. The new A1n data show a zero crossing
around x=0.47 and the value at x=0.60 is significantly
positive. These results agree with a next-to-leading-order
QCD analysis of previous world data. The trend of data at
high x agrees with constituent quark model predictions but
disagrees with that from leading-order perturbative QCD
(PQCD) assuming hadron helicity conservation. Results for
A2n and g2n have a precision comparable to the best world
data in this kinematic region. Combined with previous world
data, the moment d 2n was evaluated and the new result has
improved the precision of this quantity by about a factor of
2. When combined with the world proton data, polarized quark
distribution functions were extracted from the new g1n/F1n
values based on the quark-parton model. While results for
Δu/u agree well with predictions from various models,
results for Δd/d disagree with the leading-order PQCD
prediction when hadron helicity conservation is
imposed.},
Doi = {10.1103/PhysRevC.70.065207},
Key = {fds246136}
}
@article{fds246008,
Author = {Posik, M and Flay, D and Parno, DS and Allada, K and Armstrong, W and Averett, T and Benmokhtar, F and Bertozzi, W and Camsonne, A and Canan,
M and Cates, GD and Chen, C and Chen, J-P and Choi, S and Chudakov, E and Cusanno, F and Dalton, MM and Deconinck, W and de Jager, CW and Deng, X and Deur, A and Dutta, C and El Fassi and L and Franklin, GB and Friend, M and Gao, H and Garibaldi, F and Gilad, S and Gilman, R and Glamazdin, O and Golge, S and Gomez, J and Guo, L and Hansen, O and Higinbotham, DW and Holmstrom, T and Huang, J and Hyde, C and Ibrahim, HF and Jiang, X and Jin,
G and Katich, J and Kelleher, A and Kolarkar, A and Korsch, W and Kumbartzki, G and LeRose, JJ and Lindgren, R and Liyanage, N and Long,
E and Lukhanin, A and Mamyan, V and McNulty, D and Meziani, Z-E and Michaels, R and Mihovilovič, M and Moffit, B and Muangma, N and Nanda,
S and Narayan, A and Nelyubin, V and Norum, B and Nuruzzaman, and Oh, Y and Peng, JC and Qian, X and Qiang, Y and Rakhman, A and Riordan, S and Saha,
A and Sawatzky, B and Shabestari, MH and Shahinyan, A and Širca, S and Solvignon, P and Subedi, R and Sulkosky, V and Tobias, WA and Troth, W and Wang, D and Wang, Y and Wojtsekhowski, B and Yan, X and Yao, H and Ye, Y and Ye, Z and Yuan, L and Zhan, X and Zhang, Y and Zhang, Y-W and Zhao, B and Zheng, X and Jefferson Lab Hall A Collaboration},
Title = {Precision measurement of the neutron twist-3 matrix element
d(2)(n): probing color forces.},
Journal = {Physical review letters},
Volume = {113},
Number = {2},
Pages = {022002},
Year = {2014},
Month = {July},
ISSN = {0031-9007},
url = {http://dx.doi.org/10.1103/physrevlett.113.022002},
Abstract = {Double-spin asymmetries and absolute cross sections were
measured at large Bjorken x (0.25≤x≤0.90), in both
the deep-inelastic and resonance regions, by scattering
longitudinally polarized electrons at beam energies of 4.7
and 5.9 GeV from a transversely and longitudinally polarized
(3)He target. In this dedicated experiment, the spin
structure function g(2)((3)He) was determined with precision
at large x, and the neutron twist-3 matrix element d(2)(n)
was measured at ⟨Q(2)⟩ of 3.21 and 4.32 GeV(2)/c(2),
with an absolute precision of about 10(-5). Our results are
found to be in agreement with lattice QCD calculations and
resolve the disagreement found with previous data at
⟨Q(2)⟩=5 GeV(2)/c(2). Combining d(2)(n) and a newly
extracted twist-4 matrix element f(2)(n), the average
neutron color electric and magnetic forces were extracted
and found to be of opposite sign and about 30 MeV/fm in
magnitude.},
Doi = {10.1103/physrevlett.113.022002},
Key = {fds246008}
}
@article{fds246196,
Author = {H. Gao and al, FXE},
Title = {Precision measurement of the spin-dependent asymmetry in the
threshold},
Journal = {Phys. Rev. Lett.},
Volume = {87},
Number = {24},
Pages = {242501},
Year = {2001},
ISSN = {0031-9007},
Abstract = {Experiments were carried out for the first precision
measurements of spin-dependent asymmetry in the threshold
region of 3He→(e→, e′). The analysis was
performed for the probing of 3He ground-state structure and
extracting the neutron electromagnetic form factors from
electron scattering. Results showed that the data and
nonrelativistic Faddeev calculations which included
final-state interactions and meson-exchange current effects
were in agreement with each other.},
Key = {fds246196}
}
@article{fds304550,
Author = {Xiong, F and Dutta, D and Xu, W and Anderson, B and Auberbach, L and Averett, T and Bertozzi, W and Black, T and Calarco, J and Cardman, L and Cates, GD and Chai, ZW and Chen, JP and Choi, S and Chudakov, E and Churchwell, S and Corrado, GS and Crawford, C and Dale, D and Deur, A and Djawotho, P and Filippone, BW and Finn, JM and Gao, H and Gilman, R and Glamazdin, AV and Glashausser, C and Glöckle, W and Golak, J and Gomez,
J and Gorbenko, VG and Hansen, JO and Hersman, FW and Higinbotham, DW and Holmes, R and Howell, CR and Hughes, E and Humensky, B and Incerti, S and de Jager, CW and Jensen, JS and Jiang, X and Jones, CE and Jones, M and Kahl, R and Kamada, H and Kievsky, A and Kominis, I and Korsch, W and Kramer, K and Kumbartzki, G and Kuss, M and Lakuriqi, E and Liang, M and Liyanage, N and LeRose, J and Malov, S and Margaziotis, DJ and Martin,
JW and McCormick, K and McKeown, RD and McIlhany, K and Meziani, ZE and Michaels, R and Miller, GW and Pace, E and Pavlin, T and Petratos, GG and Pomatsalyuk, RI and Pripstein, D and Prout, D and Ransome, RD and Roblin, Y and Rvachev, M and Saha, A and Salmè, G and Schnee, M and Shin,
T and Slifer, K and Souder, PA and Strauch, S and Suleiman, R and Sutter,
M and Tipton, B and Todor, L and Viviani, M and Vlahovic, B and Watson, J and Williamson, CF and Witała, H and Wojtsekhowski, B and Yeh, J and Zołnierczuk, P},
Title = {Precision measurement of the spin-dependent asymmetry in the
threshold region of 3He(e, e').},
Journal = {Physical review letters},
Volume = {87},
Number = {24},
Pages = {242501},
Year = {2001},
Month = {December},
ISSN = {0031-9007},
url = {http://dx.doi.org/10.1103/physrevlett.87.242501},
Abstract = {We present the first precision measurement of the
spin-dependent asymmetry in the threshold region of
3He(e,e') at Q2 values of 0.1 and 0.2 (GeV/c)2. The
agreement between the data and nonrelativistic Faddeev
calculations which include both final-state interactions and
meson-exchange current effects is very good at Q2 = 0.1
(GeV/c)2, while a small discrepancy at Q2 = 0.2 (GeV/c)2 is
observed.},
Doi = {10.1103/physrevlett.87.242501},
Key = {fds304550}
}
@article{fds333215,
Author = {Parno, DS and Flay, D and Posik, M and Allada, K and Armstrong, W and Averett, T and Benmokhtar, F and Bertozzi, W and Camsonne, A and Canan,
M and Cates, GD and Chen, C and Chen, JP and Choi, S and Chudakov, E and Cusanno, F and Dalton, MM and Deconinck, W and de Jager, CW and Deng, X and Deur, A and Dutta, C and El Fassi and L and Franklin, GB and Friend, M and Gao, H and Garibaldi, F and Gilad, S and Gilman, R and Glamazdin, O and Golge, S and Gomez, J and Guo, L and Hansen, O and Higinbotham, DW and Holmstrom, T and Huang, J and Hyde, C and Ibrahim, HF and Jiang, X and Jin,
G and Katich, J and Kelleher, A and Kolarkar, A and Korsch, W and Kumbartzki, G and LeRose, JJ and Lindgren, R and Liyanage, N and Long,
E and Lukhanin, A and Mamyan, V and McNulty, D and Meziani, ZE and Michaels, R and Mihovilovič, M and Moffit, B and Muangma, N and Nanda,
S and Narayan, A and Nelyubin, V and Norum, B and Nuruzzaman, N and Oh, Y and Peng, JC and Qian, X and Qiang, Y and Rakhman, A and Riordan, S and Saha,
A and Sawatzky, B and Shabestari, MH and Shahinyan, A and Širca, S and Solvignon, P and Subedi, R and Sulkosky, V and Tobias, WA and Troth, W and Wang, D and Wang, Y and Wojtsekhowski, B and Yan, X and Yao, H and Ye, Y and Ye, Z and Yuan, L and Zhan, X and Zhang, Y and Zhang, YW and Zhao, B and Zheng, X},
Title = {Precision measurements of A1n in the deep inelastic
regime},
Journal = {Physics Letters, Section B: Nuclear, Elementary Particle and
High-Energy Physics},
Volume = {744},
Pages = {309-314},
Publisher = {Elsevier BV},
Year = {2015},
Month = {May},
url = {http://dx.doi.org/10.1016/j.physletb.2015.03.067},
Abstract = {We have performed precision measurements of the double-spin
virtual-photon asymmetry A1 on the neutron in the deep
inelastic scattering regime, using an open-geometry,
large-acceptance spectrometer and a longitudinally and
transversely polarized 3He target. Our data cover a wide
kinematic range 0.277≤x≤0.548 at an average Q2 value of
3.078 (GeV/c)2, doubling the available high-precision
neutron data in this x range. We have combined our results
with world data on proton targets to make a leading-order
extraction of the ratio of polarized-to-unpolarized parton
distribution functions for up quarks and for down quarks in
the same kinematic range. Our data are consistent with a
previous observation of an A1n zero crossing near x=0.5. We
find no evidence of a transition to a positive slope in
(δd+δd-)/(d+d-) up to x=0.548.},
Doi = {10.1016/j.physletb.2015.03.067},
Key = {fds333215}
}
@article{fds315786,
Author = {Gao, H and Holstein, B and Weller, HR},
Title = {Preface},
Journal = {Chiral Dynamics 2006 - Proceedings of the 5th International
Workshop on Chiral Dynamics, Theory and Experiment, CD
2006},
Volume = {60},
Number = {SUPPL. 1},
Pages = {V},
Year = {2007},
Month = {December},
url = {http://dx.doi.org/10.1227/NEU.0000000000000006},
Doi = {10.1227/NEU.0000000000000006},
Key = {fds315786}
}
@article{fds246117,
Author = {Zheng, W and Gao, H and Ye, Q and Zhang, Y},
Title = {Pressure dependence of wall relaxation in polarized He3
gaseous cells},
Journal = {Physical Review A - Atomic, Molecular, and Optical
Physics},
Volume = {83},
Number = {6},
Pages = {061401(R)},
Publisher = {American Physical Society (APS)},
Year = {2011},
Month = {June},
ISSN = {1050-2947},
url = {http://dx.doi.org/10.1103/PhysRevA.83.061401},
Abstract = {We have observed a linear pressure dependence of
longitudinal relaxation time T1 at 4.2 and 295 K in gaseous
He3 cells made of either bare Pyrex glass or Cs- or
Rb-coated Pyrex due to paramagnetic sites in the cell wall.
The paramagnetic wall relaxation is previously thought to be
independent of He3 pressure. We develop a model to interpret
the observed wall relaxation by taking into account the
diffusion process, and our model gives a good description of
the data. © 2011 American Physical Society.},
Doi = {10.1103/PhysRevA.83.061401},
Key = {fds246117}
}
@article{fds246102,
Author = {Ye, QJ and Hartmann, M and Maeda, Y and Barsov, S and Büscher, M and Chiladze, D and Dymov, S and Dzyuba, A and Gao, H and Gebel, R and Hejny,
V and Kacharava, A and Keshelashvili, I and Kiselev, YT and Khoukaz, A and Koptev, VP and Kulessa, P and Kulikov, A and Lorentz, B and Mersmann, T and Merzliakov, S and Mikirtytchiants, S and Nekipelov, M and Ohm, H and Paryev, EY and Polyanskiy, A and Serdyuk, V and Stein, HJ and Ströher,
H and Trusov, S and Valdau, Y and Wilkin, C and Wüstner,
P},
Title = {Production of K+K- pairs in proton-proton collisions at 2.83
GeV},
Journal = {Physical Review C - Nuclear Physics},
Volume = {85},
Number = {3},
Pages = {035211},
Publisher = {American Physical Society (APS)},
Year = {2012},
Month = {March},
ISSN = {0556-2813},
url = {http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000302171400005&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=47d3190e77e5a3a53558812f597b0b92},
Abstract = {Differential and total cross sections for the pp→ppK+K-
reaction have been measured at a proton beam energy of 2.83
GeV using the COSY-ANKE magnetic spectrometer. Detailed
model descriptions fitted to a variety of one-dimensional
distributions permit the separation of the pp→ppφ cross
section from that of non-φ production. The differential
spectra show that higher partial waves represent the
majority of the pp→ppφ total cross section at an excess
energy of 76 MeV, whose energy dependence would then seem to
require some s-wave φp enhancement near threshold. The
non-φ data can be described in terms of the combined
effects of two-body final state interactions using the same
effective scattering parameters determined from lower energy
data.},
Doi = {10.1103/PhysRevC.85.035211},
Key = {fds246102}
}
@article{fds246017,
Author = {Ye, QJ and Hartmann, M and Chiladze, D and Dymov, S and Dzyuba, A and Gao,
H and Gebel, R and Hejny, V and Kacharava, A and Lorentz, B and McHedlishvili, D and Merzliakov, S and Mielke, M and Mikirtytchiants,
S and Ohm, H and Papenbrock, M and Polyanskiy, A and Serdyuk, V and Stein,
HJ and Ströher, H and Trusov, S and Valdau, Y and Wilkin, C and Wüstner,
P},
Title = {Production of K+K- pairs in
proton-proton collisions below the meson
threshold},
Journal = {Physical Review C - Nuclear Physics},
Volume = {87},
Number = {6},
Publisher = {American Physical Society (APS)},
Year = {2013},
Month = {June},
ISSN = {0556-2813},
url = {http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000320279400002&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=47d3190e77e5a3a53558812f597b0b92},
Abstract = {The pp→ppK+K- reaction was measured below the threshold at
a beam energy of 2.568 GeV using the COSY-ANKE magnetic
spectrometer. By assuming that the four-body phase space is
distorted only by the product of two-body final-state
interactions, fits to a variety of one-dimensional
distributions permit the evaluation of differential and
total cross sections. The shapes of the distributions in the
Kp and Kpp invariant masses are reproduced only if the K-p
interaction is even stronger than that found at higher
energy. The cusp effect in the K+K - distribution at the
K0K̄0 threshold is much more clear and some evidence is
also found for coupling between the K-p and K̄0n channels.
However, the energy dependence of the total cross section
cannot be reproduced by considering only a simple product of
such pairwise final-state interactions. © 2013 American
Physical Society.},
Doi = {10.1103/PhysRevC.87.065203},
Key = {fds246017}
}
@article{fds246016,
Author = {Strakovsky, II and Chen, W and Gao, H and Briscoe, WJ and Dutta, D and Kudryavtsev, AE and Mirazite, M and Paris, M and Rossi, P and Stepanyan,
S and Tarasov, VE and Workman, RL},
Title = {Progress on neutron-target multipoles above 1
GeV},
Journal = {EPJ Web of Conferences},
Volume = {37},
Pages = {08005-08005},
Publisher = {E D P SCIENCES},
Year = {2012},
Month = {December},
ISSN = {2101-6275},
url = {http://dx.doi.org/10.1051/epjconf/20123708005},
Abstract = {We report a new extraction of nucleon resonance couplings
using π- photo-production cross sections on the neutron.
The world database for the process γn → π-p above 1 GeV
has quadrupled with the addition of new differential cross
sections from the CEBAF Large Acceptance Spectrometer (CLAS)
at Jefferson Lab in Hall B. Differential cross sections from
CLAS have been improved with a new final-state interaction
determination using a diagrammatic technique taking into
account the SAID phenomenological NN and πN final-state
interaction amplitudes. Resonance couplings have been
extracted and compared to previous determinations. With the
addition of these new cross sections, significant changes
are seen in the high-energy behavior of the SAID cross
sections and amplitudes.},
Doi = {10.1051/epjconf/20123708005},
Key = {fds246016}
}
@article{fds246081,
Author = {Strakovsky, II and Qiang, Y and Azimov, YI and Briscoe, WJ and Gao, H and Higinbotham, DW and Nelyubin, VV},
Title = {Properties of the resonance Λ(1520) as seen in the forward
electroproduction at JLab hall A},
Journal = {AIP Conference Proceedings},
Volume = {1374},
Pages = {181-184},
Publisher = {AIP},
Year = {2011},
Month = {November},
ISSN = {0094-243X},
url = {http://dx.doi.org/10.1063/1.3647120},
Abstract = {High-resolution spectrometer measurements of the reaction
H(e,e′K+)X at small Q2 are used to extract the mass and
width of the Λ(1520). We investigate dependence of the
resonance parameters on different parametrizations of the
background and the resonance peak itself. Our final values
for the Breit-Wigner parameters are M=1520.4±0.6(stat.)±1.5(syst.)MeV
and Γ=18.6±1. 9(stat.)±1(syst.)MeV. The width appears to
be more sensitive to the assumptions than the mass. We also
estimate, for the first time, the pole position for this
resonance and find that both the pole mass and width seem to
be smaller than their Breit-Wigner values. © 2011 American
Institute of Physics.},
Doi = {10.1063/1.3647120},
Key = {fds246081}
}
@article{fds246119,
Author = {Qiang, Y and Azimov, YI and Strakovsky, II and Briscoe, WJ and Gao, H and Higinbotham, DW and Nelyubin, VV},
Title = {Properties of the ∧(1520) resonance from high-precision
electroproduction data},
Journal = {Physics Letters, Section B: Nuclear, Elementary Particle and
High-Energy Physics},
Volume = {694},
Number = {2},
Pages = {123-128},
Publisher = {Elsevier BV},
Year = {2010},
Month = {November},
ISSN = {0370-2693},
url = {http://dx.doi.org/10.1016/j.physletb.2010.09.052},
Abstract = {High-resolution spectrometer measurements of the reaction
H(e,e'K+)X at small Q2 are used to extract the mass and
width of the "(1520). We investigate the influence of
various assumptions used in the extraction. The width
appears to be more sensitive to the assumptions than the
mass. To reach a width uncertainty about 1 MeV or better,
one needs to know the structure of the non-resonant
background. Based on the new Jefferson Lab Hall A data, our
final values for the Breit-Wigner parameters are
M=1520.4±0.6(stat.)±1.5(syst.) MeV, Γ=18.6±1.9(stat.)±1(syst.)
MeV. We also estimate, for the first time, the pole position
for this resonance and find that both the pole mass and
width seem to be smaller than their Breit-Wigner values. ©
2010 Elsevier B.V.},
Doi = {10.1016/j.physletb.2010.09.052},
Key = {fds246119}
}
@article{fds315788,
Author = {Peng, C and Gao, H},
Title = {Proton Charge Radius (PRad) Experiment at Jefferson
Lab},
Journal = {EPJ Web of Conferences},
Volume = {113},
Pages = {03007-03007},
Publisher = {E D P SCIENCES},
Editor = {Elster, C and Phillips, D and Roberts, C},
Year = {2016},
Month = {March},
url = {http://dx.doi.org/10.1051/epjconf/201611303007},
Abstract = {The puzzle of proton charge radius was recently raised by
the measurement of muonic hydrogen Lamb shift at Paul
Scherrer Institute (PSI), whose results were seven standard
deviations smaller than the CODATA recommended value. To
investigate this discrepancy, the PRad experiment was
proposed and approved at Thomas Jefferson National
Accelerator Facility (JLab). The experiment will extract the
proton charge radius with a sub-percent accuracy by
measuring the cross-sections of unpolarized electronproton
elastic scattering in an unprecedented low Q2 region
(2×10-4 GeV2/c2).},
Doi = {10.1051/epjconf/201611303007},
Key = {fds315788}
}
@article{fds363063,
Author = {Li, X and Ahmed, MW and Banu, A and Bartram, C and Crowe, B and Downie, EJ and Emamian, M and Feldman, G and Gao, H and Godagama, D and Grießhammer,
HW and Howell, CR and Karwowski, HJ and Kendellen, DP and Kovash, MA and Leung, KKH and Markoff, DM and McGovern, JA and Mikhailov, S and Pywell,
RE and Sikora, MH and Silano, JA and Sosa, RS and Spraker, MC and Swift, G and Wallace, P and Weller, HR and Whisnant, CS and Wu, YK and Zhao,
ZW},
Title = {Proton Compton Scattering from Linearly Polarized Gamma
Rays.},
Journal = {Physical review letters},
Volume = {128},
Number = {13},
Pages = {132502},
Year = {2022},
Month = {April},
url = {http://dx.doi.org/10.1103/physrevlett.128.132502},
Abstract = {Differential cross sections for Compton scattering from the
proton have been measured at scattering angles of 55°,
90°, and 125° in the laboratory frame using
quasimonoenergetic linearly (circularly) polarized photon
beams with a weighted mean energy value of 83.4 MeV
(81.3 MeV). These measurements were performed at the High
Intensity Gamma-Ray Source facility at the Triangle
Universities Nuclear Laboratory. The results are compared to
previous measurements and are interpreted in the chiral
effective field theory framework to extract the
electromagnetic dipole polarizabilities of the proton, which
gives α_{E1}^{p}=13.8±1.2_{stat}±0.1_{BSR}±0.3_{theo},β_{M1}^{p}=0.2∓1.2_{stat}±0.1_{BSR}∓0.3_{theo}
in units of 10^{-4} fm^{3}.},
Doi = {10.1103/physrevlett.128.132502},
Key = {fds363063}
}
@article{fds331385,
Author = {Gao, H and Crawford, C},
Title = {Proton electric to magnetic form factor ratio from
spin-dependent electron scattering from polarized internal
hydrogen gas target},
Journal = {CZECHOSLOVAK JOURNAL OF PHYSICS},
Volume = {56},
Pages = {C337-C342},
Publisher = {INST PHYSICS ACAD SCI CZECH REPUBLIC},
Year = {2006},
Month = {January},
Key = {fds331385}
}
@article{fds367342,
Author = {Ruth, D and Zielinski, R and Gu, C and Allada (Cummings), M and Badman,
T and Huang, M and Liu, J and Zhu, P and Allada, K and Zhang, J and Camsonne,
A and Chen, JP and Slifer, K and Aniol, K and Annand, J and Arrington, J and Averett, T and Baghdasaryan, H and Bellini, V and Boeglin, W and Brock,
J and Carlin, C and Chen, C and Cisbani, E and Crabb, D and Daniel, A and Day,
D and Duve, R and Fassi, LE and Friedman, M and Fuchey, E and Gao, H and Gilman, R and Glamazdin, S and Gueye, P and Hafez, M and Han, Y and Hansen,
O and Shabestari, MH and Hen, O and Higinbotham, D and Horn, T and Iqbal,
S and Jensen, E and Kang, H and Keith, CD and Kelleher, A and Keller, D and Khanal, H and Korover, I and Kumbartzki, G and Li, W and Lichtenstadt,
J and Lindgren, R and Long, E and Malace, S and Markowitz, P and Maxwell,
J and Meekins, DM and Meziani, ZE and McLean, C and Michaels, R and Mihovilovič, M and Muangma, N and Camacho, CM and Musson, J and Myers,
K and Oh, Y and Carmignotto, MP and Perdrisat, C and Phillips, S and Piasetzky, E and Pierce, J and Punjabi, V and Qiang, Y and Reimer, PE and Roblin, Y and Ron, G and Rondon, O and Russo, G and Saenboonruang, K and Sawatzky, B and Shahinyan, A and Shneor, R and Širca, S and Sjoegren,
J and Solvignon-Slifer, P and Sparveris, N and Sulkosky, V and Wesselmann, F and Yan, W and Yang, H and Yao, H and Ye, Z and Yurov, M and Zhang, Y and Zhao, YX and Zheng, X},
Title = {Proton spin structure and generalized polarizabilities in
the strong quantum chromodynamics regime},
Journal = {Nature Physics},
Volume = {18},
Number = {12},
Pages = {1441-1446},
Year = {2022},
Month = {December},
url = {http://dx.doi.org/10.1038/s41567-022-01781-y},
Abstract = {The strong interaction is not well understood at low
energies or for interactions with low momentum transfer.
Chiral perturbation theory gives testable predictions for
the nucleonic generalized polarizabilities, which are
fundamental quantities describing the nucleon’s response
to an external field. We report a measurement of the
proton’s generalized spin polarizabilities extracted with
a polarized electron beam and a polarized solid ammonia
target in the region where chiral perturbation theory is
expected to be valid. The investigated structure function g2
characterizes the internal spin structure of the proton.
From its moments, we extract the longitudinal–transverse
spin polarizability δLT and twist-3 matrix element and
polarizability d2¯. Our results provide discriminating
power between existing chiral perturbation theory
calculations and will help provide a better understanding of
this strong quantum chromodynamics regime.},
Doi = {10.1038/s41567-022-01781-y},
Key = {fds367342}
}
@article{fds246143,
Author = {H. Gao and Churchwell, WXEAIS and Dutta, D and Gao, H and Howell,
CR},
Title = {PWIA Extraction of the Neutron Magnetic Form Factor from
Quasi-Elastic 3He(e,e') at Q2=0.3 to 0.6
(GeV/c)2,},
Journal = {Phys. Rev. C},
Volume = {67},
Pages = {012201(R)},
Year = {2003},
Key = {fds246143}
}
@article{fds246063,
Author = {Kramer, K and Armstrong, DS and Averett, TD and Bertozzi, W and Binet,
S and Butuceanu, C and Camsonne, A and Cates, GD and Chen, JP and Choi, S and Chudakov, E and Cusanno, F and Deur, A and Djawotho, P and Dutta, D and Finn, JM and Gao, H and Garibaldi, F and Gayou, O and Gilman, R and Glamazdin, A and Gorbenko, V and Griffioen, KA and Hansen, JO and Higinbotham, DW and Hinton, W and Horn, T and De Jager and CW and Jiang, X and Korsch, W and Lerose, J and Lhuillier, D and Liyanage, N and Margaziotis, DJ and McCormick, K and Meziani, ZE and Michaels, R and Milbrath, B and Moffit, B and Nanda, S and Perdrisat, CF and Pomatsalyuk, R and Punjabi, V and Reitz, B and Roche, J and Roché, R and Roedelbronn, M and Savvinov, N and Secrest, J and Singh, J and Širca,
S and Slifer, K and Solvignon, P and Steiner, DJ and Suleiman, R and Sulkosky, V and Tobias, A and Vacheret, A and Xiao, Y and Zheng, X and Zhou, J and Zhu, L and Zhu, X and Zołnierczuk, PA},
Title = {Q2 dependence of the neutron spin structure function g2n at
low Q2},
Journal = {Physical Review Letters},
Volume = {95},
Number = {14},
Publisher = {American Physical Society (APS)},
Year = {2005},
Month = {September},
ISSN = {0031-9007},
url = {http://dx.doi.org/10.1103/PhysRevLett.95.142002},
Abstract = {We present the first measurement of the Q2 dependence of the
neutron spin structure function g2n at five kinematic points
covering 0.57(GeV/c) 2â‰Q2â‰1.34(GeV/c)2 at
xâ‰σ0.2. Though the naive quark-parton model predicts
g2=0, nonzero values occur in more realistic models of the
nucleon which include quark-gluon correlations, finite quark
masses, or orbital angular momentum. When scattering from a
noninteracting quark, g2n can be predicted using
next-to-leading order fits to world data for g1n. Deviations
from this prediction provide an opportunity to examine QCD
dynamics in nucleon structure. Our results show a positive
deviation from this prediction at lower Q2, indicating that
contributions such as quark-gluon interactions may be
important. Precision data obtained for g1n are consistent
with next-to-leading order fits to world data. © 2005 The
American Physical Society.},
Doi = {10.1103/PhysRevLett.95.142002},
Key = {fds246063}
}
@article{fds246203,
Author = {H. Gao and Amarian, M and al, E},
Title = {Q2 Evolution of the Generalized Gerasimov-Drell-Hearn
Integral for the Neutron using a 3He Target},
Journal = {Phys. Rev. Lett.},
Volume = {89},
Number = {24},
Pages = {242301},
Year = {2002},
ISSN = {0031-9007},
url = {http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000179484700008&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=47d3190e77e5a3a53558812f597b0b92},
Abstract = {The data on the scattering of polarized electrons from a
polarized 3He target at energies from 0.862 to 5.06 GeV,
obtained at a scattering angle of 15.5°, was presented. The
virtual photon cross-section difference σ1/2-σ3/2 was
determined using this data. The Gerasimov-Drell-Hearn
integral for the neutron in the range of four-momemtum
transfer squared Q2 of 0.1-0.9 GeV2 was also
determined.},
Doi = {10.1103/physrevlett.89.242301},
Key = {fds246203}
}
@article{fds246197,
Author = {H. Gao and Amarian, M and Auerbach, L and Averett, T and Berthot, J and Bertin, P and Bertozzi, B and Black, T and Brash, E and Brown, D and Burtin, E and Calarco, J and Cates, G and Chai, Z and Chen, JP and Choi, S and Chudakov,
E and Cisbani, E and Jager, CWD and Deur, A and DiSalvo, R and Dieterich,
S and Djawotho, P and Finn, M and Fissum, K and Fonvieille, H and Frullani,
S and Gao, H and Gao, J and Garibaldi, F and Gasparian, A and Gilad, S and Gilman, R and Glamazdin, A and Glashausser, C and Goldberg, E and Gomez,
J and Gorbenko, V and Hansen, JO and Hersman, B and Holmes, R and Huber,
GM and Hughes, E and Humensky, B and Incerti, S and Iodice, M and Jensen,
S and Jiang, X and Jones, C and Jones, G and Jones, M and Jutier, C and Ketikyan, A and Kominis, I and Korsch, W and Kramer, K and Kumar, K and Kumbartzki, G and Kuss, M and Lakuriqi, E and Laveissiere, G and Lerose,
J and Liang, M and Liyanage, N and Lolos, G and Malov, S and Marroncle, J and McCormick, K and Mckeown, R and Meziani, ZE and Michaels, R and Mitchell, J and Papandreou, Z and Pavlin, T and Petratos, GG and Pripstein, D and Prout, D and Ransome, R and Roblin, Y and Rowntree, D and Rvachev, M and Sabatie, F and Saha, A and Slifer, K and Souder, P and Saito, T and Strauch, S and Suleiman, R and Takahashi, K and Teijiro, S and Todor, L and Tsubota, H and Ueno, H and Urciuoli, G and Meer, RVD and Vernin, P and Voskanian, H and Wojtsekhowski, B and Xiong, F and Xu, W and Yang, JC and Zhang, B and Zolnierczuk, P},
Title = {Q2 Evolution of the Neutron Spin Structure
Moments using a 3He Target},
Journal = {Physical Review Letters},
Volume = {92},
Number = {2},
Pages = {223011-223015},
Year = {2004},
ISSN = {0031-9007},
url = {http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000188187100012&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=47d3190e77e5a3a53558812f597b0b92},
Abstract = {The determination of Q2 evolution of the neutron spin
structure by 3He in a double spin experiment was discussed.
Measurements of spin structure functions g1 and g2 in deep
inelastic lepton scattering (DIS) were used to unravel the
spin structure of the nucleon. The Burkhardt-Cottingham sum
rule for the neutron was verified within errors in the
intermediate range of Q2 due to cancellation between the
resonance and the elastic contributions. Results suggests a
positive contribution of the resonance region up to Q2=1
GeV2.},
Doi = {10.1103/physrevlett.92.022301},
Key = {fds246197}
}
@article{fds246157,
Author = {al, PSE},
Title = {Quark-Hadron Duality in Neutron (3He) Spin
Structure},
Journal = {Physical Review Letters},
Volume = {101},
Number = {18},
Pages = {182502},
Year = {2008},
ISSN = {0031-9007},
url = {http://dx.doi.org/10.1103/physrevlett.101.182502},
Abstract = {We present experimental results of the first high-precision
test of quark-hadron duality in the spin-structure function
g_{1} of the neutron and 3He using a polarized 3He target in
the four-momentum-transfer-squared range from 0.7 to 4.0
(GeV/c);{2}. Global duality is observed for the
spin-structure function g_{1} down to at least Q;{2}=1.8
(GeV/c);{2} in both targets. We have also formed the
photon-nucleon asymmetry A1 in the resonance region for 3He
and found no strong Q2 dependence above 2.2
(GeV/c);{2}.},
Doi = {10.1103/physrevlett.101.182502},
Key = {fds246157}
}
@article{fds315785,
Author = {al, DDE},
Title = {Quasielastic (e,e' p) reaction on 12C, 56Fe, and
197Au},
Journal = {Phys. Rev. C},
Volume = {68},
Number = {6},
Pages = {064603},
Publisher = {American Physical Society (APS)},
Year = {2003},
ISSN = {0556-2813},
url = {http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000188769500026&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=47d3190e77e5a3a53558812f597b0b92},
Abstract = {We report the results from a systematic study of the
quasielastic [Formula Presented] reaction on [Formula
presented], and [Formula presented] performed at Jefferson
Lab. We have measured nuclear transparency and extracted
spectral functions (corrected for radiation) over a [Formula
Presented] range of [Formula Presented] for all three
nuclei. In addition, we have extracted separated
longitudinal and transverse spectral functions at [Formula
Presented] of 0.64 and [Formula Presented] for these three
nuclei (except for [Formula presented] at the higher
[Formula Presented]). The spectral functions are compared to
a number of theoretical calculations. The measured spectral
functions differ in detail but not in overall shape from
most of the theoretical models. In all three targets the
measured spectral functions show considerable excess
transverse strength at [Formula Presented], which is much
reduced at [Formula Presented]. © 2003 The American
Physical Society.},
Doi = {10.1103/PhysRevC.68.064603},
Key = {fds315785}
}
@article{fds246050,
Author = {Dutta, D and Westrum, DV and Abbott, D and Ahmidouch, A and Amatuoni,
TA and Armstrong, C and Arrington, J and Assamagan, KA and Bailey, K and Baker, OK and Barrow, S and Beard, K and Beatty, D and Beedoe, S and Beise,
E and Beiz, E and Bochna, C and Bosted, PE and Breuer, H and Bruins, EEW and Carlini, R and Cha, J and Chant, N and Cothran, C and Cummings, WJ and Danagoulian, S and Day, D and DeSchepper, D and Ducret, JE and Duncan,
F and Dunne, J and Eden, T and Ent, R and Fortune, HT and Frolov, V and Geesaman, DF and Gao, H and Gilman, R and Guèye, P and Hansen, JO and Hinton, W and Holt, RJ and Jackson, C and Jackson, HE and Jones, C and Kaufman, S and Kelly, JJ and Keppel, C and Khandaker, M and Kim, W and Kinney, E and Klein, A and Koltenuk, D and Kramer, L and Lorenzon, W and Lung, A and McFarlane, K and Mack, DJ and Madey, R and Markowitz, P and Martin, J and Mateos, A and Meekins, D and Miller, MA and Milner, R and Mitchell, J and Mohring, R and Mkrtchyan, H and Nathan, AM and Niculescu, G and Niculescu, I and O'Neill, TG and Potterveld, D and Price, JW and Reinhold, J and Salgado, C and Schiffer, JP and Segel, RE and Stoler, P and Suleiman, R and Tadevosyan, V and Tang, L and Terburg, B and Welch, TP and Williamson, C and Wood, S and Yan, C and Yang, JC and Yu, J and Zeidman, B and Zhao, W and Zihlmann, B},
Title = {Quasielastic (e,e′p) reaction on 12C,
56Fe, and 197Au},
Journal = {Physical Review C - Nuclear Physics},
Volume = {68},
Number = {6},
Pages = {646031-6460317},
Year = {2003},
ISSN = {0556-2813},
Abstract = {We report the results from a systematic study of the
quasielastic (e,e′p) reaction on 12C, 56Fe, and 197Au
performed at Jefferson Lab. We have measured nuclear
transparency and extracted spectral functions (corrected for
radiation) over a Q 2 range of 0.64-3.25 (GeV/c) 2 for all
three nuclei. In addition, we have extracted separated
longitudinal and transverse spectral functions at Q 2 of
0.64 and 1.8 (GeV/c) 2 for these three nuclei (except for
197Au at the higher Q 2), The spectral functions are
compared to a number of theoretical calculations. The
measured spectral functions differ in detail but not in
overall shape from most of the theoretical models. In all
three targets the measured spectral functions show
considerable excess transverse strength at Q 2=0.64 (GeV/c)
2, which is much reduced at 1.8 (GeV/c) 2.},
Key = {fds246050}
}
@article{fds246183,
Author = {H. Gao and Abbott, D and Ahmidouch, A and Amatuni, TA and Armstrong, C and Arrington, J and Assamagan, KA and Bailey, K and Baker, OK and Barrow,
S and Beard, K and Beatty, D and Beedoe, S and Beise, E and Belz, E and Bochna, C and Breuer, H and Bruins, EEW and Carlini, R and Cha, J and Chant, N and Cothran, C and Cummings, WJ and Danagoulian, S and Day, D and DeSchepper, D and Ducret, JE and Duncan, F and Dunne, J and Dutta, D and Eden, T and Ent, R and Fortune, HT and Frolov, V and Geesaman, DF and Gao,
H and Gilman, R and Guèye, P and Hansen, JO and Hinton, W and Holt, RJ and Jackson, C and Jackson, HE and Jones, CE and Kaufman, S and Kelly, JJ and Keppel, C and Khandaker, M and Kim, W and Kinney, E and Klein, A and Koltenuk, D and Kramer, L and Lorenzon, W and McFarlane, K and Mack, DJ and Madey, R and Markowitz, P and Martin, J and Mateos, A and Meekins, D and Miller, MA and Milner, R and Mitchell, J and Mohring, R and Mkrtchyan,
H and Nathan, AM and Niculescu, G and Niculescu, I and O’neill, TG and Potterveld, D and Price, JW and Reinhold, J and Salgado, C and Schiffer,
JP and Segel, RE and Stoler, P and Suleiman, R and Tadevosyan, V and Tang,
L and Terburg, B and van Westrum, D and Welch, P and Williamson, C and Wood, S and Yan, C and Yang, JC and Yu, J and Zeidman, B and Zhao, W and Zihlmann, B},
Title = {Quasifree (e, e′p) reactions and proton propagation in
nuclei},
Journal = {Physical Review Letters},
Volume = {80},
Number = {23},
Pages = {5072-5076},
Publisher = {American Physical Society (APS)},
Year = {1998},
Month = {January},
url = {http://dx.doi.org/10.1103/PhysRevLett.80.5072},
Abstract = {The (e, e′p) reaction was studied on targets of C, Fe, and
Au at momentum transfers squared Q2 of 0.6, 1.3, 1.8, and
3.3GeV2 in a region of kinematics dominated by quasifree
electron-proton scattering. Missing energy and missing
momentum distributions are reasonably well described by
plane wave impulse approximation calculations with Q2 and A
dependent corrections that measure the attenuation of the
final state protons. © 1998 American Physical
Society.},
Doi = {10.1103/PhysRevLett.80.5072},
Key = {fds246183}
}
@article{fds246003,
Author = {Akushevich, I and Gao, H and Ilyichev, A and Meziane,
M},
Title = {Radiative corrections beyond the ultra relativistic limit in
unpolarized ep elastic and Møller scatterings for the PRad
Experiment at Jefferson Laboratory},
Journal = {European Physical Journal A},
Volume = {51},
Number = {1},
Publisher = {Springer Nature},
Year = {2015},
Month = {January},
ISSN = {1434-6001},
url = {http://dx.doi.org/10.1140/epja/i2015-15001-8},
Abstract = {The clear 7σ discrepancy between measurements of the proton
charge radius from muonic hydrogen Lamb shifts and those
from hydrogen Lamb shift and electron scattering lead to
both intense theoretical and experimental efforts to
understand and explain this difference. In this regard, a
new experiment (PRad) based on unpolarized ep elastic
scattering cross section measurements normalized to Møller
scattering is underway at Jefferson Laboratory to extract
the proton charge radius based on new proton electric form
factor down to values of momentum transfer squared Q2, as
low as 10−4 GeV/c)2. To reach the precision of the
experiment in such a small Q2 region requires reliable
knowledge of radiative corrections. In this paper, we
present a complete calculation of radiative corrections for
unpolarized elastic ep and Møller scatterings performed
within a covariant formalism resulting in the set of
explicit formulas beyond the ultra relativistic
approximation (me2 ≪ Q2), and numerical results for the
kinematics of the PRad experiment.},
Doi = {10.1140/epja/i2015-15001-8},
Key = {fds246003}
}
@article{fds331383,
Author = {Gao, H},
Title = {Recent results on structure functions},
Journal = {Proceedings of Science},
Volume = {120},
Pages = {8 pages},
Publisher = {SCUOLA INT SUPERIORE STUDI AVANZATI-SISSA},
Year = {2010},
Month = {January},
Abstract = {Significant progress has been made in recent years in both
unpolarized structure functions of the nucleon as well as
polarized structure functions. More recently, both
experimental and theoretical studies of the structure of the
nucleon have advanced beyond the one-dimensional collinear
approximation, and three-dimensional descriptions of the
nucleon structure both in momentum space, and longitudinal
momentum-transverse space are becoming active areas of
research. In this talk, I will review recent results on
structure functions of the nucleon.},
Key = {fds331383}
}
@article{fds246158,
Author = {Ye, Q and Dutta, D and Gao, H and al, E},
Title = {Relaxation of spin polarized 3He in mixtures of 3He and 4He
below the 4He Lambda point},
Journal = {Physical Review A},
Volume = {77},
Number = {5},
Pages = {053408},
Publisher = {American Physical Society (APS)},
Year = {2008},
ISSN = {1050-2947},
url = {http://dx.doi.org/10.1103/PhysRevA.77.053408},
Abstract = {We report a first study of the depolarization behavior of
spin polarized H3 e in a mixture of H3 e- H4 e at a
temperature below the H4 e λ point in a deuterated
tetraphenyl butadiene-doped deuterated polystyrene
(dTPB-dPS) coated acrylic cell. In our experiment the
measured H3 e relaxation time is due to the convolution of
the H3 e longitudinal relaxation time, T1, and the diffusion
time constant of H3 e in superfluid H4 e since
depolarization takes place on the walls. We have obtained a
H3 e relaxation time of ∼3000s at a temperature around 1.9
K. We have shown that it is possible to achieve values of
wall depolarization probability on the order of (1-2) ×
10-7 for polarized H3 e in the superfluid H4 e from a
dTPB-dPS coated acrylic surface. © 2008 The American
Physical Society.},
Doi = {10.1103/PhysRevA.77.053408},
Key = {fds246158}
}
@article{fds246155,
Author = {Ye, Q and Gao, H and Zheng, W and Dutta, D and Dubose, F and Golub, R and Huffman, P and Swank, C and Korobkina, E},
Title = {Relaxation of spin-polarized H3 e in mixtures of H3 e and H4
e at about 330 mK},
Journal = {Physical Review A - Atomic, Molecular, and Optical
Physics},
Volume = {80},
Number = {2},
Pages = {023403},
Publisher = {American Physical Society (APS)},
Year = {2009},
Month = {August},
ISSN = {1050-2947},
url = {http://dx.doi.org/10.1103/PhysRevA.80.023403},
Abstract = {We report the measurements of depolarization probabilities
of polarized H3 e in a rectangular acrylic cell with a
deuterated tetraphenyl butadiene-doped deuterated
polystyrene coating filled with superfluid H4 e at ∼330mK
with a magnetic holding field of ∼7.3G. We achieve a wall
depolarization probability of ∼1.0× 10-7. Such a surface
will find application in a new experiment searching for the
neutron electric dipole moment and other applications. ©
2009 The American Physical Society.},
Doi = {10.1103/PhysRevA.80.023403},
Key = {fds246155}
}
@article{fds246161,
Author = {Weller, HR and Ahmed, M and Gao, H and Tornow, W and others},
Title = {Research Opportunities at the Upgraded HIGS
Facility},
Journal = {Progress in Particle and Nuclear Physics},
Volume = {62},
Number = {DOI: 10.1016/j.ppnp.2008.07.001},
Pages = {257-303},
Publisher = {Elsevier BV},
Year = {2008},
ISSN = {0146-6410},
url = {http://dx.doi.org/10.1016/j.ppnp.2008.07.001},
Abstract = {The High Intensity γ-ray Source (HIγS) is a joint project
between the Triangle Universities Nuclear Laboratory (TUNL)
and the Duke Free Electron Laser Laboratory (DFELL). This
facility utilizes intra-cavity back-scattering of the FEL
light in order to produce intense γ-ray beams. An upgrade
which allows for the production of γ-rays up to energies of
about 100 MeV having total intensities in excess of 108/s is
essentially complete. The primary component of the upgrade
is a 1.2 GeV booster-injector which makes it possible to
replace lost electrons at full energy. In addition, an
upgrade of the present linear undulator to a helical system
has made it possible to produce nearly 100% linear and
circularly polarized beams. The full system was commissioned
in the early part of 2007. A nuclear physics research
program using beams at energies below 50 MeV commenced in
the fall of 2007. The proposed experimental program includes
low-energy studies of nuclear reactions of importance in
nuclear astrophysics as well as studies of nuclear structure
using the technique of nuclear resonance fluorescence (NRF).
Few-body nuclear physics problems will also be addressed by
studying photodisintegration of d, 3He and 4He. Future
double-polarization experiments include a study of the
Gerasimov-Drell-Hearn Sum Rule for the deuteron and 3He, and
an extensive Compton scattering program designed to probe
the internal structure of the nucleon. A major focus of
these studies will be the measurement of the electric and
magnetic polarizabilities as well as the
spin-polarizabilities of the proton and the neutron. This
review will describe the principles of operation of the
upgraded facility, followed by a description of the
performance which has been achieved to date, and a
projection of the performance anticipated in the near
future. Following this, we will review several of the
research areas of nuclear physics which are accessible using
this facility, and describe both the results to date and
proposed experiments being developed for the future. © 2008
Elsevier B.V. All rights reserved.},
Doi = {10.1016/j.ppnp.2008.07.001},
Key = {fds246161}
}
@article{fds339895,
Author = {Yan, X and Higinbotham, DW and Dutta, D and Gao, H and Gasparian, A and Khandaker, MA and Liyanage, N and Pasyuk, E and Peng, C and Xiong,
W},
Title = {Robust extraction of the proton charge radius from
electron-proton scattering data},
Journal = {Physical Review C},
Volume = {98},
Number = {2},
Pages = {11 pages},
Publisher = {American Physical Society (APS)},
Year = {2018},
Month = {August},
url = {http://dx.doi.org/10.1103/PhysRevC.98.025204},
Abstract = {Background: Extracting the proton charge radius from
electron scattering data requires determining the slope of
the charge form factor at Q2 of zero. As experimental data
cannot reach that limit, numerous methods for making the
extraction have been proposed. Purpose: In this study, we
seek to find functional forms that will allow a robust
extraction of the proton radius from a wide variety of
functional forms. The primary motivation of this study is to
have confidence in the extraction of upcoming low-Q2
experimental data. Method: We create a general framework for
studying various form-factor functions along with various
fitting functions. The input form factors are used to
generate pseudodata with fluctuations mimicking the binning
and random uncertainty of a set of real data. All
combinations of input functions and fit functions can then
be tested repeatedly against regenerated pseudodata. Since
the input radius is known, this allows us to find fitting
functions that are robust for proton radius extractions in
an objective fashion. Results: For the range and uncertainty
of the PRad data, we find that a two-parameter rational
function, a two-parameter continued fraction, and the
second-order polynomial expansion of z can extract the input
radius regardless of the input charge form factor function
that is used. Conclusions: We have created a framework to
determine which functional forms allow a robust extraction
of the radius from pseudodata generated from a wide variety
of trial functions. By taking into account both bias and
variance, the optimal functions for extracting the proton
radius can be determined.},
Doi = {10.1103/PhysRevC.98.025204},
Key = {fds339895}
}
@article{fds368412,
Author = {Baym, G and Aprahamian, A and Aidala, C and Braun-Munzinger, P and Gao,
H and Hafidi, K and Haxton, W and Jowett, J and McLerran, L and Merminga,
L and Meziani, Z-E and Milner, R and Schaefer, T and Sichtermann, E and Turner, M and Jacak, BV and Loeb, A and DiMauro, L and DiSalvo, FJ and Fisch, NJ and Fisher, D and Freedman, W and Heckman, T and Hill, WTIII and Hurd, AJ and Jones, B and Lankford, A and Page, LAJ and Ritz,
SM},
Title = {Role of an EIC Within the Context of Nuclear Physics in the
United States and Internationally},
Pages = {45-52},
Booktitle = {ASSESSMENT OF U.S.-BASED ELECTRON-ION COLLIDER
SCIENCE},
Year = {2018},
ISBN = {978-0-309-47856-4},
Key = {fds368412}
}
@article{fds246112,
Author = {Crawford, C and Akdogan, T and Alarcon, R and Bertozzi, W and Booth, E and Botto, T and Calarco, JR and Clasie, B and de Grush, A and Donnelly, TW and Dow, K and Farkhondeh, M and Fatemi, R and Filoti, O and Franklin, W and Gao, H and Geis, E and Gilad, S and Hasell, D and Karpius, P and Kohl, M and Kolster, H and Lee, T and Lomon, E and Maschinot, A and Matthews, J and McIlhany, K and Meitanis, N and Milner, R and Rapaport, J and Redwine,
R and Seely, J and Shinozaki, A and Sindile, A and Širca, S and Six, E and Smith, T and Tonguc, B and Tschalaer, C and Tsentalovich, E and Turchinetz, W and Xiao, Y and Xu, W and Zhang, C and Zhou, Z and Ziskin, V and Zwart, T},
Title = {Role of mesons in the electromagnetic form factors of the
nucleon},
Journal = {Physical Review C - Nuclear Physics},
Volume = {82},
Number = {4},
Pages = {045211},
Publisher = {American Physical Society (APS)},
Year = {2010},
Month = {January},
ISSN = {0556-2813},
url = {http://hdl.handle.net/10161/4269 Duke open
access},
Abstract = {The roles played by mesons in the electromagnetic form
factors of the nucleon are explored using as a basis a model
containing vector mesons with coupling to the continuum
together with the asymptotic Q2 behavior of perturbative
QCD. Specifically, the vector dominance model (GKex)
developed by E. L. Lomon is employed, as it is known to be
very successful in representing the existing high-quality
data published to date. An analysis is made of the
experimental uncertainties present when the differences
between the GKex model and the data are expanded in
orthonormal basis functions. A main motivation for the
present study is to provide insight into how the various
ingredients in this model yield the measured behavior,
including discussions of when dipole form factors are to be
expected or not, of which mesons are the major contributors,
for instance, at low Q2 or large distances, and of what
effects are predicted from coupling to the continuum. Such
insights are first discussed in momentum space, followed by
an analysis of how different and potentially useful
information emerges when both the experimental and
theoretical electric form factors are Fourier transformed to
coordinate space. While these Fourier transforms should not
be interpreted as "charge distributions," nevertheless the
roles played by the various mesons, especially those which
are dominant at large or small distance scales, can be
explored via such experiment-theory comparisons. © 2010 The
American Physical Society.},
Doi = {10.1103/PhysRevC.82.045211},
Key = {fds246112}
}
@article{fds246156,
Author = {Horn, T and Qian, X and al, E},
Title = {Scaling Study of the Pion Electroprodeuction Cross
Sections},
Journal = {Physical Review C},
Volume = {78},
Number = {5},
Pages = {058201},
Publisher = {American Physical Society (APS)},
Year = {2008},
ISSN = {0556-2813},
url = {http://dx.doi.org/10.1103/PhysRevC.78.058201},
Abstract = {The 1H(e,e'π+)n cross section was measured for arange of
four-momentum transfer up to Q2=3.91 GeV2 at values of the
invariant mass W above the resonance region. The Q2
dependence of the longitudinal component was found to be
consistent with the Q2-scaling prediction for hard exclusive
processes. This suggests that the QCD factorization theorem
is applicable at rather low values of Q2. The transverse
term falls off slower than the naive Q-8 expectation and
remains appreciable even at Q2=3.91 GeV2. © 2008 The
American Physical Society.},
Doi = {10.1103/PhysRevC.78.058201},
Key = {fds246156}
}
@article{fds371984,
Author = {Abdul Khalek and R and Accardi, A and Adam, J and Adamiak, D and Akers, W and Albaladejo, M and Al-bataineh, A and Alexeev, MG and Ameli, F and Antonioli, P and Armesto, N and Armstrong, WR and Arratia, M and Arrington, J and Asaturyan, A and Asai, M and Aschenauer, EC and Aune,
S and Avagyan, H and Ayerbe Gayoso and C and Azmoun, B and Bacchetta, A and Baker, MD and Barbosa, F and Barion, L and Barish, KN and Barry, PC and Battaglieri, M and Bazilevsky, A and Behera, NK and Benmokhtar, F and Berdnikov, VV and Bernauer, JC and Bertone, V and Bhattacharya, S and Bissolotti, C and Boer, D and Boglione, M and Bondì, M and Boora, P and Borsa, I and Bossù, F and Bozzi, G and Brandenburg, JD and Brei, N and Bressan, A and Brooks, WK and Bufalino, S and Bukhari, MHS and Burkert,
V and Buttimore, NH and Camsonne, A and Celentano, A and Celiberto, FG and Chang, W and Chatterjee, C and Chen, K and Chetry, T and Chiarusi, T and Chien, YT and Chiosso, M and Chu, X and Chudakov, E and Cicala, G and Cisbani, E and Cloet, IC and Cocuzza, C and Cole, PL and Colella, D and Collins, JL and Constantinou, M and Contalbrigo, M and Contin, G and Corliss, R and Cosyn, W and Courtoy, A and Crafts, J and Cruz-Torres, R and Cuevas, RC and D'Alesio, U and Dalla Torre and S and Das, D and Dasgupta,
SS and Da Silva and C and Deconinck, W and Defurne, M and DeGraw, W and Dehmelt, K and Del Dotto and A and Delcarro, F and Deshpande, A and Detmold, W and De Vita and R and Diefenthaler, M and Dilks, C and Dixit,
DU and Dulat, S and Dumitru, A and Dupré, R and Durham,
JM},
Title = {Science Requirements and Detector Concepts for the
Electron-Ion Collider: EIC Yellow Report},
Journal = {Nuclear Physics A},
Volume = {1026},
Year = {2022},
Month = {October},
url = {http://dx.doi.org/10.1016/j.nuclphysa.2022.122447},
Abstract = {This report describes the physics case, the resulting
detector requirements, and the evolving detector concepts
for the experimental program at the Electron-Ion Collider
(EIC). The EIC will be a powerful new high-luminosity
facility in the United States with the capability to collide
high-energy electron beams with high-energy proton and ion
beams, providing access to those regions in the nucleon and
nuclei where their structure is dominated by gluons.
Moreover, polarized beams in the EIC will give unprecedented
access to the spatial and spin structure of the proton,
neutron, and light ions. The studies leading to this
document were commissioned and organized by the EIC User
Group with the objective of advancing the state and detail
of the physics program and developing detector concepts that
meet the emerging requirements in preparation for the
realization of the EIC. The effort aims to provide the basis
for further development of concepts for experimental
equipment best suited for the science needs, including the
importance of two complementary detectors and interaction
regions. This report consists of three volumes. Volume I is
an executive summary of our findings and developed concepts.
In Volume II we describe studies of a wide range of physics
measurements and the emerging requirements on detector
acceptance and performance. Volume III discusses
general-purpose detector concepts and the underlying
technologies to meet the physics requirements. These
considerations will form the basis for a world-class
experimental program that aims to increase our understanding
of the fundamental structure of all visible
matter.},
Doi = {10.1016/j.nuclphysa.2022.122447},
Key = {fds371984}
}
@article{fds331382,
Author = {Gao, H and Huang, H and Liu, T and Ping, J and Wang, F and Zhao,
Z},
Title = {Search for a hidden strange baryon-meson bound state from φ
production in a nuclear medium},
Journal = {Physical Review C},
Volume = {95},
Number = {5},
Publisher = {American Physical Society (APS)},
Year = {2017},
Month = {May},
url = {http://dx.doi.org/10.1103/PhysRevC.95.055202},
Abstract = {We investigate the hidden strange light baryon-meson system.
With the resonating-group method, two bound states, η′-N
and φ-N, are found in the quark delocalization color
screening model. Focusing on the φ-N bound state around
1950 MeV, we obtain the total decay width of about 4 MeV by
calculating the phase shifts in the resonance scattering
processes. To study the feasibility of an experimental
search for the φ-N bound state, we perform a Monte Carlo
simulation of the bound state production with an electron
beam and a gold target. In the simulation, we use the CLAS12
detector with the Forward Tagger and the BONUS12 detector in
Hall B at Jefferson Lab. Both the signal and the background
channels are estimated. We demonstrate that the signal
events can be separated from the background with some
momentum cuts. Therefore it is feasible to experimentally
search for the φ-N bound state through the near threshold
φ meson production from heavy nuclei.},
Doi = {10.1103/PhysRevC.95.055202},
Key = {fds331382}
}
@article{fds363065,
Author = {Adhikari, S and Akondi, CS and Albrecht, M and Ali, A and Amaryan, M and Asaturyan, A and Austregesilo, A and Baldwin, Z and Barbosa, F and Barlow, J and Barriga, E and Barsotti, R and Beattie, TD and Berdnikov,
VV and Black, T and Boeglin, W and Briscoe, WJ and Britton, T and Brooks,
WK and Chudakov, E and Cole, S and Cole, PL and Cortes, O and Crede, V and Dalton, MM and Deur, A and Dobbs, S and Dolgolenko, A and Dotel, R and Dugger, M and Dzhygadlo, R and Ebersole, D and Egiyan, H and Erbora, T and Ernst, A and Eugenio, P and Fanelli, C and Fegan, S and Fitches, J and Foda, AM and Furletov, S and Gan, L and Gao, H and Gasparian, A and Gleason, C and Goetzen, K and Goryachev, VS and Guo, L and Hagen, M and Hakobyan, H and Hamdi, A and Hernandez, J and Hoffman, ND and Hou, G and Huber, GM and Hurley, A and Ireland, DG and Ito, MM and Jaegle, I and Jarvis, NS and Jones, RT and Kakoyan, V and Kalicy, G and Kamel, M and Khachatryan, V and Khatchatryan, M and Kourkoumelis, C and Kuleshov,
S and Laduke, A and Larin, I and Lawrence, D and Lersch, DI and Li, H and Li,
WB and Liu, B and Livingston, K and Lolos, GJ and Lorenti, L and Luckas, K and Lyubovitskij, V and Mack, D and Mahmood, A and Marukyan, H and Matveev,
V and McCaughan, M and McCracken, M and Meyer, CA and Miskimen, R and Mitchell, RE and Mizutani, K and Neelamana, V and Nerling, F and Ng, L and Ostrovidov, AI and Papandreou, Z and Paudel, C and Pauli, P and Pedroni,
R and Pentchev, L and Peters, KJ},
Title = {Search for photoproduction of axionlike particles at
GlueX},
Journal = {Physical Review D},
Volume = {105},
Number = {5},
Year = {2022},
Month = {March},
url = {http://dx.doi.org/10.1103/PhysRevD.105.052007},
Abstract = {We present a search for axionlike particles, a, produced in
photon-proton collisions at a center-of-mass energy of
approximately 4 GeV, focusing on the scenario where the
a-gluon coupling is dominant. The search uses a→γγ and
a→π+π-π0 decays, and a data sample corresponding to an
integrated luminosity of 168 pb-1 collected with the GlueX
detector. The search for a→γγ decays is performed in the
mass range of 180<ma<480 MeV, while the search for
a→π+π-π0 decays explores the 600<ma<720 MeV region. No
evidence for a signal is found, and 90% confidence-level
exclusion limits are placed on the a-gluon coupling
strength. These constraints are the most stringent to date
over much of the mass ranges considered.},
Doi = {10.1103/PhysRevD.105.052007},
Key = {fds363065}
}
@article{fds287610,
Author = {Zheng, W and Gao, H and Lalremruata, B and Zhang, Y and Laskaris, G and Snow, WM and Fu, CB},
Title = {Search for spin-dependent short-range force between nucleons
using optically polarized He3 gas},
Journal = {Physical Review D - Particles, Fields, Gravitation and
Cosmology},
Volume = {85},
Number = {3},
Year = {2012},
Month = {February},
ISSN = {1550-7998},
url = {http://dx.doi.org/10.1103/PhysRevD.85.031505},
Abstract = {We propose a new method to detect short-range P- and
T-violating interactions between nucleons, based on
measuring the precession frequency shift of polarized He3
nuclei in the presence of an unpolarized mass. To maximize
the sensitivity, a high-pressure He3 cell with thin glass
windows (250μm) is used to minimize the distance between
the mass and He3. The magnetic field fluctuation is
suppressed by using the He3 gas in a different region of the
cell as a magnetometer. Systematic uncertainties from the
magnetic properties of the mass are suppressed by flipping
both the magnetic field and spin directions. Without any
magnetic shielding, our result has already reached the
sensitivity of the current best limit. With improvement in
uniformity and stability of the field, we can further
improve the sensitivity by 2 orders of magnitude over the
force range from 10 -4-10 -2m. © 2012 American Physical
Society.},
Doi = {10.1103/PhysRevD.85.031505},
Key = {fds287610}
}
@article{fds246101,
Author = {Zheng, W and Gao, H and Lalremruata, B and Zhang, Y and Laskaris, G and Snow, WM and Fu, CB},
Title = {Search for Spin-Dependent Short-Range Force Using Optically
Polarized 3He Gas},
Journal = {Phys. Rev. D (R)},
Volume = {85},
Number = {031505},
Pages = {031505(R)},
Year = {2012},
Key = {fds246101}
}
@article{fds246069,
Author = {Liska, S and Gao, H and Chen, W and Qian, X},
Title = {Search for the N bound state from meson subthreshold
production},
Journal = {Physical Review C - Nuclear Physics},
Volume = {75},
Number = {5},
Publisher = {American Physical Society (APS)},
Year = {2007},
Month = {May},
ISSN = {0556-2813},
url = {http://dx.doi.org/10.1103/PhysRevC.75.058201},
Abstract = {The subthreshold photoproduction of mesons from heavy
nuclear targets has been suggested as a candidate to search
for the -N bound state, a quantum chromodynamics molecular
state. In this Brief Report, we present detailed Monte Carlo
studies to demonstrate the feasibility of this technique.
Further, we show that proton-induced subthreshold production
of meson from heavy nuclear targets is also suitable for
such a search. © 2007 The American Physical
Society.},
Doi = {10.1103/PhysRevC.75.058201},
Key = {fds246069}
}
@article{fds351001,
Author = {Huffman, PR and Golub, R and Gould, CR and Haase, DG and Kendellen, DP and Korobkina, E and Swank, CM and Young, AR and Ahmed, MW and Busch, M and Gao, H and Zhang, Y and Zheng, WZ and Ye, Q},
Title = {Search for the neutron electric dipole moment: Contributions
from the triangle universities nuclear laboratory},
Journal = {Proceedings of the 2011 Meeting of the Division of Particles
and Fields of the American Physical Society, DPF
2011},
Year = {2011},
Month = {January},
Abstract = {© Proceedings of the 2011 Meeting of the Division of
Particles and Fields of the American Physical Society, DPF
2011. All rights reserved. A significant fraction of the
research effort at the Triangle Universities Nuclear
Laboratory (TUNL) focuses on weak interaction studies and
searches for physics beyond the Standard Model. One major
effort is the development of a new experimental technique to
search for the neutron electric dipole moment (nEDM) that
offers the potential for a factor of 100 increase in
sensitivity over existing measurements. The search for this
moment has the potential to reveal new sources of time
reversal (T) and charge-conjugation-and-parity (CP)
violation and to challenge calculations that propose
extensions to the Standard Model. We provide a brief
overview of the experiment as a whole and discuss the work
underway at TUNL as part of this effort.},
Key = {fds351001}
}
@article{fds351002,
Author = {Huffman, PR and Golub, R and Gould, CR and Haase, DG and Kendellen, DP and Korobkina, E and Swank, CM and Young, AR and Ahmed, MW and Busch, M and Gao, H and Zhang, Y and Zheng, WZ and Ye, Q},
Title = {Search for the neutron electric dipole moment: Contributions
from the triangle universities nuclear laboratory},
Journal = {Proceedings of the 2011 Meeting of the Division of Particles
and Fields of the American Physical Society, DPF
2011},
Year = {2011},
Month = {January},
Abstract = {A significant fraction of the research effort at the
Triangle Universities Nuclear Laboratory (TUNL) focuses on
weak interaction studies and searches for physics beyond the
Standard Model. One major effort is the development of a new
experimental technique to search for the neutron electric
dipole moment (nEDM) that offers the potential for a factor
of 100 increase in sensitivity over existing measurements.
The search for this moment has the potential to reveal new
sources of time reversal (T) and charge-conjugation-and-parity
(CP) violation and to challenge calculations that propose
extensions to the Standard Model. We provide a brief
overview of the experiment as a whole and discuss the work
underway at TUNL as part of this effort.},
Key = {fds351002}
}
@article{fds246011,
Author = {Chu, PH and Dennis, A and Fu, CB and Gao, H and Khatiwada, R and Laskaris,
G and Li, K and Smith, E and Snow, WM and Yan, H and Zheng,
W},
Title = {Searches for possible T-odd and P-odd short range
interactions using polarized nuclei},
Journal = {EPJ Web of Conferences},
Volume = {66},
Pages = {05003-05003},
Publisher = {E D P SCIENCES},
Editor = {Lunardi, S and Bizzeti, P and Bucci, C and Chiari, M and Dainese, A and Di
Nezza, P and Menegazzo, R and Nannini, A and Signorini, C and Valiente-Dobon, J},
Year = {2014},
Month = {April},
url = {http://dx.doi.org/10.1051/epjconf/20146605003},
Abstract = {Various theories predict the possible existence of T-odd and
P-odd shortrange forces between spin 1/2 fermions,
proportional to S· r where S is the fermion spin and r is
the separation between particles. We use ensembles of
polarized nuclei and an un-polarized mass to search for such
a force over sub-mm ranges. We established an improved upper
bound on the product g sgpn of the scalar coupling to
particles in the un-polarized mass and the pseudo-scalar
coupling of polarized neutrons for force ranges from 10-4 to
10-2 m, corresponding to a mass range of 2· 10-3 to 2·
10-5 eV for the exchange boson [1]. © Owned by the authors,
published by EDP Sciences, 2014.},
Doi = {10.1051/epjconf/20146605003},
Key = {fds246011}
}
@article{fds348388,
Author = {Ji, W and Fu, CB and Gao, H},
Title = {Searching for new spin-dependent interactions with SmCo5
spin sources and a spin-exchange-relaxation-free
comagnetometer},
Journal = {Physical Review D},
Volume = {95},
Number = {7},
Year = {2017},
Month = {April},
url = {http://dx.doi.org/10.1103/PhysRevD.95.075014},
Abstract = {We propose a novel method to search for possible new
macroscale spin- and/or velocity-dependent forces (SVDFs)
based on specially designed SmCo5 spin sources and a spin
exchange relaxation-free (SERF) comagnetometer. A simulation
shows that, by covering a SmCo5 permanent magnet with a
layer of pure iron, a high net spin density source of about
1×1022/cm3 could be obtained. Taking advantages of the high
spin density of this iron-shielded SmCo5 and the high
sensitivity of the SERF, the proposed method could set up
new limits of greater than 10 orders of magnitude more
sensitive than those from previous experiments or proposals
in exploring SVDFs in force ranges larger than 1
cm.},
Doi = {10.1103/PhysRevD.95.075014},
Key = {fds348388}
}
@article{fds246146,
Author = {H. Gao and al, DDE},
Title = {Separated spectral function for the quasifree 12C(e,e'p)
reaction},
Journal = {Phys. Rev. C},
Volume = {61},
Pages = {061602R},
Year = {2000},
Key = {fds246146}
}
@article{fds246029,
Author = {Dutta, D and van Westrum, D and Abbott, D and Ahmidouch, A and Amatuni,
TA and Armstrong, C and Arrington, J and Assamagan, KA and Bailey, K and Baker, OK and Barrow, S and Beard, K and Beatty, D and Beedoe, S and Beise,
E and Belz, E and Bochna, C and Bosted, PE and Breuer, H and Bruins, EEW and Carlini, R and Cha, J and Chant, N and Chrien, RE and Cothran, C and Cummings, WJ and Danagoulian, S and Day, D and DeSchepper, D and Ducret,
JE and Duncan, F and Dunne, J and Eden, T and Ent, R and Fortune, HT and Frolov, V and Geesaman, DF and Gao, H and Gilman, R and Guèye, P and Hansen, JO and Hinton, W and Holt, RJ and Jackson, C and Jackson, HE and Jones, C and Kaufman, S and Kelly, JJ and Keppel, C and Khandaker, M and Kim, W and Kinney, E and Klein, A and Koltenuk, D and Kramer, L and Lorenzon, W and McFarlane, K and Mack, DJ and Madey, R and Markowitz, P and Martin, J and Mateos, A and Meekins, D and Meier, E and Miller, MA and Milner, R and Mitchell, J and Mohring, R and Mkrtchyan, H and Nathan,
AM and Niculescu, G and Niculescu, I and O’Neill, TG and Potterveld,
D and Price, JW and Reinhold, J and Salgado, C and Schiffer, JP and Segel,
RE and Stoler, P and Suleiman, R and Sawafta, R and Sutter, RJ and Tadevosyan, V and Tang, L and Terburg, B and Welch, TP and Williamson,
C and Wood, S and Yan, C and Yang, JC and Yu, J and Zeidman, B and Zhao, W and Zihlmann, B},
Title = {Separated spectral functions for the quasifree [Formula
Presented] reaction},
Journal = {Physical Review C - Nuclear Physics},
Volume = {61},
Number = {6},
Pages = {5},
Year = {2000},
Month = {January},
url = {http://dx.doi.org/10.1103/PhysRevC.61.061602},
Abstract = {A separation of the longitudinal and transverse [Formula
Presented] cross sections in the quasifree region has been
performed in parallel kinematics at [Formula Presented] of
0.64 and 1.8 [Formula Presented] for initial proton momentum
[Formula Presented] MeV. The separated transverse and
longitudinal spectral functions at [Formula Presented] show
significant differences for missing energy between 25 and 60
MeV indicating a breakdown in the single nucleon knockout
picture. The transverse spectral functions exhibit definite
momentum transfer dependence. © 2000 The American Physical
Society.},
Doi = {10.1103/PhysRevC.61.061602},
Key = {fds246029}
}
@article{fds370087,
Author = {Byer, D and Khachatryan, V and Gao, H and Akushevich, I and Ilyichev, A and Peng, C and Prokudin, A and Srednyak, S and Zhao,
Z},
Title = {SIDIS-RC EvGen: A Monte-Carlo event generator of
semi-inclusive deep inelastic scattering with the
lowest-order QED radiative corrections},
Journal = {Computer Physics Communications},
Volume = {287},
Year = {2023},
Month = {June},
url = {http://dx.doi.org/10.1016/j.cpc.2023.108702},
Abstract = {SIDIS-RC EvGen is a C++ standalone Monte-Carlo event
generator for studies of semi-inclusive deep inelastic
scattering (SIDIS) processes at medium to high lepton beam
energies. In particular, the generator contains binary and
library components for generating SIDIS events and
calculating cross sections for unpolarized or longitudinally
polarized beam and unpolarized, longitudinally or
transversely polarized target. The structure of the
generator incorporates transverse momentum-dependent parton
distribution and fragmentation functions, whereby we obtain
multi-dimensional binned simulation results, which will
facilitate the extraction of important information about the
three-dimensional nucleon structure from SIDIS measurements.
In order to build this software, we have used recent
elaborate QED calculations of the lowest-order radiative
effects, applied to the leading order Born cross section in
SIDIS. In this paper, we provide details on the theoretical
formalism as well as the construction and operation of
SIDIS-RC EvGen, e.g., how we handle the event generation
process and perform multi-dimensional integration. We also
provide example programs, flowcharts, and numerical results
on azimuthal transverse single-spin asymmetries. Program
summary: Program title: SIDIS-RC EvGen CPC Library link to
program files: https://doi.org/10.17632/thrkn96ydd.1
Licensing provisions: GNU General Public License Version 3
Developer's repository link: https://github.com/duanebyer/sidis
Programming language: C++, Python External packages: FOAM,
ROOT, GSL, VEGAS, Cubature, Cog, WW-SIDIS, MSTWPDF Nature of
problem: The task is to first create a code for calculations
of the leading order Born cross section as well as radiative
corrections (RCs) at the next-to-leading order (NLO) of the
cross section of lepton-hadron semi-inclusive deep inelastic
scattering (SIDIS) at medium to high beam energies with
incident unpolarized or longitudinally polarized lepton beam
and unpolarized, longitudinally or transversely polarized
target, enabling to compute azimuthal single-target and
double-beam-target spin asymmetries. Afterwards, a
Monte-Carlo event generator based upon this code is
developed, where in the coding and simulation processes
multi-dimensional integrals need to be calculated precisely
to obtain the exact NLO RCs to the SIDIS cross section with
high precision beyond ultra-relativistic limit, which means
that the lepton mass is taken into account. Solution method:
The project for building the SIDIS-RC EvGen software is
divided into a library component called libsidis, for the
purpose of calculating the inelastic tail to the SIDIS total
cross section, and a binary component called sidisgen, for
generating events. The Monte-Carlo event generation is
performed through the usage of the FOAM library, by applying
a spatial partitioning method with hyper-cubical “foam of
cells”. The multi-dimensional numerical integration is
carried out by the GSL, VEGAS, and Cubature packages. The
SIDIS structure functions that describe the SIDIS scattering
process, and which are given in terms of transverse
momentum-dependent parton distribution and fragmentation
functions, are calculated in Gaussian and
Wandzura–Wilczek-type approximations and implemented in
the generator accordingly. Additional comments including
restrictions and unusual features: The restrictions depend
on the complexity of problems, limited by CPU time. As a
consequence, the program running time is of order of several
minutes to hours. SIDIS-RC EvGen does not comprise yet the
contribution coming from the radiative tail of exclusive
lepton-hadron reactions, which is a separate contribution
involving exclusive structure functions that are currently
not well known. Developer's repository maintained by Duane
Byer; Department of Physics, Duke University.},
Doi = {10.1016/j.cpc.2023.108702},
Key = {fds370087}
}
@article{fds246006,
Author = {Zhao, YX and Wang, Y and Allada, K and Aniol, K and Annand, JRM and Averett, T and Benmokhtar, F and Bertozzi, W and Bradshaw, PC and Bosted, P and Camsonne, A and Canan, M and Cates, GD and Chen, C and Chen,
JP and Chen, W and Chirapatpimol, K and Chudakov, E and Cisbani, E and Cornejo, JC and Cusanno, F and Dalton, MM and Deconinck, W and De Jager,
CW and De Leo and R and Deng, X and Deur, A and Ding, H and Dolph, PAM and Dutta,
C and Dutta, D and El Fassi and L and Frullani, S and Gao, H and Garibaldi, F and Gaskell, D and Gilad, S and Gilman, R and Glamazdin, O and Golge, S and Guo, L and Hamilton, D and Hansen, O and Higinbotham, DW and Holmstrom,
T and Huang, J and Huang, M and Ibrahim, HF and Iodice, M and Jiang, X and Jin, G and Jones, MK and Katich, J and Kelleher, A and Kim, W and Kolarkar,
A and Korsch, W and Lerose, JJ and Li, X and Li, Y and Lindgren, R and Liyanage, N and Long, E and Lu, HJ and Margaziotis, DJ and Markowitz, P and Marrone, S and McNulty, D and Meziani, ZE and Michaels, R and Moffit, B and Muñoz Camacho and C and Nanda, S and Narayan, A and Nelyubin, V and Norum,
B and Oh, Y and Osipenko, M and Parno, D and Peng, JC and Phillips, SK and Posik, M and Puckett, AJR and Qian, X and Qiang, Y and Rakhman, A and Ransome, R and Riordan, S and Saha, A and Sawatzky, B and Schulte, E and Shahinyan, A and Shabestari, MH and Širca, S and Stepanyan, S and Subedi, R and Sulkosky, V and Tang, LG and Tobias, A and Urciuoli,
GM},
Title = {Single spin asymmetries in charged kaon production from
semi-inclusive deep inelastic scattering on a transversely
polarized He 3 target},
Journal = {Physical Review C - Nuclear Physics},
Volume = {90},
Number = {5},
Pages = {055201},
Publisher = {American Physical Society (APS)},
Year = {2014},
Month = {November},
ISSN = {0556-2813},
url = {http://dx.doi.org/10.1103/PhysRevC.90.055201},
Abstract = {We report the first measurement of target single spin
asymmetries of charged kaons produced in semi-inclusive deep
inelastic scattering of electrons off a transversely
polarized He3 target. Both the Collins and Sivers moments,
which are related to the nucleon transversity and Sivers
distributions, respectively, are extracted over the
kinematic range of 0.1<xbj<0.4 for K+ and K- production.
While the Collins and Sivers moments for K+ are consistent
with zero within the experimental uncertainties, both
moments for K- favor negative values. The Sivers moments are
compared to the theoretical prediction from a
phenomenological fit to the world data. While the K+ Sivers
moments are consistent with the prediction, the K- results
differ from the prediction at the 2-sigma
level.},
Doi = {10.1103/PhysRevC.90.055201},
Key = {fds246006}
}
@article{fds246111,
Author = {al, HGWXQE},
Title = {Single Spin Asymmetries in Charged Pion Production from
Semi-Inclusive Deep Inelastic Scattering on a Transversely
Polarized 3He Target},
Journal = {Phys. Rev. Lett.},
Volume = {107},
Number = {7},
Pages = {072003},
Year = {2011},
url = {http://www.ncbi.nlm.nih.gov/pubmed/21902386},
Abstract = {We report the first measurement of target single spin
asymmetries in the semi-inclusive (3)He(e,e'π(±))X
reaction on a transversely polarized target. The experiment,
conducted at Jefferson Lab using a 5.9 GeV electron beam,
covers a range of 0.16 < x < 0.35 with 1.4 < Q(2) < 2.7
GeV(2). The Collins and Sivers moments were extracted from
the azimuthal angular dependence of the measured
asymmetries. The π(±) Collins moments for (3)He are
consistent with zero, except for the π(+) moment at x =
0.35, which deviates from zero by 2.3σ. While the π(-)
Sivers moments are consistent with zero, the π(+) Sivers
moments favor negative values. The neutron results were
extracted using the nucleon effective polarization and
measured cross section ratios of proton to (3)He, and are
largely consistent with the predictions of phenomenological
fits and quark model calculations.},
Doi = {10.1103/physrevlett.107.072003},
Key = {fds246111}
}
@article{fds246010,
Author = {Allada, K and Zhao, YX and Aniol, K and Annand, JRM and Averett, T and Benmokhtar, F and Bertozzi, W and Bradshaw, PC and Bosted, P and Camsonne, A and Canan, M and Cates, GD and Chen, C and Chen, JP and Chen,
W and Chirapatpimol, K and Chudakov, E and Cisbani, E and Cornejo, JC and Cusanno, F and Dalton, M and Deconinck, W and De Jager and CW and De Leo,
R and Deng, X and Deur, A and Ding, H and Dolph, PAM and Dutta, C and Dutta,
D and El Fassi and L and Frullani, S and Gao, H and Garibaldi, F and Gaskell,
D and Gilad, S and Gilman, R and Glamazdin, O and Golge, S and Guo, L and Hamilton, D and Hansen, O and Higinbotham, DW and Holmstrom, T and Huang, J and Huang, M and Ibrahim, HF and Iodice, M and Jiang, X and Jin,
G and Jones, MK and Katich, J and Kelleher, A and Kim, W and Kolarkar, A and Korsch, W and Lerose, JJ and Li, X and Li, Y and Lindgren, R and Liyanage,
N and Long, E and Lu, HJ and Margaziotis, DJ and Markowitz, P and Marrone,
S and McNulty, D and Meziani, ZE and Michaels, R and Moffit, B and Camacho,
CM and Nanda, S and Narayan, A and Nelyubin, V and Norum, B and Oh, Y and Osipenko, M and Parno, D and Peng, JC and Phillips, SK and Posik, M and Puckett, AJR and Qian, X and Qiang, Y and Rakhman, A and Ransome, R and Riordan, S and Saha, A and Sawatzky, B and Schulte, E and Shahinyan, A and Shabestari, MH and Širca, S and Stepanyan, S and Subedi, R and Sulkosky, V and Tang, LG and Tobias, A and Urciuoli, GM and Vilardi,
I},
Title = {Single spin asymmetries of inclusive hadrons produced in
electron scattering from a transversely polarized 3 He
target},
Journal = {Physical Review C - Nuclear Physics},
Volume = {89},
Number = {4},
Pages = {042201(R)},
Publisher = {American Physical Society (APS)},
Year = {2014},
Month = {April},
ISSN = {0556-2813},
url = {http://dx.doi.org/10.1103/PhysRevC.89.042201},
Abstract = {We report the first measurement of target single spin
asymmetries (AN) in the inclusive hadron production
reaction, e+3He↑→h+X, using a transversely polarized 3He
target. The experiment was conducted at Jefferson Lab in
Hall A using a 5.9-GeV electron beam. Three types of hadrons
(π±, K±, and proton) were detected in the transverse
hadron momentum range 0.54 <pT< 0.74 GeV/c. The range of xF
for pions was -0.29 <xF< -0.23 and for kaons was -0.25 <xF<
-0.18. The observed asymmetry strongly depends on the type
of hadron. A positive asymmetry is observed for π+ and K+.
A negative asymmetry is observed for π-. The magnitudes of
the asymmetries follow |Aπ-|<|Aπ+|<|AK+|. The K- and
proton asymmetries are consistent with zero within the
experimental uncertainties. The π+ and π- asymmetries
measured for the 3He target and extracted for neutrons are
opposite in sign with a small increase observed as a
function of pT. © 2014 American Physical
Society.},
Doi = {10.1103/PhysRevC.89.042201},
Key = {fds246010}
}
@article{fds246014,
Author = {Gao, H},
Title = {Spin-dependent compton scattering from 3He and
the neutron spin polarizabilities},
Journal = {Chiral Dynamics 2006 - Proceedings of the 5th International
Workshop on Chiral Dynamics, Theory and Experiment, CD
2006},
Pages = {417-419},
Year = {2007},
Month = {December},
Abstract = {A new experiment is being planned at the High Intensity
Gamma Source (HIγS) at Duke Free Electron Laboratory for
first measurements of the spin-dependent asymmetries from
elastic Compton scattering of circularly polarized photons
from a high-pressure polarized 3He gas target. The new
experiment will allow for an extraction of neutron spin
polarizabilities.},
Key = {fds246014}
}
@article{fds246012,
Author = {Laskaris, G and Ye, Q and Lalremruata, B and Ye, QJ and Ahmed, MW and Averett, T and Deltuva, A and Dutta, D and Fonseca, AC and Gao, H and Golak, J and Huang, M and Karwowski, HJ and Mueller, JM and Myers, LS and Peng, C and Perdue, BA and Qian, X and Sauer, PU and Skibiński, R and Stave, S and Tompkins, JR and Weller, HR and Witała, H and Wu, YK and Zhang, Y and Zheng, W},
Title = {Spin-dependent cross sections from the three-body
photodisintegration of He 3 at incident energies of 12.8 and
14.7 MeV},
Journal = {Physical Review C - Nuclear Physics},
Volume = {89},
Number = {2},
Pages = {024002},
Publisher = {American Physical Society (APS)},
Year = {2014},
Month = {February},
ISSN = {0556-2813},
url = {http://dx.doi.org/10.1103/PhysRevC.89.024002},
Abstract = {The first measurement of the three-body photodisintegration
of polarized He3 using a circularly polarized photon beam
has been performed at incident energies of 12.8 and 14.7
MeV. This measurement was carried out at the high-intensity
γ-ray source located at Triangle Universities Nuclear
Laboratory. A high-pressure He3 target, polarized via spin
exchange optical pumping with alkali metals, was used in the
experiment. The spin-dependent double- and
single-differential cross sections from 3Heâ- (γâ-,n)pp
for laboratory angles varying from 30â̂̃ to 165â̂̃ are
presented and compared with state-of-the-art three-body
calculations. The data reveal the importance of including
the Coulomb interaction between protons in the three-body
calculations. © 2014 American Physical Society.},
Doi = {10.1103/PhysRevC.89.024002},
Key = {fds246012}
}
@article{fds246107,
Author = {Hasell, DK and Milner, RG and Redwine, RP and Alarcon, R and Gao, H and Kohl, M and Calarco, JR},
Title = {Spin-dependent electron scattering from polarized protons
and deuterons with the BLAST experiment at
MIT-bates},
Journal = {Annual Review of Nuclear and Particle Science},
Volume = {61},
Number = {1},
Pages = {409-433},
Publisher = {ANNUAL REVIEWS},
Year = {2011},
Month = {November},
ISSN = {0163-8998},
url = {http://dx.doi.org/10.1146/annurev-nucl-100809-131956},
Abstract = {The Bates Large Acceptance Spectrometer Toroid (BLAST)
experiment was operated at the MIT-Bates Linear Accelerator
Center from 2003 until 2005. The experiment was designed to
exploit the power of a polarized electron beam incident on
polarized targets of hydrogen and deuterium to measure, in a
systematic manner, the neutron, proton, and deuteron form
factors as well as other aspects of the electromagnetic
interaction on few-nucleon systems. We briefly describe the
experiment, and present and discuss the numerous results
obtained. © 2011 by Annual Reviews. All rights
reserved.},
Doi = {10.1146/annurev-nucl-100809-131956},
Key = {fds246107}
}
@article{fds246015,
Author = {Malace, SP and Sawatzky, BD and Gao, H},
Title = {Studies of single-photoelectron response and of performance
in magnetic field of a H8500C-03 photomultiplier
tube},
Journal = {Journal of Instrumentation},
Volume = {8},
Number = {9},
Pages = {P09004-P09004},
Publisher = {IOP Publishing},
Year = {2013},
Month = {September},
url = {http://dx.doi.org/10.1088/1748-0221/8/09/P09004},
Abstract = {We studied the single-photoelectron detection capabilities
of a multianode photomultiplier tube H8500C-03 and its
performance in high magnetic field. Our results show that
the device can readily resolve signals at the single
photoelectron level making it suitable for photon detection
in both threshold and ring imaging Cherenkov detectors. We
also found that a large longitudinal magnetic field, up to
300 Gauss, induces a change in the relative output of at
most 55% for an edge pixel, and of at most 15% for a central
pixel. The H8500C-03 signal loss in transverse magnetic
fields it is significantly more pronounced than for the
longitudinal case. Our studies of single photoelectron
reduction in magnetic fields point to the field induced
misfocusing of the photoelectron extracted from the
photocathode as primary cause of signal loss. With
appropriate shielding this PMT could function in high
magnetic field environments. © 2013 IOP Publishing Ltd and
Sissa Medialab srl.},
Doi = {10.1088/1748-0221/8/09/P09004},
Key = {fds246015}
}
@article{fds376417,
Author = {Qian, X and Gao, H and Chen, J-P and Chudakov, E},
Title = {Study of semi-inclusive deep inelastic (e, e 'pi(+/-))
production with a polarized He-3 target},
Journal = {SPIN PHYSICS},
Volume = {1149},
Pages = {457-+},
Publisher = {AMER INST PHYSICS},
Year = {2009},
Month = {January},
ISBN = {978-0-7354-0686-5},
Key = {fds376417}
}
@article{fds339242,
Author = {Qian, X and Gao, H and Chen, JP and Chudakov, E},
Title = {Study of semi-inclusive deep inelastic (e,
e'π±) production with a polarized3He
target},
Journal = {AIP Conference Proceedings},
Volume = {1149},
Pages = {457-460},
Publisher = {AMER INST PHYSICS},
Editor = {Crabb, DG and Day, DB and Liuti, S and Zheng, X and Poelker, M and Prok,
Y},
Year = {2009},
Month = {August},
ISBN = {9780735406865},
url = {http://dx.doi.org/10.1063/1.3215688},
Abstract = {The 12 GeV upgrade at Jefferson Lab will open a new era of
precision measurement of the Transverse Momentum Dependent
parton distribution functions (TMDs) through the
Semi-Inclusive Deep-Inelastic Scattering (SIDIS). In this
talk, we discussed the projected results on measurements of
TMDs using a newly proposed large acceptance solenoid
detector together with the standard Hall A polarized3He
target. The high luminosity and the large acceptance
detector will allow for a precise 3-D (x, z and PT) mapping
of azimuthal asymmetries. Furthermore, the full 2π
azimuthal angular coverage for the solenoid detector is
essential to control the relevant systematic uncertainties
in extracting the azimuthal asymmetries. With a 40 cm long
transversely polarized3He target, a total of 60 days of beam
time at a beam current of 15 μA, we can determine tensor
charge of d quark to 10% in a model independent way. The
extracted Sivers asymmetry will provide important
information to understand the correlation between the quark
orbital angular momentum and the nucleon
spin.},
Doi = {10.1063/1.3215688},
Key = {fds339242}
}
@article{fds246113,
Author = {al, HGWXQE},
Title = {Study of the A(e,e'pi^+) Reaction on 1H, 2H, 12C, 27Al, 63Cu
and 197Au},
Journal = {Phys. Rev. C},
Volume = {81},
Pages = {055209},
Year = {2010},
Key = {fds246113}
}
@article{fds339640,
Author = {Gao, H and Chen, W and Zong, X},
Title = {Study of the GDH sum rule of 3He at
HIGS},
Journal = {Proceedings of Science},
Volume = {86},
Year = {2009},
Month = {January},
Abstract = {In this talk, we discuss an experiment that has been
conducted recently at the High Intensity Gamma Source (HIGS)
facility at the Duke Free Electron Laser Laboratory (DFELL)
on three-body photodisintegration of circularly polarized
photons from a longtudinally polarized 3He target at an
incident photon energy of 11.4 MeV. The target was based on
the technique of spin-exchange optical pumping with hybrid
rubidium and potassium vapors. Neutrons from the three-body
photodisintegration process were detected in the experiment
using liquid scintillator neutron detectors. We also discuss
future prospects at HIGS with the Gerasimov-Drell-Hearn
(GDH) integral measurement of 3He.},
Key = {fds339640}
}
@article{fds246168,
Author = {Gao, KKEAIH},
Title = {The $Q^2$-Dependence of the Neutron Spin Structure Function
$g_2^n$ at Low $Q^2$'' nucl-ex/0506005.},
Journal = {Physical Review Letters},
Volume = {95},
Pages = {142002},
Year = {2005},
Key = {fds246168}
}
@article{fds374224,
Author = {Ahmed, MW and Gao, H and Howell, CR and Lee, D},
Title = {The 9th International Workshop on Chiral Dynamics
2018},
Journal = {Proceedings of Science},
Volume = {317},
Year = {2018},
Month = {January},
Key = {fds374224}
}
@article{fds246122,
Author = {Hasell, D and Akdogan, T and Alarcon, R and Bertozzi, W and Booth, E and Botto, T and Calarco, JR and Clasie, B and Crawford, C and DeGrush, A and Dow, K and Dutta, D and Farkhondeh, M and Fatemi, R and Filoti, O and Franklin, W and Gao, H and Geis, E and Gilad, S and Hersman, W and Holtrop,
M and Ihloff, E and Karpius, P and Kelsey, J and Kohl, M and Kolster, H and Krause, S and Lee, T and Maschinot, A and Matthews, J and McIlhany, K and Meitanis, N and Milner, R and Rapaport, J and Redwine, R and Seely, J and Shinozaki, A and Sindile, A and Širca, S and Smith, T and Sobczynski,
S and Tanguay, M and Tonguc, B and Tschalaer, C and Tsentalovich, E and Turchinetz, W and van den Brand, JFJ and van der Laan, J and Wang, F and Wise, T and Xiao, Y and Xu, W and Zhang, C and Zhou, Z and Ziskin, V and Zwart, T},
Title = {The BLAST experiment},
Journal = {Nuclear Instruments and Methods in Physics Research, Section
A: Accelerators, Spectrometers, Detectors and Associated
Equipment},
Volume = {603},
Number = {3},
Pages = {247-262},
Publisher = {Elsevier BV},
Year = {2009},
Month = {May},
ISSN = {0168-9002},
url = {http://dx.doi.org/10.1016/j.nima.2009.01.131},
Abstract = {The Bates large acceptance spectrometer toroid (BLAST)
experiment was operated at the MIT-Bates Linear Accelerator
Center from 2003 until 2005. The detector and experimental
program were designed to study, in a systematic manner, the
spin-dependent electromagnetic interaction in few-nucleon
systems. As such the data will provide improved measurements
for neutron, proton, and deuteron form factors. The data
will also allow details of the reaction mechanism, such as
the role of final state interactions, pion production, and
resonances to be studied. The experiment used: a
longitudinally polarized electron beam stored in the South
Hall Storage Ring; a highly polarized, isotopically pure,
internal gas target of hydrogen or deuterium provided by an
atomic beam source; and a symmetric, general purpose
detector based on a toroidal spectrometer with tracking,
time-of-flight, Cherenkov, and neutron detectors. Details of
the experiment and operation are presented. © 2009 Elsevier
B.V. All rights reserved.},
Doi = {10.1016/j.nima.2009.01.131},
Key = {fds246122}
}
@article{fds246154,
Author = {Qian, X and Chen, W and al, HGE},
Title = {The extraction of phi-N total differential cross section
from d(gamma,pK^+K^-)n},
Journal = {Phys. Lett. B},
Volume = {680},
Pages = {417},
Year = {2009},
Key = {fds246154}
}
@article{fds246075,
Author = {Qian, X and Chen, W and Gao, H and Hicks, K and Kramer, K and Laget, JM and Mibe, T and Stepanyan, S and Tedeschi, DJ and Xu, W and Adhikari, KP and Amaryan, M and Anghinolfi, M and Baghdasaryan, H and Ball, J and Battaglieri, M and Batourine, V and Bedlinskiy, I and Bellis, M and Biselli, AS and Bookwalter, C and Branford, D and Briscoe, WJ and Brooks, WK and Burkert, VD and Careccia, SL and Carman, DS and Cole, PL and Collins, P and Crede, V and D'Angelo, A and Daniel, A and Dashyan, N and De
Vita, R and De Sanctis and E and Deur, A and Dey, B and Dhamija, S and Dickson, R and Djalali, C and Dodge, GE and Doughty, D and Dupre, R and Eugenio, P and Fedotov, G and Fegan, S and Fersch, R and Fradi, A and Gabrielyan, MY and Gilfoyle, GP and Giovanetti, KL and Girod, FX and Goetz, JT and Gohn, W and Golovatch, E and Gothe, RW and Griffioen, KA and Guidal, M and Guo, L and Hafidi, K and Hakobyan, H and Hanretty, C and Hassall, N and Heddle, D and Holtrop, M and Hyde, CE and Ilieva, Y and Ireland, DG and Ishkhanov, BS and Isupov, EL and Jawalkar, SS and Johnstone, JR and Joo, K and Keller, D and Khandaker, M and Khetarpal,
P and Kim, W and Klein, A and Klein, FJ and Kubarovsky, V and Kuleshov, SV and Kuznetsov, V and Livingston, K and Lu, HY and Martinez, D and Mayer, M and McCracken, ME and McKinnon, B and Meyer, CA and Mineeva, T and Mirazita,
M and Mokeev, V and Moriya, K and Morrison, B and Munevar, E and Nadel-Turonski, P and Nasseripour, R and Nepali, CS and Niccolai, S and Niculescu, G},
Title = {The extraction of ϕ - N total cross section from d (γ, p
K+ K-) n},
Journal = {Physics Letters, Section B: Nuclear, Elementary Particle and
High-Energy Physics},
Volume = {680},
Number = {5},
Pages = {417-422},
Publisher = {Elsevier BV},
Year = {2009},
Month = {October},
ISSN = {0370-2693},
url = {http://dx.doi.org/10.1016/j.physletb.2009.09.024},
Abstract = {We report on the first measurement of the differential cross
section of φ{symbol}-meson photoproduction for the d (γ, p
K+ K-) n exclusive reaction channel. The experiment was
performed using a tagged-photon beam and the CEBAF Large
Acceptance Spectrometer (CLAS) at Jefferson Lab. A combined
analysis using data from the d (γ, p K+ K-) n channel and
those from a previous publication on coherent φ{symbol}
production on the deuteron has been carried out to extract
the φ{symbol} - N total cross section, σφ{symbol} N. The
extracted φ{symbol} - N total cross section favors a value
above 20 mb. This value is larger than the value extracted
using vector-meson dominance models for φ{symbol}
photoproduction on the proton. © 2009 Elsevier
B.V.},
Doi = {10.1016/j.physletb.2009.09.024},
Key = {fds246075}
}
@article{fds246187,
Author = {H. Gao and al, KAE},
Title = {The flavor asymmetry of the light quark sea from
semi-inclusive},
Journal = {Phys. Rev. Lett.},
Volume = {25},
Pages = {5519},
Year = {1998},
Key = {fds246187}
}
@article{fds37605,
Author = {D. Dutta and H. Gao},
Title = {The Generalized Counting Rule and Oscillatory
Scaling},
Journal = {Physical Review C (Rapid Communications)},
Volume = {71},
Pages = {032201(R)},
Year = {2005},
Key = {fds37605}
}
@article{fds246185,
Author = {H. Gao and DeSchepper, D and Kramer, LH and Pate, SF and Ackerstaff, K and Carr,
RW and Court, GR and Dvoredsky, A and Gao, H and Golendoukhin, A and Hansen, JO and Holler, Y and Jones, CE and Kelsey, JF and Kinney, E and Korsch, W and Lee, K and Martin, JW and McKeown, RD and Milner, RG and Niczyporuk, M and Pitt, ML and Poolman, HR and Röper, G and Shin, T and Sowinski, J and Steffens, E and Stewart, J and Stock, F and Sutter, M and Tallini, H and Tipton, B and VanBommel, R and Wise, T and Zapfe-Düren,
K},
Title = {The HERMES polarized 3He internal gas
target},
Journal = {Nuclear Instruments and Methods in Physics Research, Section
A: Accelerators, Spectrometers, Detectors and Associated
Equipment},
Volume = {419},
Number = {1},
Pages = {16-44},
Publisher = {Elsevier BV},
Year = {1998},
Month = {December},
ISSN = {0168-9002},
url = {http://dx.doi.org/10.1016/S0168-9002(98)00901-2},
Abstract = {The HERMES experiment is investigating the spin structure of
the proton and neutron via deep-inelastic scattering of
polarized positrons from polarized nuclear targets. The
polarized positrons are provided by the HERA positron
storage ring at DESY, Hamburg, Germany. The targets are pure
internal gas targets. Data acquisition began in 1995,
utilizing a polarized 3He internal gas target to study the
spin structure of the neutron. The target gas was polarized
using the metastability-exchange optical-pumping technique
and then injected into a cryogenically cooled target cell.
The target was designed to operate with either longitudinal
or transverse directions of polarization. Operating
conditions included polarizations of up to 54% and target
thicknesses of 1 × 1015 nucleons/cm2. In this paper the
HERMES polarized 3He internal gas target is described in
detail. © 1998 Published by Elsevier Science B.V. All
rights reserved.},
Doi = {10.1016/S0168-9002(98)00901-2},
Key = {fds246185}
}
@article{fds246177,
Author = {H. Gao and Ackerstaff, K and Airapetian, A and Akopov, N and Amarian, M and Andreev, V and Aschenauer, EC and Avakian, R and Avakian, H and Avetissian, A and Bains, B and Barrow, S and Beckhusen, W and Beckmann,
M and Belostotski, S and Belz, E and Benisch, T and Bernreuther, S and Bianchi, N and Blouw, J and Böttcher, H and Borissov, A and Brack, J and Braun, B and Bray, B and Brons, S and Brückner, W and Brüll, A and Bulten, HJ and Capitani, GP and Carter, P and Chumney, P and Cisbani, E and Clark, S and Colilli, S and Coombes, H and Court, GR and Delheij, P and Devitsin, E and de Jager, CW and de Sanctis, E and de Schepper, D and de
Witt Huberts and PKA and di Nezza, P and Doetse, M and Düren, M and Dvoredsky, A and Elbakian, G and Emerson, J and Fantoni, A and Fechtchenko, A and Ferstl, M and Fick, D and Fiedler, K and Filippone,
BW and Fischer, H and Fortune, HT and Franz, J and Frullani, S and Funk,
MA and Gagunashvili, ND and Galumian, P and Gao, H and Gärber, Y and Garibaldi, F and Gavrilov, G and Geiger, P and Gharibyan, V and Giordjian, V and Giuliani, F and Golendoukhin, A and Grabowski, B and Graw, G and Grebeniouk, O and Green, P and Greeniaus, G and Gricia, M and Grosshauser, C and Gute, A and Haas, JP and Hakelberg, K and Haeberliq,
W and Hansen, JO and Hasch, D and Hausse, O and Henderson, R and Henkes, T and Hertenbergern, R and Holler, Y and Holt, RJ and Ihssen, H and Izotov, A and Iodice, M and Jackson, HE and Jgoun, A and Jones, C and Kaise, R and Kelsey, J and Kinney, E and Kirsch, M and Kisselev,
A},
Title = {The HERMES Spectrometer},
Journal = {Nuclear Instruments and Methods in Physics Research, Section
A: Accelerators, Spectrometers, Detectors and Associated
Equipment},
Volume = {417},
Number = {2-3},
Pages = {230-265},
Publisher = {Elsevier BV},
Year = {1998},
Month = {November},
ISSN = {0168-9002},
url = {http://dx.doi.org/10.1016/S0168-9002(98)00769-4},
Abstract = {The HERMES experiment is collecting data on inclusive and
semi-inclusive deep inelastic scattering of polarised
positrons from polarised targets of H, D, and 3He. These
data give information on the spin structure of the nucleon.
This paper describes the forward angle spectrometer built
for this purpose. The spectrometer includes numerous
tracking chambers (micro-strip gas chambers, drift and
proportional chambers) in front of and behind a 1.3 T.m
magnetic field, as well as an extensive set of detectors for
particle identification (a lead-glass calorimeter, a
pre-shower detector, a transition radiation detector, and a
threshold Cherenkov detector). Two of the main features of
the spectrometer are its good acceptance and identification
of both positrons and hadrons, in particular pions. These
characteristics, together with the purity of the targets,
are allowing HERMES to make unique contributions to the
understanding of how the spins of the quarks contribute to
the spin of the nucleon. © 1998 Elsevier Science B. V. All
rights reserved.},
Doi = {10.1016/S0168-9002(98)00769-4},
Key = {fds246177}
}
@article{fds356028,
Author = {Pierce, J and Brock, J and Carlin, C and Keith, C and Maxwell, J and Meekins, D and Bai, X and Deur, A and Dutta, D and Gao, H and Gasparian, A and Gnanvo, K and Gu, C and Higinbotham, D and Khandaker, M and Liyanage, N and Meziane, M and Pasyuk, E and Peng, C and Punjabi, V and Xiong, W and Yan,
X and Ye, L and Zhang, Y},
Title = {The PRad windowless gas flow target},
Journal = {Nuclear Instruments and Methods in Physics Research, Section
A: Accelerators, Spectrometers, Detectors and Associated
Equipment},
Volume = {1003},
Year = {2021},
Month = {July},
url = {http://dx.doi.org/10.1016/j.nima.2021.165300},
Abstract = {We report on a windowless, high-density, gas-flow target at
Jefferson Lab that was used to measure rp, the
root-mean-square charge radius of the proton. The target
achieved its design goal of an areal density of 2 × 1018
atoms/cm2, with the gas uniformly distributed over the 4 cm
length of the cell and less than 1% residual gas outside the
cell. This design eliminated scattering from the end caps of
the target cell, a problem endemic to previous measurements
of the proton charge radius in electron scattering
experiments, and permitted a precise, model-independent
extraction of rp by reaching unprecedentedly low values of
Q2, the square of the electron's transfer of four-momentum
to the proton.},
Doi = {10.1016/j.nima.2021.165300},
Key = {fds356028}
}
@article{fds218742,
Author = {Q.J. Ye and H. Gao and others},
Title = {The production of K+K− pairs in proton-proton collisions
below the φ meson threshold},
Journal = {Phys. Rev. C},
Volume = {87},
Pages = {065203},
Year = {2013},
Month = {June},
Key = {fds218742}
}
@article{fds363990,
Author = {Gao, H and Vanderhaeghen, M},
Title = {The proton charge radius},
Journal = {Reviews of Modern Physics},
Volume = {94},
Number = {1},
Year = {2022},
Month = {March},
url = {http://dx.doi.org/10.1103/RevModPhys.94.015002},
Abstract = {Nucleons (protons and neutrons) are the building blocks of
atomic nuclei and are responsible for more than 99% of the
visible matter in the Universe. Despite decades of efforts
in studying its internal structure, there are still a number
of puzzles surrounding the proton such as its spin and
charge radius. Accurate knowledge about the proton charge
radius is not only essential for understanding how QCD works
in the nonperturbative region but also important for bound
state QED calculations of atomic energy levels. It also has
an impact on the Rydberg constant, one of the most precisely
measured fundamental constants in nature. This review
examines the latest situation concerning the proton charge
radius in light of the new experimental results from both
atomic hydrogen spectroscopy and electron-scattering
measurements, with particular focus on the latter.
Theoretical backgrounds and recent developments concerning
the determination of the proton charge radius using
different experimental techniques are also presented.
Upcoming experiments are discussed, and the deuteron charge
radius puzzle is mentioned at the end.},
Doi = {10.1103/RevModPhys.94.015002},
Key = {fds363990}
}
@article{fds246085,
Author = {Gao, H},
Title = {The radial structure of the proton and its
constituents},
Journal = {AIP Conference Proceedings},
Volume = {1441},
Pages = {21-28},
Publisher = {AIP},
Year = {2012},
Month = {May},
ISSN = {0094-243X},
url = {http://dx.doi.org/10.1063/1.3700476},
Abstract = {Understanding how quantum chromodynamics, the theory of
strong interaction, works in the low-energy region, the
so-called confinement region is one of the major challenges
facing physicists. The structure of nucleon is one of the
most active areas of research in nuclear physics addressing
this challenge. In this talk, I will review recent
progresses on electromagnetic form factors of the nucleon
including the latest intriguing situation concern the charge
radius of the proton, and new results on the strange quark
contribution to the electromagnetic structure of the nucleon
from parity-violation electron scattering. I will also
discuss recent developments in the study of the generalized
parton distribution functions which provide
three-dimensional imaging of the nucleon. © 2012 American
Institute of Physics.},
Doi = {10.1063/1.3700476},
Key = {fds246085}
}
@article{fds368410,
Author = {Baym, G and Aprahamian, A and Aidala, C and Braun-Munzinger, P and Gao,
H and Hafidi, K and Haxton, W and Jowett, J and McLerran, L and Merminga,
L and Meziani, Z-E and Milner, R and Schaefer, T and Sichtermann, E and Turner, M and Jacak, BV and Loeb, A and DiMauro, L and DiSalvo, FJ and Fisch, NJ and Fisher, D and Freedman, W and Heckman, T and Hill, WTIII and Hurd, AJ and Jones, B and Lankford, A and Page, LAJ and Ritz,
SM},
Title = {The Scientific Case for an Electron-Ion Collider},
Pages = {23-44},
Booktitle = {ASSESSMENT OF U.S.-BASED ELECTRON-ION COLLIDER
SCIENCE},
Year = {2018},
ISBN = {978-0-309-47856-4},
Key = {fds368410}
}
@article{fds246163,
Author = {Liska, S and Gao, H and Chen, W and Qian, X},
Title = {The search for $\phi$-N bound state from subthresold
production of $\phi$ meson},
Journal = {Phys. Rev. C},
Volume = {75},
Pages = {058201},
Year = {2007},
Key = {fds246163}
}
@article{fds373501,
Author = {Arrington, J and Benesch, J and Camsonne, A and Caylor, J and Chen, JP and Covrig Dusa and S and Emmert, A and Evans, G and Gao, H and Hansen, JO and Huber, GM and Joosten, S and Khachatryan, V and Liyanage, N and Meziani,
ZE and Nycz, M and Peng, C and Paolone, M and Seay, W and Souder, PA and Sparveris, N and Spiesberger, H and Tian, Y and Voutier, E and Xie, J and Xiong, W and Ye, ZY and Ye, Z and Zhang, J and Zhao, ZW and Zheng,
X},
Title = {The solenoidal large intensity device (SoLID) for JLab 12
GeV},
Journal = {Journal of Physics G: Nuclear and Particle
Physics},
Volume = {50},
Number = {11},
Year = {2023},
Month = {November},
url = {http://dx.doi.org/10.1088/1361-6471/acda21},
Abstract = {The solenoidal large intensity device (SoLID) is a new
experimental apparatus planned for Hall A at the Thomas
Jefferson National Accelerator Facility (JLab). SoLID will
combine large angular and momentum acceptance with the
capability to handle very high data rates at high
luminosity. With a slate of approved high-impact physics
experiments, SoLID will push JLab to a new limit at the QCD
intensity frontier that will exploit the full potential of
its 12 GeV electron beam. In this paper, we present an
overview of the rich physics program that can be realized
with SoLID, which encompasses the tomography of the nucleon
in 3D momentum space from semi-inclusive deep inelastic
scattering, expanding the phase space in the search for new
physics and novel hadronic effects in parity-violating DIS,
a precision measurement of J/ψ production at threshold that
probes the gluon field and its contribution to the proton
mass, tomography of the nucleon in combined coordinate and
momentum space with deep exclusive reactions, and more. To
meet the challenging requirements, the design of SoLID
described here takes full advantage of recent progress in
detector, data acquisition and computing technologies. In
addition, we outline potential experiments beyond the
currently approved program and discuss the physics that
could be explored should upgrades of CEBAF become a reality
in the future.},
Doi = {10.1088/1361-6471/acda21},
Key = {fds373501}
}
@article{fds345680,
Author = {Gao, H and Liu, T and Zhao, Z},
Title = {The TMD program at JLab},
Journal = {Proceedings of Science},
Volume = {316},
Year = {2018},
Month = {January},
url = {http://dx.doi.org/10.22323/1.316.0232},
Abstract = {As a part of the general nucleon imaging effort, there have
been many efforts to access the transverse momentum
dependent parton distributions (TMDs) by using the
semi-inclusive deep inelastic scattering (SIDIS) processes.
The recently upgraded Continuous Electron Beam Accelerator
Facility (CEBAF) at Jefferson Lab (JLab) provides golden
opportunities to study them in valence quark region. The
TMDs describe the three-dimensional, spin-correlated
distributions of quarks and gluons in the nucleon in
momentum space. The corresponding SIDIS measurements require
high intensity and polarization with large kinematic
coverage which will be provided by several different
detectors. We present an overview of the planned JLab TMD
program in the 12 GeV era.},
Doi = {10.22323/1.316.0232},
Key = {fds345680}
}
@article{fds246173,
Author = {H. Gao and al, WXE},
Title = {The Transverse Asymmetry A_T' from Quasielastic 3
He(e,e')},
Journal = {Phys. Rev. Lett.},
Volume = {85},
Number = {14},
Pages = {2900},
Year = {2000},
Abstract = {We have measured the transverse asymmetry AT′ in 3H +
(Combining right arrow above sign)e(e + (Combining right
arrow above sign), e′) quasielastic scattering in Hall
A at Jefferson Laboratory with high precision for Q2 values
from 0.1 to 0.6 (GeV/c)2. The neutron magnetic form factor
GMn was extracted based on Faddeev calculations for Q2 = 0.1
and 0.2 (GeV/c)2 with an experimental uncertainty of less
than 2%. © 2000 The American Physical
Society.},
Key = {fds246173}
}
@article{fds246034,
Author = {Kinney, ER and Cadman, RV and Brack, J and Cummings, WJ and Fedchak, JA and Fox, BD and Gao, H and Glöckle, W and Grosshauser, C and Holt, RJ and Jones, CE and Miller, MA and Nagengast, W and Owen, BR and Rith, K and Schmidt, F and Schulte, EC and Sowinski, J and Sperisen, F and Thorsland, EL and Tobey, R and Wilbert, J and Witała,
H},
Title = {Three-nucleon interactions: Evidence from polarized pd
elastic scattering},
Journal = {Nuclear Physics A},
Volume = {689},
Number = {1-2},
Pages = {33-40},
Publisher = {Elsevier BV},
Year = {2001},
Month = {June},
url = {http://dx.doi.org/10.1016/S0375-9474(01)00816-8},
Abstract = {Advances in precise computation of three-body reaction
observables have spurred new interest in experimental
measurements of proton deuteron elastic scattering,
especially with regard to spin effects. Developments in
spin-polarized internal targets for storage rings have
permitted measurements of 197 MeV polarized protons
scattering from vector polarized deuterons. This work
presents measurements of the polarization observables Ay,
iT11, and Cy,y in proton-deuteron elastic scattering. When
compared to calculations with and without three-nucleon
forces, the measurements indicate that three-nucleon forces
make a significant contribution to the observables. This
work indicates that three-body forces derived from static
nuclear properties appear to be crucial to the description
of dynamical properties.},
Doi = {10.1016/S0375-9474(01)00816-8},
Key = {fds246034}
}
@article{fds304546,
Author = {Xu, W and Dutta, D and Xiong, F and Anderson, B and Auberbach, L and Averett, T and Bertozzi, W and Black, T and Calarco, J and Cardman, L and Cates, GD and Chai, ZW and Chen, JP and Choi, S and Chudakov, E and Churchwell, S and Corrado, GS and Crawford, C and Dale, D and Deur, A and Djawotho, P and Filippone, BW and Finn, JM and Gao, H and Gilman, R and Glamazdin, AV and Glashausser, C and Glöckle, W and Golak, J and Gomez,
J and Gorbenko, VG and Hansen, JO and Hersman, FW and Higinbotham, DW and Holmes, R and Howell, CR and Hughes, E and Humensky, B and Incerti, S and de Jager, CW and Jensen, JS and Jiang, X and Jones, CE and Jones, M and Kahl, R and Kamada, H and Kievsky, A and Kominis, I and Korsch, W and Kramer, K and Kumbartzki, G and Kuss, M and Lakuriqi, E and Liang, M and Liyanage, N and LeRose, J and Malov, S and Margaziotis, DJ and Martin,
JW and McCormick, K and McKeown, RD and McIlhany, K and Meziani, ZE and Michaels, R and Miller, GW and Pace, E and Pavlin, T and Petratos, GG and Pomatsalyuk, RI and Pripstein, D and Prout, D and Ransome, RD and Roblin, Y and Rvachev, M and Saha, A and Salmè, G and Schnee, M and Shin,
T and Slifer, K and Souder, PA and Strauch, S and Suleiman, R and Sutter,
M and Tipton, B and Todor, L and Viviani, M and Vlahovic, B and Watson, J and Williamson, CF and Witała, H and Wojtsekhowski, B and Yeh, J and Zołnierczuk, P},
Title = {Transverse asymmetry AT' from the quasielastic 3He(e,e')
process and the neutron magnetic form factor.},
Journal = {Physical review letters},
Volume = {85},
Number = {14},
Pages = {2900-2904},
Year = {2000},
Month = {October},
url = {http://dx.doi.org/10.1103/physrevlett.85.2900},
Abstract = {We have measured the transverse asymmetry A(T') in
3He(e,e(')) quasielastic scattering in Hall A at Jefferson
Laboratory with high precision for Q2 values from 0.1 to 0.6
(GeV/c)(2). The neutron magnetic form factor G(n)(M) was
extracted based on Faddeev calculations for Q2 = 0.1 and 0.2
(GeV/c)(2) with an experimental uncertainty of less than
2%.},
Doi = {10.1103/physrevlett.85.2900},
Key = {fds304546}
}
@booklet{Hansen95,
Author = {J. O. Hansen and M. A. Titko and D. Deschepper and G. Dodson and T. W.
Donnelly and R. Ent and M. Farkhondeh and W. Korsch and L. H. Kramer and K.
Lee, N. C. R. Makins and R. G. Milner and D. R. Tieger and T. P.
Welch and C. E. Jones and J. Arrington and E.J. Beise and B. Bray and R.W.
Carr, B.W. Filippon},
Title = {Transverse longitudinal asymmetry in the quasi-elastic
3He(e,e') reaction},
Journal = {Physical Review Letters},
Volume = {74},
Number = {5},
Pages = {654-57},
Year = {1995},
Month = {January},
Key = {Hansen95}
}
@article{fds246116,
Author = {al, HGE},
Title = {Transverse Spin Structure of the Nucleon through Target
Single Spin Asymmetry in Semi-Inclusive Deep-Inelastic
$(e,e^\prime \pi^\pm)$ Reaction at Jefferson
Lab},
Journal = {Euro. Phys. J. Plus},
Volume = {126},
Number = {1},
Pages = {2},
Year = {2011},
ISSN = {2190-5444},
url = {http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000290305900013&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=47d3190e77e5a3a53558812f597b0b92},
Abstract = {Jefferson Lab (JLab) 12 GeV energy upgrade provides a golden
opportunity to perform precision studies of the transverse
spin and transverse-momentum-dependent structure in the
valence quark region for both the proton and the neutron. In
this paper, we focus our discussion on a recently approved
experiment on the neutron as an example of the precision
studies planned at JLab. The new experiment will perform
precision measurements of target Single-Spin Asymmetries
(SSA) from semi-inclusive electroproduction of charged pions
from a 40 cm long transversely polarized He target in
deep-inelastic-scattering kinematics using 11 and 8.8 GeV
electron beams. This new coincidence experiment in Hall A
will employ a newly proposed solenoid spectrometer (SoLID).
The large acceptance spectrometer and the high polarized
luminosity will provide precise 4D (x, z, P and Q ) data on
the Collins, Sivers, and pretzelosity asymmetries for the
neutron through the azimuthal angular dependence. The full
2π azimuthal angular coverage in the lab is essential in
controlling the systematic uncertainties. The results from
this experiment, when combined with the proton Collins
asymmetry measurement and the Collins fragmentation function
determined from the e e collision data, will allow for a
quark flavor separation in order to achieve a determination
of the tensor charge of the d quark to a 10% accuracy. The
extracted Sivers and pretzelosity asymmetries will provide
important information to understand the correlations between
the quark orbital angular momentum and the nucleon spin and
between the quark spin and nucleon spin. © Società
Italiana di Fisica / Springer-Verlag 2011. 3 2 + -
T},
Doi = {10.1140/epjp/i2011-11002-4},
Key = {fds246116}
}
@article{fds246089,
Author = {Hansen, JO and Titko, MA and Deschepper, D and Dodson, G and Donnelly,
TW and Ent, KDR and Farkhondeh, M and Korsch, W and Kramer, LH and Lee, K and Makins, NCR and Milner, RG and Tieger, DR and Welch, TP and Jones, CE and Arrington, J and Beise, EJ and Bray, B and Carr, RW and Filippone, BW and Gao, H and Lung, A and McKeown, RD and Mueller, B and Pitt, ML and Schulze,
RW and Sauer, PU and Candell, E and Napolitano, J and Tripp, C and Wojtsekhowski, BB and Lorenzon, W},
Title = {Transverse-longitudinal asymmetry in the quasielastic
He→3(e→,e′) reaction},
Journal = {Physical Review Letters},
Volume = {74},
Number = {5},
Pages = {654-657},
Publisher = {American Physical Society (APS)},
Year = {1995},
Month = {January},
url = {http://dx.doi.org/10.1103/PhysRevLett.74.654},
Abstract = {The transverse-longitudinal asymmetry ATL′ in
He→3(e→,e′) quasielastic scattering at momentum
transfer Q2=0.14 (GeV/c)2 has been measured to be 1.52 ±
0.55(stat) ± 0.15(syst)%. The plane wave impulse
approximation (PWIA) prediction for this measurement ranges
from 2.1% to 2.9%, where the variation is due to uncertainty
in the initial state wave function, nucleon form factors,
and off-shell prescription. The data may suggest a
suppression with respect to the PWIA, which has also been
observed for the unpolarized longitudinal response function.
© 1995 The American Physical Society.},
Doi = {10.1103/PhysRevLett.74.654},
Key = {fds246089}
}
@article{fds246109,
Author = {Anselmino, M and Avakian, H and Boer, D and Bradamante, F and Burkardt,
M and Chen, JP and Cisbani, E and Contalbrigo, M and Crabb, D and Dutta, D and al, E},
Title = {Transverse-momentum-dependent parton distribution/fragmentation
functions at an electron-ion collider},
Journal = {The European Physical Journal A},
Volume = {47},
Number = {3},
Pages = {35},
Publisher = {Springer Nature},
Year = {2011},
ISSN = {1434-6001},
url = {http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000288552100006&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=47d3190e77e5a3a53558812f597b0b92},
Abstract = {We present a summary of a recent workshop held at Duke
University on Partonic Transverse Momentum in Hadrons: Quark
Spin-Orbit Correlations and Quark-Gluon Interactions. The
transversemomentum- dependent parton distribution functions
(TMDs), parton-to-hadron fragmentation functions, and
multi-parton correlation functions, were discussed
extensively at the Duke workshop. In this paper, we
summarize first the theoretical issues concerning the study
of partonic structure of hadrons at a future electron-ion
collider (EIC) with emphasis on the TMDs. We then present
simulation results on experimental studies of TMDs through
measurements of single-spin asymmetries (SSA) from
semi-inclusive deep inelastic scattering (SIDIS) processes
with an EIC, and discuss the requirement of the detector for
SIDIS measurements. The dynamics of parton correlations in
the nucleon is further explored via a study of SSA in D (D)
production at large transverse momenta with the aim of
accessing the unexplored tri-gluon correlation functions.
The workshop participants identified the SSA measurements in
SIDIS as a golden program to study TMDs in both the sea and
valence quark regions and to study the role of gluons, with
the Sivers asymmetry measurements as examples. Such
measurements will lead to major advancement in our
understanding of TMDs in the valence quark region, and more
importantly also allow for the investigation of TMDs in the
unexplored sea quark region along with a study of their
evolution. © The Author(s) 2011.},
Doi = {10.1140/epja/i2011-11035-2},
Key = {fds246109}
}
@article{fds304561,
Author = {Belz, JE and Potterveld, DH and Anthony, P and Arnold, RG and Arrington,
J and Beck, D and Beise, EJ and Bosted, PE and Bulten, HJ and Chapman, MS and Coulter, KP and Dietrich, F and Ent, R and Epstein, M and Filippone, BW and Gao, H and Gearhart, RA and Geesaman, DF and Hansen, JO and Holt, RJ and Jackson, HE and Jones, CE and Keppel, CE and Kinney, ER and Kuhn, S and Lee, K and Lorenzon, W and Lung, A and Makins, NCR and Margaziotis, DJ and McKeown, RD and Meziani, ZE and Milner, RG and Mueller, B and Napolitano, J and Nelson, J and O'Neill, TG and Papavassiliou, V and Petratos, GG and Rock, SE and Segel, RE and Spengos, M and Szalata, ZM and Tao, LH and Van Bibber and K and Van Den Brand and JFJ and White, JL and Zeidman, B},
Title = {Two-body photodisintegration of the deuteron up to 2.8
GeV},
Journal = {Physical Review Letters},
Volume = {74},
Number = {5},
Pages = {646-649},
Publisher = {American Physical Society (APS)},
Year = {1995},
Month = {January},
url = {http://dx.doi.org/10.1103/PhysRevLett.74.646},
Abstract = {Measurements were performed for the photodisintegration
cross section of the deuteron for photon energies from 1.6
to 2.8 GeV and center-of-mass angles from 37°to 90°. The
measured energy dependence of the cross section at
θc.m.=90°is in agreement with the constituent counting
rules. © 1995 The American Physical Society.},
Doi = {10.1103/PhysRevLett.74.646},
Key = {fds304561}
}
@article{fds369112,
Author = {Zhou, J and Khachatryan, V and Gao, H and Gorbaty, S and Higinbotham,
DW},
Title = {Understanding the systematic differences in extractions of
the proton electric form factors at low Q2},
Journal = {Physical Review C},
Volume = {106},
Number = {6},
Year = {2022},
Month = {December},
url = {https://arxiv.org/abs/2110.02557},
Abstract = {Systematic differences exist between values of the proton's
electric form factors in the low-Q2 region extracted by
different experimental and theoretical groups, though they
are all making use of basically the same electron-proton
scattering data. To try to understand the source of these
differences, we make use of the analytically well-behaved
rational (N=1, M=1) function, a predictive function that can
be reasonably used for extrapolations at Q2→0. First, we
test how well this deceptively simple two-parameter function
describes the extremely complex and state-of-the-art
dispersively improved chiral effective field theory
calculations. Second, we carry out a complete re-analysis of
the 34 sets of electron-proton elastic scattering
cross-section data of the Mainz A1 Collaboration with its
unconstrained 31 normalization parameters up to
Q2=0.5(GeV/c)2. We find that subtle shifts in the
normalization parameters can result in relatively large
changes in the extracted physical qualities. In conclusion,
we show that by simply using a well-behaved analytic
function, the apparent discrepancy between recent
form-factor extractions can be resolved.},
Doi = {10.1103/PhysRevC.106.065505},
Key = {fds369112}
}
@article{fds326109,
Author = {Ye, Z and Sato, N and Allada, K and Liu, T and Chen, JP and Gao, H and Kang,
ZB and Prokudin, A and Sun, P and Yuan, F},
Title = {Unveiling the nucleon tensor charge at Jefferson Lab: A
study of the SoLID case},
Journal = {Physics Letters, Section B: Nuclear, Elementary Particle and
High-Energy Physics},
Volume = {767},
Pages = {91-98},
Publisher = {Elsevier BV},
Year = {2017},
Month = {April},
url = {http://dx.doi.org/10.1016/j.physletb.2017.01.046},
Abstract = {Future experiments at the Jefferson Lab 12 GeV upgrade, in
particular, the Solenoidal Large Intensity Device (SoLID),
aim at a very precise data set in the region where the
partonic structure of the nucleon is dominated by the
valence quarks. One of the main goals is to constrain the
quark transversity distributions. We apply recent
theoretical advances of the global QCD extraction of the
transversity distributions to study the impact of future
experimental data from the SoLID experiments. Especially, we
develop a simple strategy based on the Hessian matrix
analysis that allows one to estimate the uncertainties of
the transversity quark distributions and their tensor
charges extracted from SoLID data simulation. We find that
the SoLID measurements with the proton and the effective
neutron targets can improve the precision of the u- and
d-quark transversity distributions up to one order of
magnitude in the range 0.05<x<0.6.},
Doi = {10.1016/j.physletb.2017.01.046},
Key = {fds326109}
}
@article{fds246073,
Author = {Laveissière, G and Degrande, N and Jaminion, S and Jutier, C and Todor,
L and Di Salvo and R and Van Hoorebeke and L and Alexa, LC and Anderson, BD and Aniol, KA and Arundell, K and Audit, G and Auerbach, L and Baker, FT and Baylac, M and Berthot, J and Bertin, PY and Bertozzi, W and Bimbot, L and Boeglin, WU and Brash, EJ and Breton, V and Breuer, H and Burtin, E and Calarco, JR and Cardman, LS and Cavata, C and Chang, CC and Chen, JP and Chudakov, E and Cisbani, E and Dale, DS and De Jager and CW and De Leo and R and Deur, A and D'Hose, N and Dodge, GE and Domingo, JJ and Elouadrhiri, L and Epstein, MB and Ewell, LA and Finn, JM and Fissum, KG and Fonvieille, H and Fournier, G and Frois, B and Frullani, S and Furget, C and Gao, H and Gao,
J and Garibaldi, F and Gasparian, A and Gilad, S and Gilman, R and Glamazdin, A and Glashausser, C and Gomez, J and Gorbenko, V and Grenier, P and Guichon, PAM and Hansen, JO and Holmes, R and Holtrop, M and Howell, C and Huber, GM and Hyde, CE and Incerti, S and Iodice, M and Jardillier, J and Jones, MK and Kahl, W and Kamalov, S and Kato, S and Katramatou, AT and Kelly, JJ and Kerhoas, S and Ketikyan, A and Khayat,
M and Kino, K and Kox, S and Kramer, LH and Kumar, KS and Kumbartzki, G and Kuss, M and Leone, A and LeRose, JJ and Liang, M and Lindgren, RA and Liyanage, N and Lolos, GJ and Lourie, RW and Madey, R and Maeda, K and Malov, S and Manley, DM and Marchand, C and Marchand, D and Margaziotis,
DJ and Markowitz, P and Marroncle, J},
Title = {Virtual Compton scattering and neutral pion
electroproduction in the resonance region up to the deep
inelastic region at backward angles},
Journal = {Physical Review C - Nuclear Physics},
Volume = {79},
Number = {1},
Publisher = {American Physical Society (APS)},
Year = {2009},
Month = {January},
ISSN = {0556-2813},
url = {http://dx.doi.org/10.1103/PhysRevC.79.015201},
Abstract = {We have made the first measurements of the virtual Compton
scattering (VCS) process via the H(e, e'p)γ exclusive
reaction in the nucleon resonance region, at backward
angles. Results are presented for the W-dependence at fixed
Q2=1 GeV2 and for the Q2 dependence at fixed W near 1.5 GeV.
The VCS data show resonant structures in the first and
second resonance regions. The observed Q2 dependence is
smooth. The measured ratio of H(e, e'p)γ to H(e, e'p)π0
cross sections emphasizes the different sensitivity of these
two reactions to the various nucleon resonances. Finally,
when compared to real Compton scattering (RCS) at high
energy and large angles, our VCS data at the highest W
(1.8-1.9 GeV) show a striking Q2 independence, which may
suggest a transition to a perturbative scattering mechanism
at the quark level. © 2009 The American Physical
Society.},
Doi = {10.1103/PhysRevC.79.015201},
Key = {fds246073}
}
@article{fds246104,
Author = {Fonvieille, H and Laveissière, G and Degrande, N and Jaminion, S and Jutier, C and Todor, L and Di Salvo and R and Van Hoorebeke and L and Alexa,
LC and Anderson, BD and Aniol, KA and Arundell, K and Audit, G and Auerbach, L and Baker, FT and Baylac, M and Berthot, J and Bertin, PY and Bertozzi, W and Bimbot, L and Boeglin, WU and Brash, EJ and Breton, V and Breuer, H and Burtin, E and Calarco, JR and Cardman, LS and Cavata, C and Chang, CC and Chen, JP and Chudakov, E and Cisbani, E and Dale, DS and De
Jager, CW and De Leo and R and Deur, A and D'Hose, N and Dodge, GE and Domingo, JJ and Elouadrhiri, L and Epstein, MB and Ewell, LA and Finn,
JM and Fissum, KG and Fournier, G and Frois, B and Frullani, S and Furget,
C and Gao, H and Gao, J and Garibaldi, F and Gasparian, A and Gilad, S and Gilman, R and Glamazdin, A and Glashausser, C and Gomez, J and Gorbenko,
V and Grenier, P and Guichon, PAM and Hansen, JO and Holmes, R and Holtrop,
M and Howell, C and Huber, GM and Hyde, CE and Incerti, S and Iodice, M and Jardillier, J and Jones, MK and Kahl, W and Kato, S and Katramatou, AT and Kelly, JJ and Kerhoas, S and Ketikyan, A and Khayat, M and Kino, K and Kox,
S and Kramer, LH and Kumar, KS and Kumbartzki, G and Kuss, M and Leone, A and Lerose, JJ and Liang, M and Lindgren, RA and Liyanage, N and Lolos, GJ and Lourie, RW and Madey, R and Maeda, K and Malov, S and Manley, DM and Marchand, C and Marchand, D and Margaziotis, DJ and Markowitz, P and Marroncle, J and Martino, J},
Title = {Virtual Compton scattering and the generalized
polarizabilities of the proton at Q2=0.92 and 1.76
GeV2},
Journal = {Physical Review C - Nuclear Physics},
Volume = {86},
Number = {1},
Pages = {015210},
Publisher = {American Physical Society (APS)},
Year = {2012},
Month = {July},
ISSN = {0556-2813},
url = {http://dx.doi.org/10.1103/PhysRevC.86.015210},
Abstract = {Virtual Compton scattering (VCS) on the proton has been
studied at the Jefferson Laboratory using the exclusive
photon electroproduction reaction ep→epγ. This paper
gives a detailed account of the analysis which has led to
the determination of the structure functions PLL-P TT/ε and
PLT and the electric and magnetic generalized
polarizabilities (GPs) αE(Q2) and βM(Q2) at values of the
four-momentum transfer squared Q2=0.92 and 1.76 GeV2. These
data, together with the results of VCS experiments at lower
momenta, help building a coherent picture of the electric
and magnetic GPs of the proton over the full measured Q2
range and point to their nontrivial behavior. © 2012
American Physical Society.},
Doi = {10.1103/PhysRevC.86.015210},
Key = {fds246104}
}
@article{fds246165,
Author = {H. Gao and al, GLE},
Title = {Virtual Compton Scattering in the Resonance Region Up to the
Deep Inelastic Region at Backward Angles and Momentum
Transfer Squared of Q2=1.0 (GeV/c)2},
Journal = {Physical Review Letters},
Year = {2005},
Key = {fds246165}
}
@article{fds246120,
Author = {H. Gao and al, BAE},
Title = {`Extraction of the Neutron Magnetic Form Factor from
Quasi-Elastic $^{3}\vec{He}(\vec{e},e')$ at $Q^2 = 0.1 -
0.6$ (GeV/c)$^2$},
Journal = {Phys. Rev. C},
Volume = {75},
Number = {3},
Pages = {034003},
Publisher = {American Physical Society (APS)},
Year = {2007},
ISSN = {0556-2813},
url = {http://dx.doi.org/10.1103/PhysRevC.75.034003},
Abstract = {We have measured the transverse asymmetry AT' in the
quasielastic 3He→(e→,e') process with high precision at
Q2 values from 0.1 to 0.6(GeV/c)2. The neutron magnetic form
factor GMn was extracted at Q2 values of 0.1 and 0.2(GeV/c)2
using a nonrelativistic Faddeev calculation which includes
both final-state interactions (FSI) and meson-exchange
currents (MEC). Theoretical uncertainties due to the FSI and
MEC effects were constrained with a precision measurement of
the spin-dependent asymmetry in the threshold region of
3He→(e→,e'). We also extracted the neutron magnetic form
factor GMn at Q2 values of 0.3 to 0.6(GeV/c)2 based on plane
wave impulse approximation calculations. © 2007 The
American Physical Society.},
Doi = {10.1103/PhysRevC.75.034003},
Key = {fds246120}
}
@article{fds246090,
Author = {Gao, H and Holt, RJ and Pandharipande, VR},
Title = {γn → π- p process in 4He and
16O},
Journal = {Physical Review C - Nuclear Physics},
Volume = {54},
Number = {5},
Pages = {2779-2782},
Publisher = {American Physical Society (APS)},
Year = {1996},
Month = {January},
url = {http://dx.doi.org/10.1103/PhysRevC.54.2779},
Abstract = {Nuclear transparencies for the fundamental process γn →
π- p on 4He and 16O have been calculated using nucleon
configurations obtained from realistic ground-state wave
functions by the Monte Carlo method. Comparisons between
nuclear transparency results using nucleon configurations
and the correlated Glauber approximation are made in the
case of (e,e′ p) on 4He and 16O. Furthermore, nuclear
transparencies for the γn → π- p and (e,e′ p)
processes have been calculated including a color
transparency effect.},
Doi = {10.1103/PhysRevC.54.2779},
Key = {fds246090}
}
@article{fds246031,
Author = {Gao, H and Lee, TSH and Marinov, V},
Title = {φ-N bound state},
Journal = {Physical Review C - Nuclear Physics},
Volume = {63},
Number = {2},
Pages = {222011-222013},
Year = {2001},
Month = {January},
url = {http://dx.doi.org/10.1103/PhysRevC.63.022201},
Abstract = {We show that the QCD van der Waals attractive potential is
strong enough to bind a φ meson onto a nucleon inside a
nucleus to form a bound state. The direct experimental
signature for such an exotic state is proposed in the case
of subthreshold φ meson photoproduction from nuclear
targets. The production rate is estimated and such an
experiment is found to be feasible at the Jefferson
Laboratory.},
Doi = {10.1103/PhysRevC.63.022201},
Key = {fds246031}
}
%% Papers Accepted
@article{fds360494,
Author = {H. Gao and Marc Vanderhaeghen},
Title = {The Proton Charge Radius},
Journal = {Review of Modern Physics},
Year = {2021},
Abstract = {Nucleons (protons and neutrons) are the building blocks of
atomic nuclei and are responsible for more than 99\% of the
visible matter in the universe. Despite decades of efforts
in studying its internal structure, there are still a number
of puzzles surrounding the proton such as its spin and
charge radius. Accurate knowledge about the proton charge
radius is not only essential for understanding how quantum
chromodynamics (QCD) works in the non-perturbative region,
but also important for bound state quantum electrodynamics
(QED) calculations of atomic energy levels. It also has an
impact on the Rydberg constant, one of the most precisely
measured fundamental constants in nature. This article
reviews the latest situation concerning the proton charge
radius in light of the new experimental results from both
atomic hydrogen spectroscopy and electron scattering
measurements, with particular focus on the latter. We also
present theoretical backgrounds and recent developments
concerning the determination of the proton charge radius
using different experimental techniques. We discuss upcoming
experiments, and briefly mention the deuteron charge radius
puzzle at the end.},
Key = {fds360494}
}
%% Papers Submitted
@article{fds374871,
Author = {H. Gao},
Title = {Establishing a Residential Liberal Arts College in China:
Duke Kunshan University},
Journal = {A special volume of Daedalus, the Journal of the American
Academy of Arts and Sciences},
Year = {2023},
Key = {fds374871}
}
@article{fds43008,
Author = {Y. Liang et al. (including H. Gao)},
Title = {``Measurement of R = $\sigma_{L}/\sigma_{T}$ and the
Separated Longitudinal and Transverse Structure Functions in
the Nucleon Resonance Region''},
Journal = {nucl-ex/0410027, submitted to Physical Review
C},
Year = {2005},
Key = {fds43008}
}
%% Preprints
@article{fds353620,
Author = {A. Accardi et al. including H. Gao},
Title = {e+@JLab White Paper: An Experimental Program with Positron
Beams at Jefferson Lab},
Journal = {arXiv:2007.15081},
Year = {2020},
url = {https://arxiv.org/abs/2007.15081},
Key = {fds353620}
}
%% Other
@misc{fds347594,
Author = {The SoLID collaboration including H. Gao},
Title = {SoLID (Solenoidal Large Intensity Device) Updated
Preliminary Conceptual Design Report},
Year = {2019},
Month = {November},
Key = {fds347594}
}