Publications of Henry R. Weller :chronological by type listing:
%%
@article{fds249027,
Author = {Wulf, EA and Canon, RS and Gaff, SJ and Kelley, JH and Prior, RM and Schreiber, EC and Spraker, M and Tilley, DR and Weller, HR and Viviani,
M and Kievsky, A and Rosati, S and Schiavilla, R},
Title = {"A New Photodisintegration Threshold Observable in
3He"},
Journal = {Phys. Rev. (Rapid Communications)},
Volume = {C61},
Number = {2},
Pages = {021601(R)},
Year = {1999},
ISSN = {0556-2813},
url = {http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000085298800006&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=47d3190e77e5a3a53558812f597b0b92},
Abstract = {Measurements of the cross section, vector and tensor
analyzing powers, and linear gamma-ray polarization in the
radiative capture reactions D(p,γ)3He and p(d, γ)3He at
c.m. energies in the range 0-53 keV allow the determination
of the reduced matrix elements (RMEs) relevant for these
transitions. From these RMEs the value of the integral which
determines the Gerasimov-Drell-Hearn sum rule for 3He is
obtained in the threshold region, corresponding to two-body
breakup, and compared with the results of an ab initio
microscopic three-body model calculation. The theoretical
predictions for the value of this integral based on a
"nucleons-only" assumption are an order of magnitude smaller
than experiment. The discrepancy is reduced to about a
factor of 2 when two-body currents are taken into account.
This factor of 2 is due to an almost exact cancellation
between the dominant E1 RMEs in the theoretical calculation.
The excess E1 strength observed experimentally could provide
useful insights into the nuclear interaction at low
energies.},
Key = {fds249027}
}
@article{fds249044,
Author = {Wulf, EA and Godwin, MA and Guillemette, JF and Laymon, CM and Prior,
RM and Rice, BJ and Spraker, M and Tilley, DR and Weller,
HR},
Title = {"Astrophysical S-Factors for the 9Be(p,ƒ×)10B
Reaction,"},
Journal = {Phys. Rev},
Volume = {C58},
Number = {1},
Pages = {517-523},
Publisher = {American Physical Society (APS)},
Year = {1998},
url = {http://dx.doi.org/10.1103/PhysRevC.58.517},
Abstract = {Analyzing powers for the [Formula Presented] reaction were
measured by stopping a 100 keV polarized proton beam in a
[Formula Presented] target. The measured vector analyzing
power is [Formula Presented] for capture to the ground
state, with smaller values at [Formula Presented] for the
first three excited states. Astrophysical [Formula
Presented] factors were calculated for each of the final
states using a direct capture plus resonance model which fit
both the present analyzing power data and the previously
reported cross section data. The calculated [Formula
Presented] factors at [Formula Presented] for capture to the
ground state and first three excited states were 0.25, 0.34,
0.27, and 0.10 keV b, respectively, which are considerably
smaller than previously reported. The observed analyzing
powers are explained, within experimental uncertainty, as
arising from the interference of the [Formula Presented]
direct capture amplitude with the tails of nearby [Formula
Presented]-wave and [Formula Presented]-wave resonances. ©
1998 The American Physical Society.},
Doi = {10.1103/PhysRevC.58.517},
Key = {fds249044}
}
@article{fds249038,
Author = {al, MHE},
Title = {"Coherent Bremsstrahlung in the Ą + p system at 50
MeV/nucleon"},
Journal = {Phys. Rev. Lett.},
Volume = {85 (7)},
Number = {7},
Pages = {1404},
Year = {2000},
url = {http://dx.doi.org/10.1103/PhysRevLett.85.1404},
Abstract = {Photons associated with coherent bremsstrahlung in the α +
p reaction were studied. Photon-particle coincidences
enabled to extend the coherent bremsstrahlung spectrum to
photon energies as low as 10 MeV. Data were compared with
model calculations in which coherent bremsstrahlung and
direct capture are treated consistently as the same
process.},
Doi = {10.1103/PhysRevLett.85.1404},
Key = {fds249038}
}
@article{fds249035,
Author = {Nelson, SO and Wulf, EA and Kelley, JH and Weller,
HR},
Title = {"Evaluations of Thermonuclear Proton Capture Reaction Rates
for 2H, 7Li, 9Be and 11B"},
Journal = {Nucl. Phys.},
Volume = {A679/2},
Number = {2},
Pages = {199},
Publisher = {Elsevier BV},
Year = {2000},
ISSN = {0375-9474},
url = {http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000165513200006&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=47d3190e77e5a3a53558812f597b0b92},
Abstract = {Recent measurements and analyses of proton induced
radiative-capture reactions in the vicinity of Ep=100 keV
performed at the Triangle Universities Nuclear Laboratory
are used to calculate the thermonuclear reaction rates of
relevance in astrophysical plasmas for the reactions: D(p,
γ )3 He, 7 Li(p, γ0,1 )8 Be, 9 Be(p, γ0,1,2,3 )10 B, and
11 B(p, γ0,1 )12 C. Higher energy data from previous
measurements were included when possible. The
Maxwellian-averaged reaction rates, obtained using numerical
integration techniques, are presented in tabular form as a
function of temperature. Capture to the ground and excited
states are treated separately, thus allowing the
determination of inverse reaction rates for specified target
states. The high temperature cut-offs of the reaction rate
calculations are discussed. The results are compared to
those presented in the recent NACRE compilation, where
appropriate, and new analytical approximations for the total
reaction rates are presented in a standard form. © 2000
Elsevier Science B.V.},
Doi = {10.1016/S0375-9474(00)00341-9},
Key = {fds249035}
}
@article{fds4828,
Author = {H.R. Weller},
Title = {"Past, Present, and Future Studies of the GDH Sum Rule for D
and 3He at TUNL"},
Booktitle = {Proceedings of the Symposium on the GDH Sum
Rule},
Publisher = {World Scientific Publishing Co., Sinagpore},
Editor = {Drechsel and Tiator},
Year = {2001},
Key = {fds4828}
}
@article{fds249037,
Author = {al, JHKE},
Title = {"The 11B(p,ƒ×)12C Reaction below 100 keV"},
Journal = {Phys. Rev.},
Volume = {C62},
Pages = {025803},
Year = {2000},
Key = {fds249037}
}
@article{fds249040,
Author = {Spraker, M and Prior, RM and Godwin, MA and Rice, BJ and Wulf, EA and Kelley, JH and Tilley, DR and Weller, HR},
Title = {"The Slope of the Astrophysical S-Factor for the
7Li(p,ƒ×)8Be Reaction"},
Journal = {Phys. Rev.},
Volume = {C61},
Number = {1},
Pages = {15802},
Year = {1999},
ISSN = {0556-2813},
url = {http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000084778800042&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=47d3190e77e5a3a53558812f597b0b92},
Abstract = {Polarized proton beams of 80 and 60 keV, and a biased target
have been used to determine the slope of the astrophysical S
factor for the 7Li(p,γ)8Be reaction from direct
measurements at proton energies from 40 to 100 keV for
capture to both the ground and the first excited states of
8Be. The results indicate a negative slope for both cases.
Vector analyzing power measurements at 90° were also
obtained for proton energies from 40 to 80 keV. It is shown
that the negative slope can be accounted for by considering
the effect of the subthreshold resonance state at 16.6 MeV
if the capture into this weakly bound, subthreshold state
occurs at an effective radius of about 46 fm. The effect of
this state increases the extrapolated value of the S factor
at Ep=0 from the previous value of 0.3 keV b to the present
value of 0.50 keV b.},
Key = {fds249040}
}
@article{fds249015,
Author = {Gaff, SJ and Canon, RS and Kelley, JH and Nelson, SO and Sabourov, K and Schreiber, EC and Tilley, DR and Weller, HR and Wulf,
EA},
Title = {"The Spin-Parity of the 7.478 MeV State of 10B from the
9Be(p,ƒ×)10B Reaction,"},
Journal = {Physical Review C},
Volume = {C59},
Number = {6},
Pages = {3425},
Publisher = {American Physical Society},
Year = {1999},
Month = {June},
url = {http:/aps.org},
Key = {fds249015}
}
@article{fds4830,
Author = {H.R. Weller},
Title = {"Threshold Contribution to the GDH Sum Rule in
3He,"},
Booktitle = {Proceedings of the 16th International IUPAP Conference on
Few-Body Problems in Physics},
Publisher = {Elsevier, Amsterdam},
Editor = {Chung, Ho and Lee and Yang},
Year = {2001},
Key = {fds4830}
}
@booklet{Langenbrunner88,
Author = {Langenbrunner, JL and Feldman, G and Weller, HR and Tilley, DR and Wachter, B and Mertelmeier, T and Hofmann, HM},
Title = {2H(d},
Journal = {Physical review. C, Nuclear physics},
Volume = {38},
Number = {1},
Pages = {565-568},
Publisher = {American Physical Society (APS)},
Year = {1988},
Month = {July},
ISSN = {0556-2813},
url = {http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:A1988P401200064&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=47d3190e77e5a3a53558812f597b0b92},
Doi = {10.1103/physrevc.38.565},
Key = {Langenbrunner88}
}
@booklet{Whitton93,
Author = {Whitton, RM and Weller, HR and Hayward, E and Dodge, WR and Kuhn,
SE},
Title = {2H(d, gamma )4He polarization observables at 20, 30, and 50
MeV.},
Journal = {Physical review. C, Nuclear physics},
Volume = {48},
Number = {5},
Pages = {2355-2365},
Publisher = {American Physical Society (APS)},
Year = {1993},
Month = {November},
ISSN = {0556-2813},
url = {http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:A1993MH13600033&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=47d3190e77e5a3a53558812f597b0b92},
Doi = {10.1103/physrevc.48.2355},
Key = {Whitton93}
}
@booklet{Wagenaar85,
Author = {Wagenaar, DJ and Roberson, NR and Weller, HR and Tilley,
DR},
Title = {3H(p},
Journal = {Physical review. C, Nuclear physics},
Volume = {32},
Number = {6},
Pages = {2155-2157},
Publisher = {American Physical Society (APS)},
Year = {1985},
Month = {December},
ISSN = {0556-2813},
url = {http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:A1985AVQ2700042&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=47d3190e77e5a3a53558812f597b0b92},
Doi = {10.1103/physrevc.32.2155},
Key = {Wagenaar85}
}
@article{fds249026,
Author = {Canon, RS and Nelson, SO and Sabourov, K and Wulf, E and Weller,
HR},
Title = {3H(p,gamma)4He reaction below Ep=80 keV},
Journal = {Physical Review C},
Volume = {65},
Number = {044008},
Pages = {(7)},
Publisher = {American Physical Society},
Year = {2002},
Month = {April},
url = {http://www.aps.org/},
Abstract = {www.aps.org},
Key = {fds249026}
}
@booklet{Weller86,
Author = {Weller, HR and Colby, P and Langenbrunner, J and Huang, ZD and Tilley,
DR and Santos, FD and Arriaga, A and Eiró, AM},
Title = {4He D-state effects in the 2H(d, gamma )4He reaction at low
energies.},
Journal = {Physical review. C, Nuclear physics},
Volume = {34},
Number = {1},
Pages = {32-37},
Publisher = {American Physical Society (APS)},
Year = {1986},
Month = {July},
ISSN = {0556-2813},
url = {http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:A1986D218800004&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=47d3190e77e5a3a53558812f597b0b92},
Abstract = {The H2(d,) 4He cross section was measured for deuteron
laboratory energies between 0.7 and 4.5 MeV. Angular
distributions were obtained at laboratory energies of
Ed=1.38, 2.05, 9.6, and 15.0 MeV. These data indicate that
the D state of He4, which can be populated via S-wave
capture in this reaction, has a large effect on the energy
and angle dependence of this low energy capture cross
section. The data are shown to imply an asymptotic D-to-S
state ratio =-0.2 0.05. The implication of this observation
for the absolute cross section below 1.0 MeV is discussed.
© 1986 The American Physical Society.},
Doi = {10.1103/physrevc.34.32},
Key = {Weller86}
}
@booklet{Mcbroom82,
Author = {McBroom, RC and Weller, HR and Roberson, NR and Tilley,
DR},
Title = {??H3(??p,??γ)??He4reaction
below??Ep=30MeV},
Journal = {Physical Review C},
Volume = {25},
Number = {3},
Pages = {1644-1648},
Publisher = {American Physical Society (APS)},
Year = {1982},
Month = {March},
ISSN = {0556-2813},
url = {http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:A1982NH88800053&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=47d3190e77e5a3a53558812f597b0b92},
Doi = {10.1103/physrevc.25.1644},
Key = {Mcbroom82}
}
@booklet{Godwin97,
Author = {Godwin, MA and Laymon, CM and Prior, RM and Tilley, DR and Weller,
HR},
Title = {??7Li(p→,γ)8Bereaction
at??Ep=80–0 keV},
Journal = {Physical Review C},
Volume = {56},
Number = {3},
Pages = {1605-1612},
Publisher = {American Physical Society (APS)},
Year = {1997},
Month = {September},
ISSN = {0556-2813},
url = {http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:A1997XW37900047&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=47d3190e77e5a3a53558812f597b0b92},
Doi = {10.1103/physrevc.56.1605},
Key = {Godwin97}
}
@booklet{Wagenaar85a,
Author = {Wagenaar, DJ and Roberson, NR and Weller, HR and Tilley,
DR},
Title = {A bismuth germanate gamma-ray spectrometer with a plastic
anticoincidence shield},
Journal = {Nuclear Inst. and Methods in Physics Research,
A},
Volume = {234},
Number = {1},
Pages = {109-115},
Publisher = {Elsevier BV},
Year = {1985},
Month = {January},
ISSN = {0168-9002},
url = {http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:A1985AET3200014&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=47d3190e77e5a3a53558812f597b0b92},
Abstract = {Response functions to photons in the energy range of
4.4-26.6 MeV have been obtained for a 7.6 × 7.6 cm BGO
scintillator surrounded by a 5.1 cm thick well-type
anticoincident shield. An AmBe source and various (p, γ)
reactions provided the gamma-rays. The energy resolutions
obtained varied from 8.4% (fwhm) at Eγ = 4.4 MeV to 6.6% at
21.0 MeV. The efficiency of the system has been determined
by using the 12C(p, γ)13N reaction near Ep(Eγ) = 14.24
(15.07) MeV. In addition, the response function has been
obtained for 18 MeV gamma-rays from the 40Ca(n, γ)41Ca
reaction using 10 MeV neutrons produced via the 2H(d, n)3He
reaction. © 1985.},
Doi = {10.1016/0168-9002(85)90814-9},
Key = {Wagenaar85a}
}
@article{fds4829,
Author = {H.R. Weller},
Title = {A Free-Electron Laser Generated Gamma-Ray Beam for Nuclear
Physics},
Booktitle = {Proceedings of the Symposium on Fundamental Issues in
Elementary Matter},
Publisher = {EP Systems, Debrecen, Hungary},
Editor = {W. Greiner},
Year = {2001},
Key = {fds4829}
}
@booklet{Prior95,
Author = {Prior, RM and Chasteler, RM and Weller, HR},
Title = {A polarimeter for low-energy protons},
Journal = {Nuclear Inst. and Methods in Physics Research,
A},
Volume = {355},
Number = {2-3},
Pages = {439-442},
Publisher = {Elsevier BV},
Year = {1995},
Month = {February},
ISSN = {0168-9002},
url = {http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:A1995QJ70600030&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=47d3190e77e5a3a53558812f597b0b92},
Abstract = {A polarimeter is described for proton beam energies below
100 keV using the 7Li(p, γ)8 Be reaction. Measurements
indicate an analyzing power near 0.4 with yields that would
allow a 10% measurement of beam polarization in 1 h for
sources producing beam currents on the order of 30 μA. ©
1995.},
Doi = {10.1016/0168-9002(94)01017-X},
Key = {Prior95}
}
@booklet{Chasteler94a,
Author = {Chasteler, RM and Weller, HR},
Title = {A portable 17.3 MeV gamma-ray source},
Journal = {Nuclear Inst. and Methods in Physics Research,
A},
Volume = {344},
Number = {2},
Pages = {429-431},
Publisher = {Elsevier BV},
Year = {1994},
Month = {May},
ISSN = {0168-9002},
url = {http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:A1994NJ92900021&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=47d3190e77e5a3a53558812f597b0b92},
Abstract = {The 7Li(p, γ)8Be reaction at low beam energies, ≤ 100
keV, is considered for use as a high energy gamma-ray
source. Production rates indicate that this reaction would
yield a reasonable intensity of 17.3 and 14.3 MeV gamma rays
with inexpensive and readily available proton ion sources.
© 1994.},
Doi = {10.1016/0168-9002(94)90093-0},
Key = {Chasteler94a}
}
@article{fds16764,
Author = {H.R. Weller},
Title = {A Study of the GDH Sum Rule Integrand for the Deuteron at
TUNL and HIGS Near Photdisintegration Threshold},
Series = {2003 by World Scientific Publishing Co. Pte.
Ltd.},
Pages = {173},
Booktitle = {Proceedings of the Second International Symposium on the
Gerasimov-Drell-Hearn Sum Rule and the Spin Structure of the
Deuteron},
Publisher = {World Scientific},
Editor = {M. Anghinolfi and M. Battagleiri and R. De
Vita},
Year = {2003},
Key = {fds16764}
}
@article{fds248886,
Author = {Weissman, L and Gai, M and Breskin, A and Chechik, R and Dangendorf, V and Tittelmeier, K and Weller, HR},
Title = {Amplification and scintillation properties of oxygen-rich
gas mixtures for optical-TPC applications},
Journal = {Journal of Instrumentation},
Volume = {1},
Number = {1},
Pages = {1-17},
Publisher = {IOP Publishing},
Year = {2006},
Month = {Spring},
ISSN = {1748-0221},
url = {http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000202974900003&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=47d3190e77e5a3a53558812f597b0b92},
Abstract = {We studied electron amplification and light emission from
avalanches in oxygen-containing gas mixtures. The mixtures
investigated in this work included, among others, CO2 and
N2O mixed with Triethylamine (TEA) or N2. Double-Step
Parallel Gap (DSPG) multipliers and THick Gas Electron
Multipliers (THGEM) were investigated. High light yields
were measured from CO2+N2 and CO2+TEA, though with different
emission spectra. We observed the characteristic wave-length
emission of N 2 and of TEA and used a polymer wave-length
shifter to convert TEA UV-light into the visible spectrum.
The results of these measurements indicate the applicability
of optical recording of ionizing tracks in a TPC
target-detector designed to study the cross-sections of the
16O(γ,α)12C reaction, a central problem in nuclear
astrophysics.},
Doi = {10.1088/1748-0221/1/05/p05002},
Key = {fds248886}
}
@article{fds248881,
Author = {Ahmed, M and Weller, HR and al, E},
Title = {An Indirect Determination of the Gerasimov-Drell-Hearn (GDH)
Sum Rule for the Deuteron at Low Energies},
Journal = {Bulletin of the APS},
Volume = {52},
Number = {3},
Pages = {102},
Publisher = {The American Physical Society},
Year = {2007},
Key = {fds248881}
}
@article{fds249024,
Author = {Nelson, SO and Ahmed, MW and Perdue, BA and Sabourov, K and Sabourov, A and Tonchev, AP and Prior, RM and Spraker, M and Weller,
HR},
Title = {Analyzing Power Measurements for the 14N(p,g)15O Reaction at
Astrophysically Relevant Energies},
Journal = {Physical Review C},
Volume = {C68},
Pages = {065804},
Publisher = {APS},
Year = {2003},
Month = {December},
url = {http://aps.org/},
Key = {fds249024}
}
@article{fds28963,
Author = {S. O. Nelson and M. W. Ahmed and B. A. Perdue and K. Sabourov and A. L.
Sabourov and A. P. Tonchev and R. M. Prior and M. Spraker and H. R.
Weller},
Title = {Analyzing Power Measurment for the 14N(p,gamma)15O Reaction
at Astrophysically Relevant Eenrgies},
Journal = {Physical Review},
Volume = {C68},
Pages = {065804},
Publisher = {American Physical Society},
Year = {2003},
url = {http://aps.org},
Key = {fds28963}
}
@booklet{Weller92,
Author = {Weller, HR and Langenbrunner, J and Chasteler, RM and Tomusiak, EL and Asai, J and Seyler, RG and Lehman, DR},
Title = {Angular distribution coefficients for (γ, X) reactions with
linearly polarized photons},
Journal = {Atomic Data and Nuclear Data Tables},
Volume = {50},
Number = {1},
Pages = {29-135},
Publisher = {Elsevier BV},
Year = {1992},
Month = {January},
ISSN = {0092-640X},
url = {http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:A1992HA43800002&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=47d3190e77e5a3a53558812f597b0b92},
Abstract = {The formalism for a linearly polarized γ-ray capture
particle-out reaction is presented. The form given allows
one to generate the expressions for the cross section as a
function of the detected particle angle, θ, and the
photon-polarization angle, φ, in terms of the reduced
transition matrix elements. Tables, which allow the reader
to construct these expressions, are presented for target
spins and parities of 0+, 1 2+, 1+, and 3 2+; outgoing
particle spins and parities of 0+, 1 2+, and 1+; residual
nuclei spins and parities of 0+, 1 2±, 1+, and 3 2±; and
multipolarities E1, M1, and E2. The tables are also labeled
with equivalent Jπ combinations obtained by reversing the
parities of any two of the three particles, which lead to
the same expression for the cross section. ©
1992.},
Doi = {10.1016/0092-640X(92)90024-C},
Key = {Weller92}
}
@booklet{Weller94,
Author = {Weller, HR and Chasteler, RM and Marks, BS and Seyler, RG and Lehman,
DR},
Title = {Angular Distribution Coefficients for (γ,X) Reactions with
Circularly Polarized Photons and Polarized Targets and a
Correction to Previous Tables},
Journal = {Atomic Data and Nuclear Data Tables},
Volume = {58},
Number = {2},
Pages = {219-225},
Publisher = {Elsevier BV},
Year = {1994},
Month = {November},
ISSN = {0092-640X},
url = {http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:A1994PP87800003&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=47d3190e77e5a3a53558812f597b0b92},
Doi = {10.1006/adnd.1994.1028},
Key = {Weller94}
}
@article{fds249041,
Author = {Wulf, EA and Guillemette, J and Seyler, RG and Weller,
HR},
Title = {Angular distribution coefficients for γ-ray polarizations
produced in polarized capture reactions},
Journal = {Atomic Data and Nuclear Data Tables},
Volume = {72},
Number = {1},
Pages = {21-32},
Publisher = {Elsevier BV},
Year = {1999},
Month = {January},
ISSN = {0092-640X},
url = {http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000081317600002&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=47d3190e77e5a3a53558812f597b0b92},
Doi = {10.1006/adnd.1999.0807},
Key = {fds249041}
}
@booklet{Weller94a,
Author = {WELLER, HR and LANGENBRUNNER, J and CHASTELER, RM and TOMUSIAK, EL and ASAI, J and SEYLER, RG and LEHMAN, DR},
Title = {ANGULAR-DISTRIBUTION COEFFICIENTS FOR (GAMMA,CHI) REACTIONS
WITH LINEARLY POLARIZED PHOTONS (VOL 50,
1992)},
Journal = {ATOMIC DATA AND NUCLEAR DATA TABLES},
Volume = {58},
Number = {2},
Pages = {317-318},
Year = {1994},
ISSN = {0092-640X},
url = {http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:A1994PP87800008&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=47d3190e77e5a3a53558812f597b0b92},
Key = {Weller94a}
}
@article{fds248887,
Author = {Parpottas, Y and Ahmed, MW and Blackston, MA and Perdue, BA and Prior,
RM and Sabourov, A and Spraker, MC and Weller, HR},
Title = {Astrophysical S factor for the B11(d,n)C12 reaction below
135 keV},
Journal = {Physical Review C - Nuclear Physics},
Volume = {74},
Number = {1},
Pages = {015804},
Publisher = {American Physical Society (APS)},
Year = {2006},
Month = {Fall},
ISSN = {0556-2813},
url = {http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000239511600055&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=47d3190e77e5a3a53558812f597b0b92},
Abstract = {The B11(d,n)C12 reaction was studied using deuteron beams of
120-160 keV to determine the absolute astrophysical S
factors and cross sections for the n0 and n1 neutron groups.
The slopes of the S factors are consistent with zero for
both the n0 and n1 cases. The measured S factor for the sum
of both neutron groups at c.m. energies below 135 keV is
S=3180±480 keV b. A DWBA calculation is able to reproduce
the ratio of the S factors found here to those obtained in a
recent study of the Li7(d,n0,1)Be8 reaction. © 2006 The
American Physical Society.},
Doi = {10.1103/PhysRevC.74.015804},
Key = {fds248887}
}
@article{fds248901,
Author = {Sabourov, A and Ahmed, MW and Blackston, MA and Crowell, AS and Howell,
CR and Perdue, BA and Sabourov, K and Tonchev, A and Weller, HR and Prior,
RM and Spraker, MC},
Title = {Astrophysical S factor for the Li7(d,n0)Be8 and Li7(d,n1)Be8
reactions},
Journal = {Physical Review C - Nuclear Physics},
Volume = {73},
Number = {1},
Publisher = {American Physical Society (APS)},
Year = {2006},
Month = {January},
url = {http://aps.org},
Abstract = {The absolute astrophysical S factor and cross section for
the Li7(d,n0)Be8 and Li7(d,n1)Be8 reactions have been
determined using deuteron beams with energies between 45 and
80 keV. The slope of the S factor is consistent with zero in
the n0 case but is slightly negative in the n1 case. The S
factor for the sum of both neutron groups at c.m. energies
below 70 keV is S(E)=5400(±1500)-37(±21)E keV b, where E
is the c.m. energy in keV. © 2006 The American Physical
Society.},
Doi = {10.1103/PhysRevC.73.015801},
Key = {fds248901}
}
@article{fds47049,
Author = {A. Sabourov et al. (including H.R. Weller)},
Title = {Astrophysical S-factor for the 7Li(d,n0)8Be and 7Li(d,n1)8Be
reactions},
Journal = {Physical Review C},
Volume = {73},
Pages = {015801},
Publisher = {The American Physical Society},
Year = {2006},
Month = {Winter},
url = {http://www.aps.org},
Key = {fds47049}
}
@article{fds28965,
Author = {M. W. Ahmed and G. Feldman and V.N. Litvinenko and S.O. Nelson and B.E.
Norum, B. Perdue and I.V. Pinayev and B. Sawatzky and A. P. Tonchev and Y. Wu and H. R. Weller},
Title = {Background Reduction in FEL-Generated Gamma-Ray Beam
Experiments using the Giant High-Peak Power
Pulses},
Journal = {Nucl. Instrum. and Methods},
Volume = {A516},
Pages = {440},
Year = {2004},
Key = {fds28965}
}
@article{fds249016,
Author = {Ahmed, MW and Feldman, G and Litvinenko, VN and Nelson, SO and Norum,
BE and Perdue, B and Pinayev, IV and Sawatzky, B and Tonchev, AP and Wu, Y and Weller, HR},
Title = {Background reduction in FEL-generated gamma-ray beam
experiments using giant high-peak power pulses},
Journal = {Nuclear Instruments and Methods in Physics Research
A},
Volume = {516},
Number = {2-3},
Pages = {440-444},
Publisher = {Elsevier},
Year = {2003},
ISSN = {0168-9002},
url = {http://www.sciencedirect.com},
Abstract = {A new method to eliminate beam-uncorrelated background in
photonuclear experiments has been developed at the High
Intensity Gamma-Ray Source (HIγS). Background suppression
of over 3 orders-of-magnitude has been achieved by using a
gain modulation technique to generate giant high-peak power
(GHPP) pulses in the OK-4/ Duke storage ring FEL. The time
structure of these laser pulses was tuned so that their
duration was ∼100 μs, repeated every 50 ms. The
associated FEL photons were backscattered from 780 MeV
electrons to produce linearly polarized 40 MeV γ-rays
having the same time structure as the FEL pulses. As an
initial test of the technique, a nearly background-free
measurement of the analyzing power in the Compton scattering
reaction 16O(γ→,γ)16O was performed. © 2003 Elsevier
B.V. All rights reserved.},
Doi = {10.1016/j.nima.2003.08.166},
Key = {fds249016}
}
@article{fds248880,
Author = {Young, A and Weller, HR and al, E},
Title = {Calibration and Performance of the UConn-Yale_PTB-Weizmann-UCL-TUNL
O-TOC},
Journal = {Bulletin of the American Physical Society},
Volume = {52},
Number = {9},
Pages = {70},
Publisher = {The American Physical Society},
Year = {2007},
Key = {fds248880}
}
@booklet{Weller80,
Author = {Weller, HR and Roberson, NR},
Title = {Capture reactions with protons, neutrons, and alpha
particles},
Journal = {Reviews of Modern Physics},
Volume = {52},
Number = {4},
Pages = {699-724},
Publisher = {American Physical Society (APS)},
Year = {1980},
Month = {January},
ISSN = {0034-6861},
url = {http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:A1980KU76500003&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=47d3190e77e5a3a53558812f597b0b92},
Abstract = {A review of recent capture experiments which discusses
polarized proton, polarized neutron, and alpha particle
capture reactions is presented. The giant dipole resonance
region is examined chiefly in terms of the information which
can be obtained from angular distribution measurements.
Experimental results regarding the relative transition
matrix elements and their phases are shown to be quite well
accounted for by the direct-semidirect reaction theory. Some
of the new information obtained from such experiments in the
case of the three and four-body problems is described. The
utility of polarized capture for the study of M1 and E2
strength is exhibited by examples. Several cases are shown
in which the E2 strength observed in light nuclei via p
capture is accounted for by a purely direct E2 mechanism.
The virtues of polarized neutron capture studies are
explored, and the results of the first experiments are
described. Alpha particle capture is compared with p and n
capture. Fundamental differences in the reaction processes
are described which can account for the relatively small a1
coefficients observed in n versus p capture and lack of
E1-E2 coherence observed in several α-capture experiments.
© 1980 American Physical Society.},
Doi = {10.1103/RevModPhys.52.699},
Key = {Weller80}
}
@booklet{Weller95,
Author = {Weller, HR and Chasteler, RM},
Title = {Comment on the7Li(p, γ)8Be reaction
at energies of astrophysical interest},
Journal = {Zeitschrift für Physik A Hadrons and Nuclei},
Volume = {352},
Number = {4},
Pages = {353-354},
Publisher = {Springer Nature America, Inc},
Year = {1995},
Month = {December},
ISSN = {0939-7922},
url = {http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:A1995RY37100002&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=47d3190e77e5a3a53558812f597b0b92},
Abstract = {The results of two recent publication are reconsidered.
These papers argue that the p-wave effects seen in the7Li(p,
γ)8Be reaction below Ep=80 keV can be accounted for by
considering the low-energy tail of the p-wave resonance at
Ep=441 keV. It is shown that the cross section and analyzing
power data require an order-of-magnitude more p-wave
strength when considered together. © 1995
Springer-Verlag.},
Doi = {10.1007/BF01299749},
Key = {Weller95}
}
@article{fds249006,
Author = {Weller, MMFTCLASCIHR},
Title = {Complete Angular distribution Measurements of Two-Body
Deuteron Photodisintegration between 0.5 and 3
GeV},
Journal = {Physical Review},
Volume = {C70},
Number = {1},
Pages = {014005},
Publisher = {The American Physical Society},
Year = {2004},
ISSN = {0556-2813},
url = {http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000223590600017&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=47d3190e77e5a3a53558812f597b0b92},
Abstract = {Nearly complete angular distributions of the two-body
deuteron photodisintegration differential cross section have
been measured using the CEBAF Large Acceptance Spectrometer
detector and the tagged photon beam at the Thomas Jefferson
National Accelerator Facility. The data cover photon
energies between 0.5 and 3.0 GeV and center-of-mass proton
scattering angles 10°-160°. The data show a persistent
forward-backward angle asymmetry over the explored energy
range, and are well described by the nonperturbative quark
gluon string model.},
Doi = {10.1103/PhysRevC.70.014005},
Key = {fds249006}
}
@article{fds43019,
Author = {B. A. Perdue and M. W. Ahmed and A. P. Tonchev and H. R. Weller and G.
Feldman, V. N. Litvinenko and I. V. Pinayev and Be. E. Norm and R. M.
Prior and M. C. Spraker and B. D Sawatzky},
Title = {Compton Scattering of Polarized gamma rays by 16O for
Eg=25-40 MeV},
Journal = {Physical Review C},
Volume = {70},
Pages = {064305},
Publisher = {American Physical Society},
Year = {2004},
Month = {December},
url = {http://aps.org},
Abstract = {www.aps.org},
Key = {fds43019}
}
@article{fds248997,
Author = {Perdue, BA and Ahmed, MW and Tonchev, AP and Weller, HR and Feldman, G and Litvinenko, VN and Pinayev, IV and Norum, BE and Prior, RM and Spraker,
MC and Sawatzky, BD},
Title = {Compton scattering of polarized γ rays by16O for
E γ=25-40 MeV},
Journal = {Physical Review C - Nuclear Physics},
Volume = {70},
Number = {6},
Publisher = {American Physical Society (APS)},
Year = {2004},
Month = {January},
ISSN = {0556-2813},
url = {http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000226308100014&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=47d3190e77e5a3a53558812f597b0b92},
Abstract = {Measurements of the polarization asymmetries σ(θ c.m.) and
σ(Eγ) of Compton scattering by 16O have been performed in
the energy range of 25-40 MeV over a range of scattering
angles between 90 and 150°. An analysis of the present data
combined with previous results indicates that significant,
narrow concentrations of E2 strength are not present below
an excitation energy of 40 MeV. The existence, however, of a
broad isovector giant quadrupole resonance exhausting a
large percentage of the isovector energy weighted sum rule
is not ruled out by the combined data. Additionally, the
present data are insensitive to modifications to the free
values of the nucleon polarizabilities, but cannot rule them
out.},
Doi = {10.1103/PhysRevC.70.064305},
Key = {fds248997}
}
@booklet{Ward81,
Author = {Ward, L and Tilley, DR and Skopik, DM and Roberson, NR and Weller,
HR},
Title = {Confirmation of the photoneutron cross section for He4 below
33 MeV},
Journal = {Physical Review C},
Volume = {24},
Number = {1},
Pages = {317-320},
Publisher = {American Physical Society (APS)},
Year = {1981},
Month = {January},
ISSN = {0556-2813},
url = {http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:A1981LW41200039&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=47d3190e77e5a3a53558812f597b0b92},
Abstract = {A recently reported measurement of the photoneutron cross
section for He4 indicates a value of about 1.0 mb for Ex of
23 to 33 MeV. This result, when combined with the previously
reported (,p) cross section in this energy region, implies a
(,p)-to-(,n) cross section ratio of 1.6 to 1.9 in the 26 to
29 MeV region of He4. We have used the inverse reaction
He3(n,)He4 to measure the photoneutron cross section for
He4. Our detailed balanced results confirm the recently
reported measurements. [NUCLEAR REACTIONS He3(n,)He4;
measured (E;), E=6.0 to 17.0 MeV. Results confirm the most
recent He4(,n)He3 measurements.] © 1981 The American
Physical Society.},
Doi = {10.1103/PhysRevC.24.317},
Key = {Ward81}
}
@booklet{Schmid96,
Author = {Schmid, GJ and Chasteler, RM and Laymon, CM and Weller, HR and Moore,
EF and Bybee, CR and Drake, JM and Tilley, DR and Vavrina, G and Wallace,
PM},
Title = {Correction factors for γ-ray relative intensities in the
66Ga radioisotope},
Journal = {Nuclear Physics A},
Volume = {607},
Number = {2},
Pages = {139-151},
Publisher = {Elsevier BV},
Year = {1996},
Month = {September},
ISSN = {0375-9474},
url = {http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:A1996VJ13000002&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=47d3190e77e5a3a53558812f597b0b92},
Abstract = {We present here strong evidence that recently published
values for the relative intensities of γ-ray lines in the
66Ga(β+ + EC)66Zn decay are incorrect at the higher
energies (∼ 30% too low at 4.8 MeV). In particular, we
find that our current results are consistent with a set of
correction factors which were first suggested 20 years ago,
but have gone largely ignored until now. Our validation of
these little known correction factors will have bearing on
experiments which use the 66Ga radioisotope to extrapolate
absolute detector efficiencies to higher energies. In
particular, we discuss the conclusions of a recent D(p,
γ)3He experiment which will be strongly affected by our
current results. The astrophysical S-factor data derived
from this D(p, γ)3He experiment are now seen to be
systematically too low by ∼ 30%.},
Doi = {10.1016/0375-9474(96)00214-X},
Key = {Schmid96}
}
@booklet{Collins82,
Author = {Collins, MT and Manglos, S and Roberson, NR and Sandorfi, AM and Weller,
HR},
Title = {Corrections to the B11(p, 0)C12 cross section and its
implications},
Journal = {Physical Review C},
Volume = {26},
Number = {2},
Pages = {332-338},
Publisher = {American Physical Society (APS)},
Year = {1982},
Month = {January},
ISSN = {0556-2813},
url = {http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:A1982PC05900003&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=47d3190e77e5a3a53558812f597b0b92},
Abstract = {We have performed two independent measurements of the B11(p,
0)C12 reaction over the energy range of Ep=5-14 MeV. The two
measurements are in good agreement with each other and
indicate that the previously accepted results are in error.
The new values for the 0 cross section reported here resolve
several outstanding conflicts. Their implications are
discussed. NUCLEAR REACTIONS B11(p, 0)C12, 5Ep14 MeV;
measured E, absolute cross sections for dd (90°, E0), dd
(90°, E1). © 1982 The American Physical
Society..},
Doi = {10.1103/PhysRevC.26.332},
Key = {Collins82}
}
@article{fds248877,
Author = {Stave, S and Ahmed, MW and Antolak, AJ and Blackston, MA and Crowell,
AS and Doyle, BL and Henshaw, SS and Howell, CR and Kingsberry, P and Perdue, BA and Rossi, P and Prior, RM and Spraker, MC and Weller,
HR},
Title = {Cross section measurements of the B10(d,n0)C11 reaction
below 160 keV},
Journal = {Physical Review C - Nuclear Physics},
Volume = {77},
Number = {5},
Pages = {054607},
Publisher = {American Physical Society (APS)},
Year = {2008},
Month = {May},
ISSN = {0556-2813},
url = {http://www.aps.org},
Abstract = {New data were taken at the Triangle Universities Nuclear
Laboratory to investigate the plausibility of using low
energy deuterons and the B10(d,n)C11 reaction as a portable
source of 6.3 MeV neutrons. Analysis of the data at and
below incident deuteron energies of 160 keV indicates an n0
neutron cross section that is lower than previous estimates
by at least three orders of magnitude. In separate runs,
deuterons with two different energies (160 and 140 keV) were
stopped in a B10 target. The resulting n0 neutrons of
approximately 6.3 MeV were detected at angles between 0°
and 150°. The angle integrated yields were used to
determine the astrophysical S factor for this reaction
assuming a constant value for the S factor below 160 keV.
The cross sections reported between 130 and 160 keV were
calculated using the extracted value of the S factor. The
measured n0 cross section is several orders of magnitude
smaller than previous results, thus eliminating B10(d,n)C11
as a portable source of intense neutrons with low energy
deuteron beams on the order of tens of microamps. In order
to gain insight into the reaction dynamics at these low
energies the cross section results have been compared with
results from calculations using the distorted wave Born
approximation (DWBA) and a detailed Hauser-Feshbach
calculation performed by the authors. The angular
distribution is consistent with the Hauser-Feshbach
calculation suggesting a statistical compound nucleus
reaction rather than a direct reaction. © 2008 The American
Physical Society.},
Doi = {10.1103/PhysRevC.77.054607},
Key = {fds248877}
}
@booklet{Rice97a,
Author = {Rice, BJ and Weller, HR},
Title = {Determination of the asymptotic??D-
to??S-state ratio
for??3He
from the reaction??1H??(d→,γ)3He
at??Ed,lab=80–0 keV},
Journal = {Physical Review C},
Volume = {55},
Number = {5},
Pages = {2700-2703},
Publisher = {American Physical Society (APS)},
Year = {1997},
Month = {May},
ISSN = {0556-2813},
url = {http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:A1997XB19000069&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=47d3190e77e5a3a53558812f597b0b92},
Doi = {10.1103/physrevc.55.2700},
Key = {Rice97a}
}
@article{fds248892,
Author = {Weller, RBEAIH},
Title = {Differential cross sections for g+p->K+--+Y for Lamda and
Sigma0 hyperons},
Journal = {Physical Review C},
Volume = {73},
Number = {3},
Pages = {035202},
Publisher = {The American Physical Society},
Year = {2006},
Month = {Winter},
ISSN = {0556-2813},
url = {http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000236466900065&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=47d3190e77e5a3a53558812f597b0b92},
Abstract = {www.aps.org},
Doi = {10.1103/PhysRevC.73.035202},
Key = {fds248892}
}
@booklet{Rice97,
Author = {Rice, BJ and Wulf, EA and Canon, RS and Kelley, JH and Prior, RM and Spraker, M and Tilley, DR and Weller, HR},
Title = {Direct determination of the doublet and quartet M1 cross
sections in p-d radiative capture at near-thermal
energies},
Journal = {Physical Review C},
Volume = {56},
Number = {6},
Pages = {R2917-R2919},
Publisher = {American Physical Society (APS)},
Year = {1997},
Month = {December},
ISSN = {0556-2813},
url = {http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000071132000003&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=47d3190e77e5a3a53558812f597b0b92},
Abstract = {Data obtained from studies of the [Formula Presented] and
the [Formula Presented] reactions have been used to extract
the transition amplitudes corresponding to [Formula
Presented] (doublet) and [Formula Presented] (quartet)
[Formula Presented] radiative capture. Protons (deuterons)
of 40 keV (80 keV) were stopped in [Formula Presented] ice
targets. Angular distributions of [Formula Presented],
[Formula Presented] [Formula Presented], and [Formula
Presented] were fit simultaneously in terms of the four
possible [Formula Presented]-wave capture amplitudes and the
two [Formula Presented] and [Formula Presented] possible
[Formula Presented]-wave capture amplitudes. The results
obtained at [Formula Presented] keV indicate that the
[Formula Presented] capture cross section is 13.77 [Formula
Presented] 0.66 nb, while the [Formula Presented] capture
cross section is 6.74 [Formula Presented] 0.44 nb. These
results agree with the predictions of a recent three-body
theoretical calculation which includes two-body currents
[e.g., meson-exchange currents (MEC’s)]. They also agree
with the previous experimental determination of the doublet
and quartet fusion rates obtained using the
Wolfenstein-Gerstein effect to vary the relative population
of [Formula Presented] and [Formula Presented] nuclear spins
in the [Formula Presented]-[Formula Presented]-[Formula
Presented] molecule prior to fusion. © 1997 The American
Physical Society.},
Doi = {10.1103/PhysRevC.56.R2917},
Key = {Rice97}
}
@booklet{Weller83,
Author = {Weller, HR and Seyler, RG and Moreh, R},
Title = {Direct-semidirect model angular distributions for radiative
capture or photonuclear reactions involving nonzero target
or residual spins},
Journal = {Physical Review C},
Volume = {28},
Number = {5},
Pages = {1959-1962},
Publisher = {American Physical Society (APS)},
Year = {1983},
Month = {January},
ISSN = {0556-2813},
url = {http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:A1983RQ00900009&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=47d3190e77e5a3a53558812f597b0b92},
Abstract = {A recent study of (, n0) reactions on Pb207 and Pb208
produced a direct-semidirect model calculation of the
angular distribution (the a2 coefficient) which was vastly
different for these two cases. In this paper we offer the
formal proof that this is incorrect. It is shown that the
angular distribution involving a target with spin is exactly
equal to that obtained if the target is treated as spin zero
with the residual spin being the single particle total
angular momentum in the final state. A corrected calculation
for a2 is presented for the case of Pb208(n0)Pb207 and
Pb207(n0)Pb206. NUCLEAR REACTIONS Formal derivation of the
relationship between the angular distribution for radiative
capture involving targets with and without spin for the
direct-semidirect model. Errors in the literature are
corrected. © 1983 The American Physical
Society.},
Doi = {10.1103/PhysRevC.28.1959},
Key = {Weller83}
}
@booklet{Schmid96b,
Author = {Schmid, GJ and Viviani, M and Rice, BJ and Chasteler, RM and Godwin, MA and Kiang, GC and Kiang, LL and Kievsky, A and Laymon, CM and Prior, RM and Schiavilla, R and Tilley, DR and Weller, HR},
Title = {Effects of non-nucleonic degrees of freedom in the
D(p},
Journal = {Physical review letters},
Volume = {76},
Number = {17},
Pages = {3088-3091},
Publisher = {American Physical Society (APS)},
Year = {1996},
Month = {April},
ISSN = {0031-9007},
url = {http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:A1996UF74400011&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=47d3190e77e5a3a53558812f597b0b92},
Doi = {10.1103/physrevlett.76.3088},
Key = {Schmid96b}
}
@booklet{Schmid96a,
Author = {Schmid, GJ and Viviani, M and Rice, BJ and Chasteler, RM and Godwin, MA and Kiang, GC and Kiang, LL and Kievsky, A and Laymon, CM and Prior, RM and Schiavilla, R and Tilley, DR and Weller, HR},
Title = {Effects of nonnucleonic degrees of freedom in the
D((p)over-right-arrow,gamma)He-3 and p((d)over-right-arrow,gamma)He-3
reactions (vol 76, pg 3088, 1996)},
Journal = {Physical Review Letters},
Volume = {77},
Number = {3},
Pages = {586-586},
Year = {1996},
Month = {July},
Key = {Schmid96a}
}
@booklet{King83,
Author = {King, SE and Roberson, NR and Weller, HR and Tilley,
DR},
Title = {Effects of the he-3 d-state in the reaction
h-2(p,gamma)he-3},
Journal = {Physical Review Letters},
Volume = {51},
Number = {10},
Pages = {877-880},
Publisher = {American Physical Society (APS)},
Year = {1983},
ISSN = {0031-9007},
url = {http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:A1983RE52300010&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=47d3190e77e5a3a53558812f597b0b92},
Abstract = {Angular distributions of the reaction H2(p,γ)He3 have been
measured for Ep from 6.5 to 16 MeV. A comparison of the
extracted a2 coefficients with an effective two-body direct
calculation indicates a sensitivity to the inclusion of
D-state components in the He3 wave function. These
calculations use He3 bound-state wave functions generated
from Faddeev-type equations. The theoretical three-body He3
ground-state wave functions having D-state probabilities of
5%-9% (D2=-0.224 to -0.236) are consistent with the present
data. © 1983 The American Physical Society.},
Doi = {10.1103/PhysRevLett.51.877},
Key = {King83}
}
@article{fds249002,
Author = {Prior, RM and Spraker, MC and Amthor, AM and Keeter, KJ and Nelson, SO and Sabourov, A and Sabourov, K and Tonchev, A and Ahmed, M and Kelley, JH and Tilley, DR and Weller, HR and Hofmann, HM},
Title = {Energy Dependence of the Astrophysical S-factor for the
6Li(p,gamma)7Be Reaction},
Journal = {Physical Review},
Volume = {C70},
Number = {5},
Pages = {055801},
Publisher = {The American Physical Society},
Year = {2004},
Month = {December},
ISSN = {0556-2813},
url = {http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000226161000065&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=47d3190e77e5a3a53558812f597b0b92},
Abstract = {Polarized proton beams with energies from 80 to 130 keV have
been used to determine the slope of the astrophysical S
factor for the 6Li(p, γ,0)7Be and 6Li(p,γ1) 7Be reactions.
The slope was determined from the relative yields at five
incident proton energies. The slope of the S factor was
found to be negative. The analyzing power measurements
indicate that the reaction proceeds predominately by s-wave
capture. The negative slope does not appear to be due to
low-binding-energy effects, the effects of nearby
resonances, or electron screening of the nuclei. A
resonating group model calculation demonstrates a new
mechanism for producing a negative slope at astrophysically
relevant energies in radiative capture reactions.},
Doi = {10.1103/PhysRevC.70.055801},
Key = {fds249002}
}
@article{fds248998,
Author = {Tilley, DR and Kelley, JH and Godwin, JL and Millener, DJ and Purcell,
J and Sheu, CG and Weller, HR},
Title = {Energy level of light nuclei A=8,9,10},
Journal = {Nuclear Physics},
Volume = {A745},
Number = {3-4},
Pages = {155-362},
Publisher = {Elsevier},
Year = {2004},
Month = {December},
ISSN = {0375-9474},
url = {http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000225431600001&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=47d3190e77e5a3a53558812f597b0b92},
Abstract = {A review of the evidence on the properties of the nuclei A =
8, 9 and 10, with emphasis on material leading to
information about the structure of the A = 8, 9, 10 systems.
© 2004 Elseveir B.V. All rights reserved.},
Doi = {10.1016/j.nuclphysa.2004.09.059},
Key = {fds248998}
}
@booklet{Tilley93,
Author = {Tilley, DR and Weller, HR and Cheves, CM},
Title = {Energy levels of light nuclei A = 16-17},
Journal = {Nuclear Physics, Section A},
Volume = {564},
Number = {1},
Pages = {1-183},
Publisher = {Elsevier BV},
Year = {1993},
Month = {November},
ISSN = {0375-9474},
url = {http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:A1993MN07100001&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=47d3190e77e5a3a53558812f597b0b92},
Abstract = {Compilation of energy levels of A = 16 and 17 nuclei, with
emphasis on the review of material leading to information
about the structure of theA = 16 and 17 systems. ©
1993.},
Doi = {10.1016/0375-9474(93)90073-7},
Key = {Tilley93}
}
@booklet{Tilley95,
Author = {Tilley, DR and Weller, HR and Cheves, CM and Chasteler,
RM},
Title = {Energy levels of light nuclei A = 18-19},
Journal = {Nuclear Physics, Section A},
Volume = {595},
Number = {1},
Pages = {1-170},
Publisher = {Elsevier BV},
Year = {1995},
Month = {December},
ISSN = {0375-9474},
url = {http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:A1995TK10000001&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=47d3190e77e5a3a53558812f597b0b92},
Abstract = {Compilation of energy levels of A = 18 and 19 nuclei, with
emphasis on the review of material leading to information
about the structure of the A = 18 and 19 systems. ©
1995.},
Doi = {10.1016/0375-9474(95)00338-1},
Key = {Tilley95}
}
@booklet{Tilley87,
Author = {Tilley, DR and Weller, HR and Hasan, HH},
Title = {Energy levels of light nuclei A = 3},
Journal = {Nuclear Physics, Section A},
Volume = {474},
Number = {1},
Pages = {1-60},
Publisher = {Elsevier BV},
Year = {1987},
Month = {November},
ISSN = {0375-9474},
url = {http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:A1987L950100001&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=47d3190e77e5a3a53558812f597b0b92},
Abstract = {A compilation of information on A = 3 nuclei is presented.
Emphasis is on possible structure of A = 3 systems and
final-state interactions in three-particle reactions. No
excited states of 3H and 3He have been established, and no
firm evidence for the existence of the trineutron or
triproton has been obtained. © 1987.},
Doi = {10.1016/0375-9474(87)90193-X},
Key = {Tilley87}
}
@booklet{Tilley92,
Author = {Tilley, DR and Weller, HR and Hale, GM},
Title = {Energy levels of light nuclei A = 4},
Journal = {Nuclear Physics A},
Volume = {541},
Number = {1},
Pages = {1-104},
Publisher = {Elsevier BV},
Year = {1992},
Month = {May},
ISSN = {0375-9474},
url = {http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:A1992JA61000001&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=47d3190e77e5a3a53558812f597b0b92},
Doi = {10.1016/0375-9474(92)90635-w},
Key = {Tilley92}
}
@article{fds249048,
Author = {Tilley, DR and Cheves, CM and Godwin, JL and Hale, GM and Hofmann, HM and Kelley, JH and Sheu, CG and Weller, HR},
Title = {Energy levels of light nuclei A=5,6,7},
Journal = {Nuclear Physics},
Volume = {A 708},
Number = {1-2},
Pages = {3-163},
Publisher = {Elsevier},
Year = {2002},
Month = {January},
ISSN = {0375-9474},
url = {http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000177798600001&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=47d3190e77e5a3a53558812f597b0b92},
Abstract = {A review of the evidence on the properties of the nuclei
A=5,6 and 7, with emphasis on material leading to
information about the structure of the A=5,6,7
systems.},
Doi = {10.1016/S0375-9474(02)00597-3},
Key = {fds249048}
}
@booklet{Tilley98,
Author = {Tilley, DR and Cheves, CM and Kelley, CH and Raman, S and Weller,
HR},
Title = {Energy levels of light nuclei, A=20},
Journal = {Nuclear Physics A},
Volume = {636},
Number = {3},
Pages = {249-364},
Publisher = {Elsevier BV},
Year = {1998},
Month = {June},
ISSN = {0375-9474},
url = {http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000074520400001&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=47d3190e77e5a3a53558812f597b0b92},
Abstract = {Compilation of energy levels of A = 20 nuclei, with emphasis
on the review of material leading to information about the
structure of the A = 20 systems. © 1998 Elsevier Science
B.V.},
Doi = {10.1016/S0375-9474(98)00129-8},
Key = {Tilley98}
}
@booklet{Cheves97,
Author = {Cheves, GM and Sheu, CW and Weller, HR and Tilley,
DR},
Title = {Energy levels of light nuclei, A=3-20, available from
Triangle Universities Nuclear Laboratory on the World Wide
Web.},
Journal = {ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL
SOCIETY},
Volume = {213},
Pages = {74-NUCL},
Year = {1997},
ISSN = {0065-7727},
url = {http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:A1997WP18701414&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=47d3190e77e5a3a53558812f597b0b92},
Key = {Cheves97}
}
@article{fds249011,
Author = {Kelley, ABFTCLASCIJH and Nelson, SO and Sabourov, K and Spraker, M and Weller, HR},
Title = {ep->ep pi-0 Reaction Studied in the Delta (1232) Mass Region
using Polarized Asymmetries},
Journal = {Physical Review},
Volume = {C68},
Number = {3},
Pages = {035202},
Publisher = {American Physical Society},
Year = {2004},
ISSN = {0556-2813},
url = {http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000186510900075&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=47d3190e77e5a3a53558812f597b0b92},
Abstract = {Measurements of the angular distributions of target and
double-spin asymmetries for the [Formula Presented] in the
exclusive channel [Formula Presented] obtained at the
Jefferson Lab in the [Formula Presented] range from 0.5 to
[Formula Presented] are presented. Results of the
asymmetries are compared with the unitary isobar model [D.
Drechsel et al., Nucl. Phys. A645, 145 (1999)], dynamical
models [T. Sato and T. S. Lee, Phys. Rev. C 54, 2660 (1996);
S. S. Kamalov et al., Phys. Lett. B 27, 522 (2001)], and the
effective Lagrangian theory [R. M. Davidson et al., Phys.
Rev. D 43, 71 (1991)]. Sensitivity to the different models
was observed, particularly in relation to the description of
background terms on which the target asymmetry depends
significantly. © 2003 The American Physical
Society.},
Doi = {10.1103/PhysRevC.68.035202},
Key = {fds249011}
}
@article{fds248894,
Author = {Weller, STEAIH},
Title = {Erratum: Radiative decays of the Sigma-0 (1385) and Lamda
(1520) hyperons [PRC 71, 054609 (2005)]},
Journal = {The Physical Review C},
Volume = {72},
Pages = {039902},
Year = {2005},
url = {http://aps.org/},
Key = {fds248894}
}
@article{fds249023,
Author = {Collaboration including, CLAS and Weller, HR},
Title = {Eta Photoproduction on the Proton for Photon Energies from
0.75 to 1.95 GeV},
Journal = {Physical Review Letters},
Volume = {89},
Number = {6},
Pages = {222002},
Publisher = {APS},
Year = {2002},
ISSN = {0031-9007},
url = {http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000235394100019&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=47d3190e77e5a3a53558812f597b0b92},
Abstract = {Differential cross sections for the reaction gamma p -->
eta' p have been measured with the CLAS spectrometer and a
tagged photon beam with energies from 1.527 to 2.227 GeV.
The results reported here possess much greater accuracy than
previous measurements. Analyses of these data suggest for
the first time the coupling of the eta'N channel to both the
S11(1535) and P11(1710) resonances, known to couple strongly
to the etaN channel in photoproduction on the proton, and
the importance of J = 3/2 resonances in the
process.},
Doi = {10.1103/physrevlett.96.062001},
Key = {fds249023}
}
@article{fds248888,
Author = {Weller, MDEAIH},
Title = {Eta prime Photoproduction on the proton for Photon Energies
from 1.527 to 2.227 GeV},
Journal = {Physical Review Letters},
Volume = {96},
Pages = {062001},
Publisher = {The American Physical Society},
Year = {2006},
Month = {Fall},
url = {http://www.aps.org/},
Key = {fds248888}
}
@booklet{Mcbroom80,
Author = {McBroom, RC and Weller, HR and Manglos, S and Roberson, NR and Wender,
SA and Tilley, DR and Skopik, DM and Arnold, LG and Seyler,
RG},
Title = {Evidence for a 2+ resonance in He4 at 40
MeV},
Journal = {Physical Review Letters},
Volume = {45},
Number = {4},
Pages = {243-246},
Publisher = {American Physical Society (APS)},
Year = {1980},
Month = {January},
ISSN = {0031-9007},
url = {http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:A1980KE58700009&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=47d3190e77e5a3a53558812f597b0b92},
Abstract = {The fore-aft asymmetry in the angular distribution of the
reaction H3(p,0)He4 has been measured as a function of
energy for protons from 17 to 31 MeV. The same quantity was
also measured using the reaction He4(e,H3)pe. These
asymmetry data were fitted with an expression which
consisted of a term which varied slowly with energy plus a
2+ resonance having parameters of c.m.=3.5 MeV and
Ex(res)=40.2 MeV. © 1980 The American Physical
Society.},
Doi = {10.1103/PhysRevLett.45.243},
Key = {Mcbroom80}
}
@booklet{Wagenaar89,
Author = {Wagenaar, DJ and Roberson, NR and Weller, HR and Tilley,
DR},
Title = {Evidence for M1 strength in the 3H(p},
Journal = {Physical review. C, Nuclear physics},
Volume = {39},
Number = {2},
Pages = {352-358},
Publisher = {American Physical Society (APS)},
Year = {1989},
Month = {February},
ISSN = {0556-2813},
url = {http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:A1989T184900007&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=47d3190e77e5a3a53558812f597b0b92},
Abstract = {Angular distributions of cross sections and analyzing powers
were measured for the H3(p,)4He reaction at incident proton
energies of 2.0, 5.0, and 9.0 MeV. The 90°analyzing power
was measured at 11 energies between 0.8 and 9.0 MeV. A
transition matrix element analysis indicated that the
inclusion of M1 strength gave better fits and eliminated the
anomalously large D23 (E2) strength reported in earlier
work. An E1-plus-E2 direct capture calculation was
performed. It is shown that this calculation can be brought
into agreement with the data if an M1 strength comparable to
that found in the T-matrix element analysis (0.51.0% of the
total capture cross section) is added. © 1989 The American
Physical Society.},
Doi = {10.1103/physrevc.39.352},
Key = {Wagenaar89}
}
@article{fds249028,
Author = {Lukashin, K and Smith, ES and Adams, GS and Anciant, E and Anghinolfi,
M and Asavapibhop, B and Audit, G and Auger, T and Avakian, H and Ball, J and Barrow, S and Battaglieri, M and Beard, K and Bektasoglu, M and Bertozzi, W and Bianchi, N and Biselli, A and Boiarinov, S and Bonner,
BE and Bouchigny, S and Branford, D and Briscoe, WJ and Brooks, WK and Burkert, VD and Calarco, JR and Carman, DS and Carnahan, B and Ciciani,
L and Clark, R and Cole, PL and Coleman, A and Cords, D and Corvisiero, P and Crabb, D and Crannell, H and Cummings, J and Degtiarenko, PV and Dennis,
LC and De Sanctis and E and DeVita, R and Dhuga, KS and Djalali, C and Dodge,
GE and Domingo, J and Doughty, D and Dragovitsch, P and Dytman, S and Eckhause, M and Egiyan, H and Egiyan, KS and Elouadrhiri, L and Empl, A and Fatemi, R and Feuerbach, RJ and Ficenec, J and Fissum, K and Forest, TA and Freyberger, A and Funsten, H and Gaff, S and Gai, M and Gavalian, G and Gilad, S and Gilfoyle, G and Giovanetti, K and Girard, P and Griffioen,
KA and Guidal, M and Guillo, M and Gyurjyan, V and Hardie, J and Heddle, D and Hersman, FW and Hicks, K and Hicks, RS and Holtrop, M and Hu, J and Hyde-Wright, CE and Ito, MM and Jenkins, D and Joo, K and Kelley, J and Khandaker, M and Kim, K and Kim, KY and Kim, W and Klein, A and Klein, FJ and Klusman, M and Kossov, M and Kramer, LH and Kuhn, SE and Laget, JM and Lawrence, D and Longhi, A and Manak, JJ and Marchand, C and McAleer, S and McCarthy, J and McNabb, JWC},
Title = {Exclusive electroproduction of [Formula Presented] mesons at
4.2 GeV},
Journal = {Physical Review C - Nuclear Physics},
Volume = {63},
Number = {6},
Pages = {11},
Publisher = {American Physical Society (APS)},
Year = {2001},
Month = {January},
ISSN = {0556-2813},
url = {http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000169182200050&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=47d3190e77e5a3a53558812f597b0b92},
Abstract = {We studied the exclusive reaction [Formula Presented] using
the [Formula Presented] decay mode. The data were collected
using a 4.2 GeV incident electron beam and the CEBAF Large
Acceptance Spectrometer (CLAS) at the Thomas Jefferson
National Accelerator Facility. Our experiment covers the
range in [Formula Presented] from 0.7 to 2.2 [Formula
Presented] and W from 2.0 to 2.6 GeV. Taken together with
all previous data, we find a consistent picture of [Formula
Presented] production on the proton. Our measurement shows
the expected decrease of the t slope with the vector-meson
formation time [Formula Presented] below 2 fm. At [Formula
Presented] fm, we measure [Formula Presented] The cross
section dependence on W as [Formula Presented] at [Formula
Presented] was determined by comparison with [Formula
Presented] production at HERA after correcting for threshold
effects. This is the same dependence as observed in
photoproduction. © 2001 The American Physical
Society.},
Doi = {10.1103/PhysRevC.63.065205},
Key = {fds249028}
}
@article{fds248898,
Author = {Weller, CHEAIH},
Title = {Exclusive pho-0 Meson Electroproduction from Hydrogen at
CLAS},
Journal = {Physics Letters B},
Volume = {B605},
Pages = {258},
Year = {2005},
url = {http://www.sciencedirect.com/},
Key = {fds248898}
}
@article{fds248899,
Author = {Weller, JPEAIH},
Title = {Exclusive Photoproduction of the Cascade
Hyperons},
Journal = {The Physica Review C},
Volume = {71},
Number = {5},
Pages = {058201},
Publisher = {The American Physical Society},
Year = {2005},
Month = {Winter},
ISSN = {0556-2813},
url = {http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000229440200074&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=47d3190e77e5a3a53558812f597b0b92},
Abstract = {We report on the first measurement of exclusive Ξ-(1321)
hyperon photoproduction in γp→K+K+Ξ- for 3.2<Eγ<3.9
GeV. The final state is identified by the missing mass in
p(γ,K+K+)X measured with the CLAS detector at Jefferson
Laboratory. We have detected a significant number of the
ground state Ξ-(1321)12+ and have estimated the total cross
section for its production. We also have strong evidence for
the first excited state Ξ-(1530)32+. Photoproduction
provides a copious source of Ξ's. We discuss the
possibilities of a search for the recently proposed Ξ5- and
Ξ5+ pentaquarks. © 2005 The American Physical
Society.},
Doi = {10.1103/PhysRevC.71.058201},
Key = {fds248899}
}
@article{fds249003,
Author = {Sabourov, K and Ahmed, MW and Canon, SR and Crowley, B and Joshi, K and Kelley, JH and Nelson, SO and Perdue, BA and Schreiber, EC and Sabourov,
A and Tonchev, A and Weller, HR and Wulf, EA and Prior, RM and Spraker, MC and Hofmann, HM and Trini, M},
Title = {Experimental and Theoretical Study of the D(d,gamma)4He
Reaction below Ecm = 60 keV},
Journal = {Physical Review},
Volume = {C70},
Number = {6},
Pages = {064601},
Publisher = {The American Physical Society},
Year = {2004},
Month = {December},
url = {http://www.aps.org/},
Abstract = {New measurements of the analyzing powers A and T have been
obtained for the H(d, γ) He reaction at a laboratory beam
energy of 115 keV. A transition matrix element analysis
results in a unique solution which indicates that the
reaction proceeds by 55% E2, 29% E1, and 16% M2 radiation.
These results are shown to be in good agreement with the
results of a new refined resonating group model calculation.
The impact of these results on the extrapolated value of the
astrophysical 5 factor for this reaction is discussed. y 20
2 4},
Doi = {10.1103/PhysRevC.70.064601},
Key = {fds249003}
}
@booklet{Weller82,
Author = {H. R. Weller},
Title = {Fast polarized neutron-capture in the giant-resonance
region},
Journal = {Institute Of Physics Conference Series},
Number = {62},
Pages = {494 -- 504},
Year = {1982},
Key = {Weller82}
}
@article{fds248890,
Author = {al, TCLE and Weller, IHR},
Title = {First evidence for spin-flip M1 strength in
40A},
Journal = {Physical Review C},
Volume = {73},
Number = {5},
Pages = {054306},
Publisher = {The American Physical Society},
Year = {2006},
Month = {Spring},
ISSN = {0556-2813},
url = {http://aps.org},
Abstract = {www.aps.org},
Doi = {10.1103/PhysRevC.73.054306},
Key = {fds248890}
}
@article{fds248884,
Author = {Bradford, RK and Weller, TCLASCIH},
Title = {First measurement of beam-recoil observables Cx and Cz in
hyperon photoproduction},
Journal = {Physical Review C},
Volume = {75},
Number = {3},
Pages = {035205},
Publisher = {The American Physical Society},
Year = {2007},
ISSN = {0556-2813},
url = {http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000245332200061&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=47d3190e77e5a3a53558812f597b0b92},
Abstract = {Spin transfer from circularly polarized real photons to
recoiling hyperons has been measured for the reactions
γ→+p→K++→ andγ →+p → K + +Σ → 0. The data
were obtained using the CEBAF Large Acceptance Spectrometer
(CLAS) detector at the Jefferson Lab for center-of-mass
energies W between 1.6 and 2.53 GeV, and for -0.85cos θ
K+c.m.<+0.95. For the θ, the polarization transfer
coefficient along the photon momentum axis, Cz, was found to
be near unity for a wide range of energy and kaon production
angles. The associated transverse polarization coefficient
Cx is smaller than Cz by a roughly constant difference of
unity. Most significantly, the total polarization vector,
including the induced polarization P, has magnitude
consistent with unity at all measured energies and
production angles when the beam is fully polarized. For the
0 this simple phenomenology does not hold. All existing
hadrodynamic models are in poor agreement with these
results. © 2007 The American Physical Society.},
Doi = {10.1103/PhysRevC.75.035205},
Key = {fds248884}
}
@article{fds249039,
Author = {Schreiber, EC and Canon, RS and Crowley, BT and Howell, CR and Kelley,
JH and Litvinenko, VN and Nelson, SO and Park, SH and Pinayev, LV and Prior, RM and Sabourov, K and Spraker, M and Tornow, W and Wu, Y and Wulf,
EA and Weller, HR},
Title = {First Measurement of the Near-Threshold Analyzing Power
Using a Free-Electron Laser Based g-Ray Source},
Journal = {Phys. Rev. C},
Volume = {61},
Pages = {061604},
Year = {2000},
Key = {fds249039}
}
@article{fds249018,
Author = {Carman, D and Weller, TCLASCIHR},
Title = {First Measurement of Transferred Polarization in the
Exclusive ep->e' K+ Lamda Reaction},
Journal = {Physical Review Letters},
Volume = {90},
Number = {13},
Pages = {131804},
Publisher = {American Physical Society},
Year = {2003},
url = {http://aps.org/},
Abstract = {Double-polarization measurements in the resonance region for
the p(→e,e′K+)→∧ reaction were performed. The data
showed a large degree of ∧ polarization, which is maximal
along the virtual phonon direction.},
Key = {fds249018}
}
@article{fds152671,
Author = {M. A. Blackston et al. and including H. R. Weller},
Title = {First Observation of the splitting of the E1 p-wave
amplitudes in low energy deuteron photodisintegration and
its implications for the Gerasimov-Drell-Hearn Sum Rule
integrand},
Journal = {Phys. Rev. C},
Volume = {78},
Pages = {034003},
Publisher = {American Physical Society},
Year = {2008},
url = {http://www.aps.org},
Key = {fds152671}
}
@article{fds248878,
Author = {Perdue, MABMWABA and Pywell, HRWBBRE and Norum, WAWRISKB and Sawatzky, KWJLSFMVGPYKWBD},
Title = {First observation of the splittings of the E1 p-wave
amplitudes in low energy deuteron photodisintegration and
its implications for the Gerasimov-Drell-Hearn Sum Rule
integrand},
Journal = {Phys. Rev.},
Volume = {C78},
Number = {034003},
Year = {2008},
Key = {fds248878}
}
@booklet{Parker95,
Author = {Parker, WE and Chadwick, MB and Dietrich, FS and Kammeraad, JE and Luke,
SJ and Sale, KE and Chasteler, RM and Godwin, MA and Kramer, LH and Schmid,
GJ and Weller, HR and Kerman, AK},
Title = {Fluctuation effects in radiative-capture to unstable
final-states - a test via the y-89(p-]-]gamma) reaction at
e(p)=19.6 mev},
Journal = {Physical Review C},
Volume = {52},
Number = {1},
Pages = {252-266},
Publisher = {American Physical Society (APS)},
Year = {1995},
Month = {July},
ISSN = {0556-2813},
url = {http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:A1995RJ70900034&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=47d3190e77e5a3a53558812f597b0b92},
Abstract = {We have developed an extended direct-semidirect (DSD) model
for fast-nucleon capture to virtual single-particle
configurations that subsequently damp into the compound
nucleus or (at sufficiently high excitation energies) escape
into the continuum. The inclusion of final-state fluctuation
effects is an important feature of this model. To test the
model we have measured the spectra of gamma rays from
approximately 10 MeV to the endpoint in the Y89(p,) reaction
with 19.6 MeV polarized protons from the TUNL tandem
accelerator. Gamma spectra were measured with a pair of 25.4
cm×25.4 cm anticoincidence- shielded NaI detectors at
angles of 30°, 55°, 90°, 125°, and 150°with respect to
the incident beam. The spectra show significant analyzing
powers and forward peaking of the angular distributions.
These features allow for the discrimination between
compounds processes and direct processes. Analyzing powers
and fore-aft asymmetries were observed for gamma energies
below those associated with direct-semidirect transitions to
known bound final states. We have also performed
Hauser-Feshbach calculations of the statistical component of
the gamma emission, which dominates below approximately 15
16 MeV. The extended DSD model reproduces the spectral
shapes and analyzing powers above this energy quite well.
There is no evidence in the present reaction that additional
mechanisms, such as multistep compound or multistep direct
emission, are required. © 1995 The American Physical
Society.},
Doi = {10.1103/physrevc.52.252},
Key = {Parker95}
}
@article{fds43131,
Author = {H.R. Weller},
Title = {Future plans for measuring the GDH Integrand on the Dueteron
at HIGS},
Pages = {269},
Booktitle = {Proceedings of the Third International Symposium on the GDH
Sum Rule and its extensions},
Publisher = {World Scientific Publishing Co. Ptc., Ltd.},
Editor = {S. Kuhn},
Year = {2005},
Key = {fds43131}
}
@booklet{Headly88,
Author = {Headly, DM and Sheline, RK and Tabor, SL and Hüttmeier, UJ and Gross,
CJ and Moore, EF and Wildenthal, BH and Weller, HR and Whitton, RM and Ragnarsson, I},
Title = {Gamma decay of high spin states in 25Mg above 6.1
MeV.},
Journal = {Physical review. C, Nuclear physics},
Volume = {38},
Number = {4},
Pages = {1698-1721},
Publisher = {American Physical Society (APS)},
Year = {1988},
Month = {October},
ISSN = {0556-2813},
url = {http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:A1988Q539800018&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=47d3190e77e5a3a53558812f597b0b92},
Abstract = {New high spin states in Mg25 (up to 13.3 MeV in excitation)
have been located using the N12,p)25Mg reaction at a
laboratory beam energy of 23.5 MeV. Gamma decay from 28
neutron unbound levels has been observed (24 of which are
reported here for the first time) up to 7 MeV above the
neutron drip line. Tentative identification of the yrast
line up to (17/2+ has been made, along with an extension of
the ground-state rotational band up to (15/2+ and the
location of several other states with J=(11/2+ and (15/2+.
Extensive comparison with the s-d shell model and the
cranked Nilsson-Strutinsky model has been made for the
states in Mg25. Very good agreement is observed between the
shell model and experimental level energies and -decay
branches. Potential energy surfaces for J=(11/2+, (13/2+,
and (17/2+ in the cranked Nilsson-Strutinsky model show a
noncollective oblate local minimum at (μ2,)=(0.34,60°) for
(11/2+ and prolate configurations at (0.2,-120°) for (13/2+
and (17/2+. These states compete with the collective
ground-state band members at 0 and become yrast for (17/2+.
The stabilization of these prolate aligned states relative
to more deformed, collective states of the same spin results
from shell effects at high spin in the cranking model, and
provides a description of the configuration in the yrast 8+;
(11/2+, (13/2+, and (17/2+; and 4+ states in Mg24, Mg25, and
Mg26, respectively. © 1988 The American Physical
Society.},
Doi = {10.1103/physrevc.38.1698},
Key = {Headly88}
}
@booklet{Litvinenko97,
Author = {V. N. Litvinenko and B. Burnham and M. Emamian and N. Hower and J. M. J. Madey and P. Morcombe and P. G. Oshea and S. H.
Park and R. Sachtschale and K. D. Straub and G. Swift and P.
Wang and Y. Wu and R. S. Canon and C. R. Howell and N. R.
Roberson and E.},
Title = {Gamma-ray production in a storage ring free-electron
laser},
Journal = {Physical Review Letters},
Volume = {78},
Number = {24},
Pages = {4569 -- 4572},
Year = {1997},
Month = {June},
Key = {Litvinenko97}
}
@booklet{Jury87,
Author = {Jury, JW and Kuo, PC and McNeill, KG and Ross, CK and Weller, HR and Raman,
S},
Title = {Ground-state photoneutron reactions in sup18O.},
Journal = {Phys Rev C Nucl Phys},
Volume = {36},
Number = {4},
Pages = {1243-1248},
Year = {1987},
Month = {October},
ISSN = {0556-2813},
url = {http://www.ncbi.nlm.nih.gov/pubmed/9954211},
Doi = {10.1103/physrevc.36.1243},
Key = {Jury87}
}
@booklet{Balbes91,
Author = {Balbes, MJ and Feldman, G and Kramer, LH and Weller, HR and Tilley,
DR},
Title = {Ground-state widths of 5He and 5Li determined in the 3H(d,
gamma )5He and the 3He(d, gamma )5Li reactions.},
Journal = {Physical review. C, Nuclear physics},
Volume = {43},
Number = {1},
Pages = {343-346},
Publisher = {American Physical Society (APS)},
Year = {1991},
Month = {January},
ISSN = {0556-2813},
url = {http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:A1991ET08600040&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=47d3190e77e5a3a53558812f597b0b92},
Abstract = {We have measured the widths of the 3/2- ground states of He5
and Li5 using the H3(d,)5He and the He3(d,)5Li reactions at
Ed=8.6 MeV. The -ray spectra were fitted with a convolution
of the NaI line-shape response function, as measured with
the H3(p,)4He reaction, and a Breit-Wigner single-level
expression. The widths extracted from the spectra were found
to be n=1.360.19 MeV for He5, and p=2.440.21 MeV for Li5.
These values, significantly different from previously quoted
measurements, lead to reduced widths which are equal to
within error, a result which is consistent with the
charge-symmetry property of the nuclear force. © 1991 The
American Physical Society.},
Doi = {10.1103/physrevc.43.343},
Key = {Balbes91}
}
@article{fds366032,
Author = {FELDMAN, G and BALBES, MJ and KRAMER, LH and WILLIAMS, JZ and WELLER,
HR and TILLEY, DR},
Title = {H-3(P,GAMMA)HE-4 REACTION AND THE (GAMMA,P) (GAMMA,N) RATIO
IN HE-4},
Journal = {PHYSICAL REVIEW C},
Volume = {42},
Number = {4},
Pages = {R1167-R1170},
Year = {1990},
url = {http://dx.doi.org/10.1103/PhysRevC.42.R1167},
Abstract = {The absolute differential cross section for the H3(p,)4He
reaction has been measured at =90° for Ep=2.0 15.0 MeV,
corresponding to photon energies E=21.3 31.1 MeV. The
present results are 35% lower than previously measured (p,)
cross sections and are in excellent agreement with recent
(,p) data obtained with monoenergetic photons. Comparing our
results to current photoneutron cross sections gives a ratio
(,p)/(,n)=1.09 0.17 for E=24 31 MeV. This ratio is
consistent with conventional theoretical predictions,
indicating that no charge-symmetry violation in He4 is
required. © 1990 The American Physical Society.},
Doi = {10.1103/PhysRevC.42.R1167},
Key = {fds366032}
}
@booklet{Headly87,
Author = {Headly, DM and Sheline, RK and Tabor, SL and Huttmeier, UJ and Gross,
CJ and Moore, EF and Wildenthal, BH and Weller, HR and Whitton, RM and Ragnarsson, I},
Title = {High-spin states and rotational coexistence in
25Mg},
Journal = {Physics Letters B},
Volume = {198},
Number = {4},
Pages = {433-437},
Publisher = {Elsevier BV},
Year = {1987},
Month = {December},
ISSN = {0370-2693},
url = {http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:A1987K955400001&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=47d3190e77e5a3a53558812f597b0b92},
Abstract = {New high spin states in 25Mg have been located above the
neutron threshold using the 12C(14N, pγ)25Mg reaction at
E=23.5 MeV. The members of the ground state rotational band
(Kπ= 5 2+ have been tentatively identified up to 15 2+. The
yrast 15 2+ (not a member of the ground state band) and 17
2+ states have also been tentatively assigned. These results
support the interpretation of the new 17 2+ state and the
previously known yrast 13 2+ state as fully aligned prolate
configurations, i.e., prolate particle-hole states with K=I
and γ=-120°. © 1987.},
Doi = {10.1016/0370-2693(87)90894-X},
Key = {Headly87}
}
@article{fds249008,
Author = {Weller, JWCMFTCLASCIHR},
Title = {Hyperon Photoproduction in the Nucleon Resonance
Region},
Journal = {Physical Review},
Volume = {C69},
Number = {4},
Pages = {042201},
Publisher = {The American Physical Society},
Year = {2004},
ISSN = {0556-2813},
url = {http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000221427500008&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=47d3190e77e5a3a53558812f597b0b92},
Abstract = {High-statistics cross sections and recoil polarizations for
the reactions γ+p → K+ + Λ and γ+p → K+ Σ0 have been
measured at CLAS for center-of-mass energies between 1.6 and
2.3 GeV. In the K+λ channel we confirm a resonance-like
structure near W= 1.9 GeV at backward kaon angles. Our data
show more complex s-and u- channel behavior than previously
seen, since structure is also present at forward angles, but
not at central angles. The position and width change with
angle, indicating that more than one resonance is playing a
role. Large positive Λ polarization at backward angles,
which is also energy dependent, is consistent with sizable
s- or u-channel contributions. Presently available model
calculations cannot explain these aspects of the
data.},
Doi = {10.1103/PhysRevC.69.042201},
Key = {fds249008}
}
@article{fds249049,
Author = {Pietralla, N and Litvinenko, VN and Hartman, S and Mikhailov, FF and Pinayev, IV and Swift, G and Ahmed, MW and Kelley, JH and Nelson, SO and Prior, R and Sabourov, K and Tonchev, AP and Weller,
HR},
Title = {Identification of the J-pi = 1- two-phonon state of
88Sr},
Journal = {Physical Review C},
Volume = {65},
Number = {047305},
Pages = {(3)},
Publisher = {American Physical Society},
Year = {2002},
Month = {April},
url = {http://www.aps.org/},
Abstract = {www.aps.org},
Key = {fds249049}
}
@article{fds248885,
Author = {Mcdonald, JE and France, RH and Jarvis, RA and Ahmed, MW and Blackston,
MA and Delbar, T and Gai, M and Kading, TJ and Parpottas, Y and Perdue, BA and Prior, RM and Rubin, DF and Spraker, MC and Yeomans, JD and Weissman, L and Weller, HR and Wilds, EL},
Title = {In beam tests of implanted helium targets},
Journal = {Journal of Instrumentation},
Volume = {1},
Number = {1},
Pages = {1-11},
Publisher = {IOP Publishing},
Year = {2006},
Month = {Winter},
ISSN = {1748-0221},
url = {http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000202975300002&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=47d3190e77e5a3a53558812f597b0b92},
Abstract = {Targets of 3,4He implanted into thin aluminum foils
(approximately 100, 200 or 600 μg/cm2) were prepared using
intense helium beams at low energy (20, 40 or 100 keV).
Uniformity was achieved by a beam raster across a tantalum
collimator at the rates of 0.1 Hz (vertical) and 1 Hz
(horizontal). Helium implantation into the very thin (80-100
μg/cm 2) aluminum foils failed to produce useful targets
due to an under estimation of the range by SRIM code. The
range in aluminum predicted by Northcliffe and Shilling and
the NIST online tabulation, on the other hand, over estimate
this range. An attempt to implant a second layer was also
carried out, but did not significantly increase the helium
content beyond the blistering limit. Rutherford Back
Scattering of 1.0 and 2.5 MeV proton beams and recoil helium
from 15.0 MeV oxygen beams were used to study the helium
content and profile. The helium content and profile were
very stable even after a prolonged bombardment (two days)
with moderately intense beams of 16O or 4He. Helium
implanted into thin foils is a good choice, for example, for
a measurement of the 3He(α,γ)7 Be reaction and the
associated S34 astrophysical cross section factor
(S-factor). © 2006 IOP Publishing Ltd and
SISSA.},
Doi = {10.1088/1748-0221/1/09/p09003},
Key = {fds248885}
}
@booklet{Oshea96,
Author = {P. G. Oshea and V. N. Litvinenko and J. M. J. Madey and N.
R. Roberson and E. C. Schreiber and K. D. Straub and K. J.
Weeks and H. R. Weller and Y. Wu},
Title = {Inverse Compton gamma-ray source for nuclear physics and
related applications},
Journal = {Nuclear Instruments \& Methods In Physics Research Section
A-accelerators Spectrometers Detectors And Associated
Equipment},
Volume = {375},
Number = {1-3},
Pages = {530 -- 534},
Year = {1996},
Month = {June},
Key = {Oshea96}
}
@article{fds248983,
Author = {Oshea, PG and Litvinenko, VN and Madey, JMJ and Roberson, NR and Schreiber, EC and Straub, KD and Weeks, KJ and Weller, HR and Wu,
Y},
Title = {Inverse Compton gamma-ray source for nuclear physics and
related applications},
Journal = {Nuclear Instruments \& Methods In Physics Research Section
A-accelerators Spectrometers Detectors And Associated
Equipment},
Volume = {375},
Number = {1-3},
Pages = {530-534},
Publisher = {Elsevier BV},
Year = {1996},
Month = {June},
ISSN = {0168-9002},
url = {http://dx.doi.org/10.1016/0168-9002(96)00052-6},
Abstract = {The development of intense, short-wavelength FEL light
sources has opened opportunities for new applications of
high-energy Compton-backscattered photons. These
applications range from medical imaging with X-rays to high
energy physics with photon colliders. In this paper we
discuss the practical aspects applications using polarized
Compton backscattered γ-rays in the 5-150 MeV range from
the Duke storage-ring-driven FEL. Such applications include:
nuclear physics, cancer therapy, radiographic imaging,
radiation effects testing, and positron production for
material science studies.},
Doi = {10.1016/0168-9002(96)00052-6},
Key = {fds248983}
}
@booklet{Feldman91,
Author = {Feldman, G and Kramer, LH and Weller, HR and Hayward, E and Dodge,
WR},
Title = {Isovector giant quadrupole resonance observed in
30Si(p},
Journal = {Physical review. C, Nuclear physics},
Volume = {43},
Number = {1},
Pages = {223-229},
Publisher = {American Physical Society (APS)},
Year = {1991},
Month = {January},
ISSN = {0556-2813},
url = {http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:A1991ET08600027&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=47d3190e77e5a3a53558812f597b0b92},
Abstract = {The Si30(p,)31P reaction has been studied in the proton
energy range Ep=2036 MeV. Angular distributions of the cross
section and the analyzing power have been measured for -ray
transitions to the ground state and the first excited state
of P31 over the angular range 37.5°145°at Ep=25.5 MeV.
Legendre polynomial fits to both observables yield nonzero
coefficients of order k=3,4, suggesting the interference of
E2 radiation with the dominant E1 radiation. A
transition-matrix-element analysis of the data indicates
that 26% of the 1 cross section at this energy arises from
E2 radiation, whereas only 10% of the 0 cross section can be
attributed to E2 radiation. Direct-semidirect calculations
give a direct E2 component of 7% for both channels,
suggesting significant excess E2 strength in the 1 channel
at this energy. The energy dependence of the 90°analyzing
power for 1 shows a resonance structure near Ep=34 MeV which
can be reproduced by a direct-semidirect calculation
including an E2 resonance at EGQR=38.6 MeV with a width of
GQR=5.0 MeV and a strength of 50% of the isovector E2
energy-weighted sum rule. The current results thus provide
strong evidence for collective E2 strength roughly at the
expected peak of the isovector giant quadrupole resonance
built on the first excited state of P31. © 1991 The
American Physical Society.},
Doi = {10.1103/physrevc.43.223},
Key = {Feldman91}
}
@booklet{Godwin94,
Author = {Godwin, MA and Hayward, E and Feldman, G and Kramer, LH and Weller, HR and Dodge, WR},
Title = {Isovector giant quadrupole resonance observed in
89Y(p},
Journal = {Physical review. C, Nuclear physics},
Volume = {50},
Number = {3},
Pages = {1528-1534},
Publisher = {American Physical Society (APS)},
Year = {1994},
Month = {September},
ISSN = {0556-2813},
url = {http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:A1994PH71600035&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=47d3190e77e5a3a53558812f597b0b92},
Doi = {10.1103/physrevc.50.1528},
Key = {Godwin94}
}
@booklet{Seyler84,
Author = {Seyler, RG and Weller, HR},
Title = {j dependence of polarization effects in nucleon capture
reactions},
Journal = {Physical Review C},
Volume = {30},
Number = {4},
Pages = {1146-1152},
Publisher = {American Physical Society (APS)},
Year = {1984},
Month = {January},
ISSN = {0556-2813},
url = {http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:A1984TM47400005&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=47d3190e77e5a3a53558812f597b0b92},
Abstract = {Polarized proton capture data indicate a sensitivity to the
j value (l±12) of the single particle final state for a
given l value. The direct capture model is examined and a
simple relationship between the analyzing powers for capture
to the two j values is derived for the case of spin
independent distortions. Calculations showing the effects of
spin dependent distortion are also presented. The results
are compared to the available data. © 1984 The American
Physical Society.},
Doi = {10.1103/PhysRevC.30.1146},
Key = {Seyler84}
}
@article{fds16769,
Author = {H.R. Weller},
Title = {Low Energy Proton-Radiative-Capture Measurements and
Astrophysical S-factors},
Series = {2003 by World Scientific Publishing Co. Pte.
Ltd.},
Booktitle = {Proceedings of the Eleventh International Symposium on
Capture Gamma-Ray Spectroscopy and RElated
Topics},
Publisher = {World Scientific},
Editor = {J. Kvasil and P. Cejnar and M. Krticka},
Year = {2003},
Key = {fds16769}
}
@booklet{Laymon96,
Author = {Laymon, CM and Prior, RM and Tilley, DR and Weller,
HR},
Title = {Low-energy polarized-proton capture on 6Li.},
Journal = {Physical review. C, Nuclear physics},
Volume = {53},
Number = {4},
Pages = {1977-1980},
Publisher = {American Physical Society (APS)},
Year = {1996},
Month = {April},
ISSN = {0556-2813},
url = {http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:A1996UG97000073&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=47d3190e77e5a3a53558812f597b0b92},
Abstract = {We have measured the thick-target yield and analyzing power
for the 6Li(p→,γ) reaction to the ground and first
excited state of 7Be below Ep=80 keV. High-purity-germanium
detectors were used to acquire data at five angles from
θ=0° to 124°. For both states the yield, integrated from
the beam energy of 80 keV down to 0 keV, is nearly isotropic
and the integrated analyzing power shows only small
deviations from zero. This is taken as an indication that,
unlike the case of the 7Li(p→,γ0) 8Be reaction, the
p-wave-capture process is unimportant compared to the s-wave
process. Transition-matrix-element analyses of the
ground-state data yield p-wave contributions of a few
percent. Under the assumption of a constant astrophysical S
factor, consistent with direct s-wave capture, a value of S
= (2.69±0.54) × 10-5 MeV b has been deduced.},
Doi = {10.1103/physrevc.53.1977},
Key = {Laymon96}
}
@booklet{Weller88,
Author = {Weller, HR and Lehman, DR},
Title = {Manifestations of the D-State in Light Nuclei},
Journal = {Annual Review of Nuclear and Particle Science},
Volume = {38},
Number = {1},
Pages = {563-608},
Publisher = {Annual Reviews},
Year = {1988},
Month = {December},
ISSN = {0163-8998},
url = {http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:A1988R251900015&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=47d3190e77e5a3a53558812f597b0b92},
Doi = {10.1146/annurev.ns.38.120188.003023},
Key = {Weller88}
}
@article{fds248999,
Author = {Weller, HAFTCLASCIHR},
Title = {Measurement of Beam-Spin Asymmetries for ep->e' pi+ X in the
Deeply Inelastic Regime},
Journal = {Physical Review},
Volume = {D69},
Pages = {112004},
Publisher = {The American Physical Society},
Year = {2004},
url = {http://www.aps.org/},
Key = {fds248999}
}
@article{fds249017,
Author = {Ripani, M and Weller, TCLASCIHR},
Title = {Measurement of ep->e'p pi+ pi- and Baryon Resonance
Analysis},
Journal = {Physical Review Letters},
Volume = {91},
Number = {2},
Pages = {022002},
Publisher = {American Physical Society},
Year = {2003},
ISSN = {0031-9007},
url = {http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000184086000008&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=47d3190e77e5a3a53558812f597b0b92},
Abstract = {The cross section for the reaction ep-->e(')ppi(+)pi(-) was
measured in the resonance region for 1.4<W<2.1 GeV and
0.5<Q2<1.5 GeV(2)/c(2) using the CLAS detector at Jefferson
Laboratory. The data show resonant structures not visible in
previous experiments. The comparison of our data to a
phenomenological prediction using available information on
N(*) and Delta states shows an evident discrepancy. A better
description of the data is obtained either by a sizable
change of the properties of the P13(1720) resonance or by
introducing a new baryon state, not reported in published
analyses.},
Doi = {10.1103/physrevlett.91.022002},
Key = {fds249017}
}
@article{fds249022,
Author = {Yun, J and Weller, TCLASCIHR},
Title = {Measurement of Inclusive Spin Structure Functions of the
Deuteron with CLAS},
Journal = {Physical Review C},
Volume = {C67},
Number = {5},
Pages = {055204},
Publisher = {American Physical Society},
Year = {2003},
ISSN = {0556-2813},
url = {http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000183382500056&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=47d3190e77e5a3a53558812f597b0b92},
Abstract = {We report the results of a new measurement of spin structure
functions of the deuteron in the region of moderate momentum
transfer [Q2 = 0.27-1.3 (GeV/c)2] and final hadronic state
mass in the nucleon resonance region (W = 1.08-2.0 GeV). We
scattered a 2.5 GeV polarized continuous electron beam at
Jefferson Lab off a dynamically polarized cryogenic solid
state target (15ND3) and detected the scattered electrons
with the CEBAF large acceptance spectrometer. From our data,
we extract the longitudinal double spin asymmetry A∥ and
the spin structure function g1d. Our data are generally in
reasonable agreement with existing data from SLAC where they
overlap, and they represent a substantial improvement in
statistical precision. We compare our results with
expectations for resonance asymmetries and extrapolated deep
inelastic scaling results. Finally, we evaluate the first
moment of the structure function g1d and study its approach
to both the deep inelastic limit at large Q2 and to the
Gerasimov-Drell-Hearn sum rule at the real photon limit
(Q2→0). We find that the first moment varies rapidly in
the Q2 range of our experiment and crosses zero at Q2
between 0.5 and 0.8 (GeV/c)2, indicating the importance of
the Δ resonance at these momentum transfers.},
Doi = {10.1103/physrevc.67.055204},
Key = {fds249022}
}
@article{fds249005,
Author = {Weller, KJFTCLASCIHR},
Title = {Measurement of Polarized Structure Function sigma(LT') for
p(e,e'p)pi^0 from Single pi^0 Electroproduction in the Delta
Resonance Region},
Journal = {Physical Review},
Volume = {C68},
Pages = {032201},
Publisher = {Amercian Physical Society},
Year = {2004},
url = {http://www.aps.org/},
Key = {fds249005}
}
@booklet{Moltz97,
Author = {Moltz, DM and Powell, JD and Rice, A and Rowe, MW and Cerny, J and Hansper,
V and Wulf, E and Weller, HR and Champagne, AE and Hofstee,
M},
Title = {Measurement of the (7)BE(p,gamma) cross section at low
energies.},
Journal = {ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL
SOCIETY},
Volume = {213},
Pages = {43-NUCL},
Publisher = {AMER CHEMICAL SOC},
Year = {1997},
Month = {April},
ISSN = {0065-7727},
url = {http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:A1997WP18701385&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=47d3190e77e5a3a53558812f597b0b92},
Key = {Moltz97}
}
@booklet{August87,
Author = {August, RA and Weller, HR and Tilley, DR},
Title = {Measurement of the 12C(n, gamma 0)13C cross section in the
giant dipole resonance region.},
Journal = {Physical review. C, Nuclear physics},
Volume = {35},
Number = {2},
Pages = {393-395},
Publisher = {American Physical Society (APS)},
Year = {1987},
Month = {February},
ISSN = {0556-2813},
url = {http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:A1987G037800002&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=47d3190e77e5a3a53558812f597b0b92},
Abstract = {The C12(n,0) 13C excitation function at 90°has been
measured for neutron energies from 6.5 to 18.5 MeV. Whereas
previous measurements disagreed at the lower energies with a
direct-semidirect capture calculation based on C12(p,0) 13N
data, the present results, especially when the uncertainty
in absolute cross section is considered, indicate reasonable
qualitative agreement with the calculation. © 1987 The
American Physical Society.},
Doi = {10.1103/physrevc.35.393},
Key = {August87}
}
@article{fds249010,
Author = {Kelley, KJFTCLASCIJH and Nelson, SO and Sabourov, K and Spraker, M and Weller, HR},
Title = {Measurement of the Polarized Structure Function Sigma LT for
the reaction p(e,e')p p i-0 in the Delta (1232) Resonance
Region},
Journal = {Physical Review},
Volume = {C68},
Number = {3},
Pages = {014313},
Publisher = {American Physical Society},
Year = {2004},
ISSN = {0556-2813},
url = {http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000186510900011&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=47d3190e77e5a3a53558812f597b0b92},
Abstract = {The polarized longitudinal-transverse structure function σ
LT′ has been measured in the Δ(1232) resonance region at
Q2 = 0.40 and 0.65 GeV2. Data for the p(e →,e′p) π0
reaction were taken at Jefferson Lab with the CEBAF large
acceptance spectrometer (CLAS) using longitudinally
polarized electrons at an energy of 1.515 GeV. For the first
time a complete angular distribution was measured,
permitting the separation of different nonresonant
amplitudes using a partial wave analysis. Comparison with
previous beam asymmetry measurements at MAMI indicate a
deviation from the predicted Q2 dependence of σLT′ using
recent phenomenological models.},
Doi = {10.1103/PhysRevC.68.0322XX},
Key = {fds249010}
}
@article{fds248896,
Author = {al, KJE and Weller, IH},
Title = {Measurement of the Polarized Structure Function Sigma_LT'
for kPion Electroproduction in the Roper-REsonance
Region},
Journal = {The Physical Review C},
Volume = {72},
Number = {5},
Pages = {058202},
Publisher = {The American Physical Society},
Year = {2005},
ISSN = {0556-2813},
url = {http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000233607500059&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=47d3190e77e5a3a53558812f597b0b92},
Abstract = {The polarized longitudinal-transverse structure function
σLT' measures the interference between real and imaginary
amplitudes in pion electroproduction and can be used to
probe the coupling between resonant and nonresonant
processes. We report new measurements of σLT' in the
N(1440)12+ (Roper) resonance region at Q2=0.40 and 0.65GeV2
for both the π0p and π+n channels. The experiment was
performed at Jefferson Lab with the CEBAF Large Acceptance
Spectrometer (CLAS) using longitudinally polarized electrons
at a beam energy of 1.515 GeV. Complete angular
distributions were obtained and are compared to recent
phenomenological models. The σLT'(π+n) channel shows a
large sensitivity to the Roper-resonance multipoles M1- and
S1- and provides new constraints on models of resonance
formation. © 2005 The American Physical
Society.},
Doi = {10.1103/PhysRevC.72.058202},
Key = {fds248896}
}
@booklet{Sarty93,
Author = {Sarty, AJ and Doss, KGR and Feldman, G and Hallin, EL and Pywell, RE and Retzlaff, GA and Skopik, DM and Weller, HR and Dodge, WR and Lightbody,
JW and Oconnell, JS and Chang, CC},
Title = {Measurement of the reaction he-3(gamma,pp)n and its relation
to 3-body forces},
Journal = {Physical Review C},
Volume = {47},
Number = {2},
Pages = {459-467},
Year = {1993},
Month = {February},
Key = {Sarty93}
}
@article{fds249004,
Author = {Weller, RFFTCLASCIHR},
Title = {Measurement of the Spin Structure Functions in the Resonance
Region for Q^2 from 0.15 to 1.6 GeV^2},
Journal = {Physical Review Letters},
Volume = {91},
Pages = {222002},
Publisher = {American Physical Society},
Year = {2004},
url = {http://www.aps.org/},
Key = {fds249004}
}
@article{fds248876,
Author = {Ahmed, MW and Blackston, MA and Perdue, BA and Tornow, W and Weller, HR and Norum, B and Sawatzky, B and Prior, RM and Spraker,
MC},
Title = {Near-threshold deuteron photodisintegration: An indirect
determination of the Gerasimov-Drell-Hearn sum rule and
forward spin polarizability (γ0) for the deuteron at low
energies},
Journal = {Physical Review C - Nuclear Physics},
Volume = {77},
Number = {4},
Pages = {044005},
Publisher = {American Physical Society (APS)},
Year = {2008},
Month = {April},
ISSN = {0556-2813},
url = {http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000255457700016&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=47d3190e77e5a3a53558812f597b0b92},
Abstract = {It is shown that a measurement of the analyzing power
obtained with linearly polarized γ-rays and an unpolarized
target can provide an indirect determination of two physical
quantities. These are the Gerasimov-Drell-Hearn (GDH) sum
rule integrand for the deuteron and the sum rule integrand
for the forward spin polarizability (γ0) near
photodisintegration threshold. An analysis of data for the
d(γ→,n)p reaction and other experiments is presented. A
fit to the world data analyzed in this manner gives a GDH
integral value of -603±43μb between the
photodisintegration threshold and 6 MeV. This result is the
first confirmation of the large contribution of the 1S0(M1)
transition predicted for the deuteron near
photodisintegration threshold. In addition, a sum rule value
of 3.75±0.18 fm4 for γ0 is obtained between
photodisintegration threshold and 6 MeV. This is a first
indirect confirmation of the leading-order effective field
theory prediction for the forward spin-polarizability of the
deuteron. © 2008 The American Physical Society.},
Doi = {10.1103/PhysRevC.77.044005},
Key = {fds248876}
}
@booklet{Wender82,
Author = {Wender, SA and Weller, HR and Roberson, NR and Tilley, DR and Seyler,
RG},
Title = {Neutron capture in the giant resonance region of
N15},
Journal = {Physical Review C},
Volume = {25},
Number = {1},
Pages = {89-96},
Publisher = {American Physical Society (APS)},
Year = {1982},
Month = {January},
ISSN = {0556-2813},
url = {http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:A1982MY35900010&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=47d3190e77e5a3a53558812f597b0b92},
Abstract = {The N14(n,0)N15 reaction has been studied over a neutron
energy range of 5.6 MeV to 13 MeV. Data include a 90°
excitation function measured in 200 keV steps, and seven
angular distributions. The angular distribution data show
good agreement with the results of a phenomenological direct
semidirect model calculation. No non-E1 radiation is
required to account for these data. The cross section as a
function of energy is similar to the N14(p,0)O15 reaction
and different from the C14(p,0)N15 reaction. These
differences can be understood in terms of the different
isospin states allowed in each reaction. NUCLEAR REACTIONS
N14(n,0)N15, measured (E,) from En=5.6-13.0 MeV, DSD model
calculations, results compared to C14(p,0)N15 and
N14(p,0)015. © 1982 The American Physical
Society.},
Doi = {10.1103/PhysRevC.25.89},
Key = {Wender82}
}
@booklet{King82,
Author = {King, SE and Potokar, M and Roberson, NR and Weller, HR and Tilley,
DR},
Title = {Neutron-capture in the giant-resonance region of
pb-209},
Journal = {Nuclear Physics A},
Volume = {384},
Number = {1-2},
Pages = {129-142},
Publisher = {Elsevier BV},
Year = {1982},
ISSN = {0375-9474},
url = {http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:A1982PB48700010&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=47d3190e77e5a3a53558812f597b0b92},
Abstract = {The giant dipole resonance region of 209Pb has been studied
via the reaction 208Pb(n, γ) for transitions leading to the
ground and first excited states of 209Pb. Measured angular
distributions were used to extract a2 coefficients at 8
energies and a1 coefficients at 4 energies between 10 and 13
MeV. The results are compared to direct-semidirect model and
pure resonance model calculations using both real and
complex form factors. Absolute cross sections at 90° were
measured in 200 keV steps from En(Ex) = 7.0(10.9) MeV to
13.0(16.9) MeV and are compared to previous data and to DSD
and PRM calculations. The transitions to the ground and
first excited states exhaust 0.39 % and 0.13 % of the
classical dipole sum, respectively, between the excitation
energies of 10.9 and 16.9 MeV. © 1982.},
Doi = {10.1016/0375-9474(82)90309-8},
Key = {King82}
}
@booklet{Tornow98,
Author = {Tornow, W and DeBraeckeleer, L and Howell, CR and Roberson, NR and Walter, RL and Weller, HR},
Title = {Nuclear research at Duke [5]},
Journal = {Science},
Volume = {279},
Number = {5350},
Pages = {462-463},
Year = {1998},
Month = {January},
Key = {Tornow98}
}
@article{fds249000,
Author = {Weller, VKFTCLASCIHR},
Title = {Observation of an Exotic Baryon withe S=+1 in
Photoproduction from the Proton},
Journal = {Physical Review Letters},
Volume = {92},
Number = {3},
Pages = {032001},
Publisher = {The American Physical Society},
Year = {2004},
ISSN = {0031-9007},
url = {http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000188392800014&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=47d3190e77e5a3a53558812f597b0b92},
Abstract = {The reaction gamma p-->pi(+)K(-)K(+)n was studied at
Jefferson Laboratory using a tagged photon beam with an
energy range of 3-5.47 GeV. A narrow baryon state with
strangeness S=+1 and mass M=1555+/-10 MeV/c(2) was observed
in the nK(+) invariant mass spectrum. The peak's width is
consistent with the CLAS resolution (FWHM=26 MeV/c(2)), and
its statistical significance is (7.8+/-1.0)sigma. A baryon
with positive strangeness has exotic structure and cannot be
described in the framework of the naive constituent quark
model. The mass of the observed state is consistent with the
mass predicted by the chiral soliton model for the Theta(+)
baryon. In addition, the pK(+) invariant mass distribution
was analyzed in the reaction gamma p-->K(-)K(+)p with high
statistics in search of doubly charged exotic baryon states.
No resonance structures were found in this
spectrum.},
Doi = {10.1103/physrevlett.92.032001},
Key = {fds249000}
}
@article{fds29586,
Author = {S. Stepanayan for the CLAS Collaboration (including H.R.
Weller)},
Title = {Observation of an Exotic S=+1 Baryon in Exclusive
Photoproduction from the Deuteron},
Journal = {Physical Review Letters},
Volume = {91},
Pages = {252001},
Publisher = {American Physical Society},
Year = {2004},
url = {http://www.aps.org},
Key = {fds29586}
}
@article{fds249012,
Author = {Stepanyan, S and Weller, TCLASCIHR},
Title = {Observation of an Exotic S=+1 Baryon in Exclusive
Photoproduction from the Deuteron},
Journal = {Physical Review Letters},
Volume = {91},
Number = {25},
Pages = {252001},
Publisher = {American Physical Society},
Year = {2003},
Month = {December},
ISSN = {0031-9007},
url = {http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000187430900010&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=47d3190e77e5a3a53558812f597b0b92},
Abstract = {In an exclusive measurement of the reaction
gammad-->K(+)K(-)pn, a narrow peak that can be attributed to
an exotic baryon with strangeness S=+1 is seen in the K(+)n
invariant mass spectrum. The peak is at 1.542+/-0.005
GeV/c(2) with a measured width of 0.021 GeV/c(2) FWHM, which
is largely determined by experimental mass resolution. The
statistical significance of the peak is (5.2+/-0.6)sigma.
The mass and width of the observed peak are consistent with
recent reports of a narrow S=+1 baryon by other experimental
groups.},
Doi = {10.1103/physrevlett.91.252001},
Key = {fds249012}
}
@article{fds249013,
Author = {Egiyan, KS and Weller, TCLASCIHR},
Title = {Observation of Nuclear Scaling in the A(e,e') Reaction at
xB>1},
Journal = {Physical Review C},
Volume = {68},
Number = {1},
Publisher = {American Physical Society},
Year = {2003},
ISSN = {0556-2813},
url = {http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000184616100019&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=47d3190e77e5a3a53558812f597b0b92},
Abstract = {The ratios of inclusive electron scattering cross sections
of [Formula Presented] [Formula Presented] and [Formula
Presented] to [Formula Presented] have been measured for the
first time. It is shown that these ratios are independent of
[Formula Presented] at [Formula Presented] for [Formula
Presented] where the inclusive cross section depends
primarily on the high momentum components of the nuclear
wave function. The observed scaling shows that the momentum
distributions at high-momenta have the same shape for all
nuclei and differ only by a scale factor. The observed onset
of the scaling at [Formula Presented] and [Formula
Presented] is consistent with the kinematical expectation
that two-nucleon short range correlations (SRC) dominate the
nuclear wave function at [Formula Presented] The values of
these ratios in the scaling region can be related to the
relative probabilities of SRC in nuclei with [Formula
Presented] Our data, combined with calculations and other
measurements of the [Formula Presented] ratio, demonstrate
that for nuclei with [Formula Presented] these probabilities
are 4.9–5.9 times larger than in deuterium, while for
[Formula Presented] it is larger by a factor of about 3.8.
© 2003 The American Physical Society.},
Doi = {10.1103/PhysRevC.68.014313},
Key = {fds249013}
}
@article{fds29366,
Author = {K. Sh. Egiyan for the CLAS Collaboraton (including J. H.
Kelley and S.O. Nelson and K. Sabourov and M. Spraker and H.R.
Weller)},
Title = {Observation of Nuclear Scaling in the A(e,e') Reaction at
x_B > 1},
Journal = {Physical Review},
Volume = {C68},
Pages = {014313},
Publisher = {American Physical Society},
Year = {2004},
url = {http://aps.org},
Key = {fds29366}
}
@booklet{Kramer93,
Author = {Kramer, LH and Chasteler, RM and Hayward, E and Prior, RM and Tilley,
DR and Weller, HR},
Title = {Observation of p-wave capture strength in the 2H(, γ)4He
reaction at Ed= 80−0 keV},
Journal = {Physics Letters B},
Volume = {304},
Number = {3-4},
Pages = {208-213},
Publisher = {Elsevier BV},
Year = {1993},
Month = {April},
ISSN = {0370-2693},
url = {http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:A1993KZ79100004&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=47d3190e77e5a3a53558812f597b0b92},
Doi = {10.1016/0370-2693(93)90284-o},
Key = {Kramer93}
}
@booklet{Chasteler94,
Author = {Chasteler, RM and Weller, HR and Tilley, DR and Prior,
RM},
Title = {Observation of substantial p-wave capture strength in the
7Li(p},
Journal = {Physical review letters},
Volume = {72},
Number = {25},
Pages = {3949-3952},
Publisher = {American Physical Society (APS)},
Year = {1994},
Month = {June},
ISSN = {0031-9007},
url = {http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:A1994NT20500008&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=47d3190e77e5a3a53558812f597b0b92},
Abstract = {The Li7(p,)8Be reaction has been studied using polarized
protons having an incident energy in the range Ep(lab)=80-0
keV. The measured angular distributions of the cross section
()A0 and analyzing power Ay() were interpreted using a model
independent transition-matrix element analysis. The large
(40%) analyzing power at 90° indicates the presence of an
appreciable p-wave capture strength at these energies. The
direct-capture model is used to show that this could reduce
the astrophysical S factor by as much as 40%. © 1994 The
American Physical Society.},
Doi = {10.1103/physrevlett.72.3949},
Key = {Chasteler94}
}
@booklet{Weller94b,
Author = {WELLER, HR and CHASTELER, RM and TILLEY, DR and PRIOR,
RM},
Title = {OBSERVATION OF SUBSTANTIAL P-WAVE CAPTURE STRENGTH IN THE
LI7((P)-],GAMMA)BE-8 REACTION AT E(P)(LAB)=80 KEV AND
IMPLICATIONS ON ASTROPHYSICAL S-FACTORS},
Journal = {ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL
SOCIETY},
Volume = {208},
Pages = {62-NUCL},
Year = {1994},
ISSN = {0065-7727},
url = {http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:A1994PA26900061&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=47d3190e77e5a3a53558812f597b0b92},
Key = {Weller94b}
}
@booklet{Park98,
Author = {S. H. Park and V. N. Litvinenko and B. Burnham and Y. Wu and J. M. J. Madey and R. S. Canon and C. R. Howell and N. R.
Roberson and E. C. Schreiber and M. Spraker and W. Tornow and H. R. Weller and I. V. Pinayev},
Title = {OK-4/Duke monochromatic gamma-ray source: performance and
prediction},
Journal = {Nuclear Instruments \& Methods In Physics Research Section
A-accelerators Spectrometers Detectors And Associated
Equipment},
Volume = {407},
Number = {1-3},
Pages = {224 -- 228},
Year = {1998},
Month = {April},
Key = {Park98}
}
@article{fds248906,
Author = {Park, SH and Litvinenko, VN and Burnham, B and Wu, Y and Madey, JMJ and Canon, RS and Howell, CR and Roberson, NR and Schreiber, EC and Spraker,
M and Tornow, W and Weller, HR and Pinayev, IV},
Title = {OK-4/Duke monochromatic gamma-ray source: performance and
prediction},
Journal = {Nuclear Instruments \& Methods In Physics Research Section
A-accelerators Spectrometers Detectors And Associated
Equipment},
Volume = {407},
Number = {1-3},
Pages = {224-228},
Publisher = {Elsevier BV},
Year = {1998},
Month = {April},
ISSN = {0168-9002},
url = {http://dx.doi.org/10.1016/S0168-9002(97)01400-9},
Abstract = {A beam of nearly monochromatic γ-rays was produced via
intracavity Compton backscattering in the OK-4/Duke storage
ring FEL. The OK-4 FEL operated in the near-UV range
(345-413 nm) with electron energies of 260-550 MeV. The
energy of the produced γ-rays varied from 3 to 16 MeV. In
the near future we plan to increase the energy of the
γ-rays to 50 MeV by increasing the electron energy and
reducing FEL wavelength. Results from direct measurements of
the γ-ray flux and energy resolution (using a 3 mm diameter
lead collimator) (Litvinenko et al., Phys. Rev. Lett. 78
(1997) 4569) are very close to our theoretical predictions.
The energy resolution of the γ-rays was ∼ 1%. In this
paper we present a comparison of our measurements with
theoretical predictions and our plans for future
improvements. We discuss upgrades of our system to attain an
energy resolution down to 0.1% and to increase the flux. A
brief description of the experimental program utilizing the
OK-4/Duke monochromatic γ-ray source is presented. © 1998
Elsevier Science B.V. All rights reserved.},
Doi = {10.1016/S0168-9002(97)01400-9},
Key = {fds248906}
}
@article{fds248895,
Author = {Rossi, P and Mirazita, M and Ronchetti, F and De Sanctis and E and Adams,
G and Ambrozewicz, P and Anciant, E and Anghinolfi, M and Asavapibhop,
B and Audit, G and Avakian, H and Bagdasaryan, H and Ball, JP and Barrow,
S and Battaglieri, M and Beard, K and Bektasoglu, M and Bellis, M and Benmouna, N and Berman, BL and Bertozzi, W and Bianchi, N and Biselli,
AS and Boiarinov, S and Bonner, BE and Bouchigny, S and Bradford, R and Branford, D and Briscoe, WJ and Brooks, WK and Burkert, VD and Butuceanu, C and Calarco, JR and Carman, DS and Carnahan, B and Chen, S and Cole, PL and Cords, D and Corvisiero, P and Crabb, D and Crannell, H and Cummings, JP and De Vita and R and Degtyarenko, PV and Denizli, H and Dennis, L and Deppman, A and Dharmawardane, KV and Dhuga, KS and Djalali, C and Dodge, GE and Doughty, D and Dragovitsch, P and Dugger,
M and Dytman, S and Dzyubak, OP and Egiyan, H and Egiyan, KS and Elouadrhiri, L and Empl, A and Eugenio, P and Fatemi, R and Feuerbach,
RJ and Ficenec, J and Forest, TA and Funsten, H and Gai, M and Gavalian, G and Gilad, S and Gilfoyle, GP and Giovanetti, KL and Gordon, CIO and Griffioen, K and Guidal, M and Guillo, M and Guo, L and Gyurjyan, V and Hadjidakis, C and Hakobyan, RS and Hardie, J and Heddle, D and Hersman,
FW and Hicks, K and Hicks, RS and Holtrop, M and Hu, J and Hyde-Wright, CE and Ilieva, Y and Ito, MM and Jenkins, D and Jo, HS and Joo, K and Kellie, JD and Khandaker, M and Kim, KY and Kim, K and Kim, W and Klein, A and Klein, FJ and Klimenko, AV and Klusman, M and Kossov, M and Kramer, LH and Kuhn, J and Kuhn, SE and Lachniet, J and Laget, JM and Lawrence, D and Li, J and Lima,
ACS and Livingston, K and Lukashin, K and Manak, JJ and Marchand, C and McAleer, S and McCarthy, J and McNabb, JWC and Mecking, BA and Mehrabyan, S and Melone, JJ and Mestayer, MD and Meyer, CA and Mikhailov, K and Miskimen, R and Mokeev, V and Morand, L and Morrow, SA and Muccifora, V and Mueller, J and Mutchler, GS and Napolitano, J and Nasseripour, R and Niccolai, S and Niculescu, G and Niculescu, I and Niczyporuk, BB and Niyazov, RA and Nozar, M and O'Brien, JT and O'Rielly, GV and Osipenko, M and Ostrovidov, A and Park, K and Pasyuk,
E and Peterson, G and Philips, SA and Pivnyuk, N and Pocanic, D and Pogorelko, O and Polli, E and Pozdniakov, S and Preedom, BM and Price,
JW and Prok, Y and Protopopescu, D and Qin, LM and Raue, BA and Riccardi,
G and Ricco, G and Ripani, M and Ritchie, BG and Rosner, G and Rowntree, D and Rubin, PD and Sabatié, F and Salgado, C and Santoro, JP and Sapunenko,
V and Schumacher, RA and Serov, VS and Sharabian, YG and Shaw, J and Simionatto, S and Skabelin, AV and Smith, ES and Smith, LC and Sober,
DI and Spraker, M and Stavinsky, A and Stepanyan, S and Stokes, B and Stoler, P and Strakovsky, II and Strauch, S and Taiuti, M and Taylor, S and Tedeschi, DJ and Thoma, U and Thompson, R and Tkabladze, A and Todor, L and Tur, C and Ungaro, M and Vineyard, MF and Vlassov, AV and Wang, K and Weinstein, LB and Weller, H and Weygand, DP and Whisnant, CS and Wolin,
E and Wood, MH and Yegneswaran, A and Yun, J and Zhang, B and Zhou, Z and CLEO},
Title = {Onset of asymptotic scaling in deuteron photodisintegration.},
Journal = {Physical review letters},
Volume = {94},
Number = {1},
Pages = {012301},
Year = {2005},
Month = {January},
ISSN = {0031-9007},
url = {http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000226308000024&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=47d3190e77e5a3a53558812f597b0b92},
Abstract = {We investigate the transition from the nucleon-meson to the
quark-gluon description of the strong interaction using the
photon energy dependence of the d(gamma,p)n differential
cross section for photon energies above 0.5 GeV and
center-of-mass proton angles between 30 degrees and 150
degrees. A possible signature for this transition is the
onset of cross-section s(-11) scaling with the total energy
squared, s, at some proton transverse momentum P(T). The
results show that the scaling has been reached for proton
transverse momentum above about 1.1 GeV/c. This may indicate
that the quark-gluon regime is reached above this
momentum.},
Doi = {10.1103/physrevlett.94.012301},
Key = {fds248895}
}
@article{fds248893,
Author = {Gai, M and Breskin, A and Chechik, R and Dangendorf, V and Weller,
HR},
Title = {Optical Readout Time Projection Chamber (O-TPC) for a Study
of Oxygen Formation In Stellar Helium Burning},
Journal = {Acta Phys. Hungarica A - Heavy Ion Physics},
Volume = {25},
Number = {2-4},
Pages = {461-468},
Publisher = {Springer Science and Business Media LLC},
Year = {2006},
url = {http://dx.doi.org/10.1556/aph.25.2006.2-4.37},
Doi = {10.1556/aph.25.2006.2-4.37},
Key = {fds248893}
}
@article{fds248902,
Author = {Savran, D and Muller, S and Zilges, A and Babilon, M and Ahmed, MW and Kelley, JH and Tonchev, A and Tornow, K and Weller, HR and Pietralla, N and Li, J and Pinayev, IV and Wu, YK},
Title = {Parity Assignments in 172,174Yb using Polarized photons and
the K Quantum Number in Rare Earth Nuclei},
Journal = {Physical Review C},
Volume = {71},
Number = {3},
Pages = {034304},
Publisher = {American Physical Society (APS)},
Year = {2005},
Month = {Winter},
ISSN = {0556-2813},
url = {http://hdl.handle.net/10161/11080 Duke open
access},
Abstract = {The 100% polarized photon beam at the high intensity γ ray
source (HIγS) at Duke University has been used to determine
the parity of six dipole excitations between 2.9 and 3.6 MeV
in the deformed nuclei 172,174Yb in photon scattering
(γ→, γ′) experiments. The measured parities are
compared with previous assignments based on the K quantum
number that had been assigned in nuclear resonance
fluorescence (NRF) experiments by using the Alaga rules. A
systematic survey of the relation between γ-decay branching
ratios and parity quantum numbers is given for the rare
earth nuclei. © 2005 The American Physical
Society.},
Doi = {10.1103/PhysRevC.71.034304},
Key = {fds248902}
}
@article{fds249001,
Author = {Fransen, C and Pietralla, N and Tonchev, AP and Ahmed, MW and Chen, J and Feldman, G and Kneissl, U and Li, J and Litvinenko, V and Perdue, B and Pinayev, IV and Pitz, HH and Prior, RM and Sabourov, K and Spraker, M and Tornow, W and Weller, HR and Werner, V and Wu, YK and Yates,
SW},
Title = {Parity Assignments to Strong Dipole Excitations of 92Zr and
96Mo},
Journal = {Physical Review},
Volume = {C70},
Number = {4},
Pages = {044317},
Publisher = {American Physical Society (APS)},
Year = {2004},
Month = {December},
ISSN = {0556-2813},
url = {http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000225043100035&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=47d3190e77e5a3a53558812f597b0b92},
Abstract = {Parity quantum numbers for dipole-excited states of the
nuclei 92Zr and 96Mo have been determined from azimuthal
asymmetries of nuclear resonance fluorescence intensities
induced with the linearly polarized photon beam of the HIγS
facility at Duke University. This parity information is
crucial for an interpretation of the investigated J= 1
states as two-phonon excitations originating from
inhomogeneous phonon coupling.},
Doi = {10.1103/PhysRevC.70.044317},
Key = {fds249001}
}
@conference{fds249047,
Author = {Pietralla, N and Weller, HR and Litvinenko, VN and Ahmed, MW and Tonchev, AP},
Title = {Parity measurements of nuclear dipole excitations using
FEL-generated γ-rays at HIγS},
Journal = {Nuclear Instruments and Methods in Physics Research, Section
A: Accelerators, Spectrometers, Detectors and Associated
Equipment},
Volume = {483},
Number = {1-2},
Pages = {556-559},
Publisher = {Elsevier BV},
Year = {2002},
Month = {Summer},
ISSN = {0168-9002},
url = {http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000176527000109&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=47d3190e77e5a3a53558812f597b0b92},
Abstract = {First Nuclear Resonance Fluorescence (NRF) experiments were
performed at the storage ring FEL-driven High Intensity
Gamma Source (HIγS) at the DFELL. Azimuthal NRF intensity
ratios were measured around the polarized HIγS beam.
Electric character was deduced for 18 dipole excitations in
138Ba [1]. The measurements demonstrate the superior
performance of the HIγS facility in making such
measurements. We report here on the performance of this
set-up. © 2002 Elsevier Science B.V. All rights
reserved.},
Doi = {10.1016/S0168-9002(02)00381-9},
Key = {fds249047}
}
@article{fds249046,
Author = {Pietralla, N and Berant, Z and Litvinenko, VN and Hartmann, S and Mikhailov, FF and Pinayev, IV and Swift, G and Ahmed, MW and Kelley, JH and Nelson, SO and Prior, RM and Sabourov, K and Tonchev, AP and Weller,
HR},
Title = {Parity Measurements of Nuclear Levels using a
Free-Electron-Laser Generated Gamma-Ray Beam},
Journal = {Physical Review Letters},
Volume = {88},
Number = {1},
Pages = {012502},
Publisher = {American Physical Society},
Year = {2002},
Month = {January},
ISSN = {0031-9007},
url = {http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000173124800017&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=47d3190e77e5a3a53558812f597b0b92},
Abstract = {aps.org},
Doi = {10.1103/physrevlett.88.012502},
Key = {fds249046}
}
@article{fds249019,
Author = {Battaglieri, M and Weller, TCLASCIHR},
Title = {Photoproduction of the omega Meson on the Proton at Large
Momentum Transfer},
Journal = {Physical Review Letters},
Volume = {90},
Number = {2},
Pages = {022002},
Publisher = {American Physical Society},
Year = {2003},
ISSN = {0031-9007},
url = {http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000180444200010&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=47d3190e77e5a3a53558812f597b0b92},
Abstract = {The differential cross section, dsigma/dt, for omega meson
exclusive photoproduction on the proton above the resonance
region (2.6<W<2.9 GeV) was measured up to a momentum
transfer -t=5 GeV2 using the CLAS detector at Jefferson
Laboratory. The omega channel was identified by detecting a
proton and pi(+) in the final state and using the missing
mass technique. While the low momentum transfer region shows
the typical diffractive pattern expected from Pomeron and
Reggeon exchange, at large -t the differential cross section
has a flat behavior. This feature can be explained by
introducing quark interchange processes in addition to the
QCD-inspired two-gluon exchange.},
Doi = {10.1103/physrevlett.90.022002},
Key = {fds249019}
}
@article{fds249033,
Author = {Anciant, E and Auger, T and Audit, G and Battaglieri, M and Laget, JM and Marchand, C and Adams, GS and Amaryan, MJ and Anghinolfi, M and Armstrong, D and Asavapibhop, B and Avakian, H and Barrow, S and Beard,
K and Bektasoglu, M and Berman, BL and Bianchi, N and Biselli, A and Boiarinov, S and Briscoe, WJ and Brooks, WK and Burkert, VD and Calarco,
JR and Capitani, G and Carman, DS and Carnahan, B and Cetina, C and Cole,
PL and Coleman, A and Connelly, J and Cords, D and Corvisiero, P and Crabb,
D and Crannell, H and Cummings, J and Degtyarneko, PV and Dennis, LC and de
Sanctis, E and de Vita, R and Dhuga, KS and Djalali, C and Dodge, GE and Doughty, D and Dragovitsch, P and Dugger, M and Dytman, S and Efremenko,
YV and Egiyan, H and Egiyan, KS and Elouadrhiri, L and Farhi, L and Feuerbach, RJ and Ficenec, J and Forest, TA and Freyberger, A and Funsten, H and Gai, M and Garçon, M and Gilfoyle, GP and Giovanetti, K and Girard, P and Griffioen, KA and Guidal, M and Gyurjyan, V and Heddle, D and Hersman, FW and Hicks, K and Hicks, RS and Holtrop, M and Hyde-Wright,
CE and Ito, MM and Jenkins, D and Joo, K and Khandaker, M and Kim, DH and Kim,
W and Klein, A and Klein, FJ and Klusman, M and Kossov, M and Kramer, LH and Kuhn, SE and Lawrence, D and Longhi, A and Loukachine, K and Magahiz, R and Major, RW and Manak, JJ and Matthews, SK and McAleer, S and McCarthy, J and McCormick, K and McNabb, JWC and Mecking, BA and Mestayer, MD and Meyer,
CA and Minehart, R and Miskimen, R and Muccifora, V and Mueller,
J},
Title = {Photoproduction of φ (1020) mesons on the proton at large
momentum transfer},
Journal = {Physical Review Letters},
Volume = {85},
Number = {22},
Pages = {4682-4686},
Publisher = {American Physical Society (APS)},
Year = {2000},
Month = {November},
ISSN = {0031-9007},
url = {http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000165556600010&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=47d3190e77e5a3a53558812f597b0b92},
Abstract = {Elastic photoproduction of φ mesons from the proton was
measured for the first time up to -t = 4 GeV2. Below -t ≈
1 GeV2, the data cannot distinguish between the Pomeron
exchange and the two-gluon exchange models. Above -t ≈ 1.8
GeV2, the data ruled out the diffractive Pomeron and
strongly favored its two-gluon realization.},
Doi = {10.1103/PhysRevLett.85.4682},
Key = {fds249033}
}
@booklet{King84a,
Author = {King, SE and Roberson, NR and Weller, HR and Tilley,
DR},
Title = {Polarized and unpolarized proton capture on
deuterium},
Journal = {Physical Review C},
Volume = {30},
Number = {1},
Pages = {21-25},
Publisher = {American Physical Society (APS)},
Year = {1984},
ISSN = {0556-2813},
url = {http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:A1984SZ38100003&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=47d3190e77e5a3a53558812f597b0b92},
Abstract = {Angular distributions of cross section were measured for the
H2(p,)He3 reaction at Ex=9.83, 10.83, 12.78, 15.47, and
16.12 MeV and of analyzing power at Ex=10.83 and 16.12 MeV.
The data were fitted by expansions of Legendre and, where
appropriate, associated Legendre polynomials. The
coefficients of those fits are reported. The data at
Ex=10.83 and 16.12 MeV were also analyzed under simplifying
assumptions to extract the s=12(E 1), s=12(E 2), and s=32(E
1) transition matrix elements, where s represents the
incident channel spin. The results indicate that the data
are consistent with a 2(3)% E2 and a 3(5)% s=32(E 1)
admixture at Ex=10.83(16.12) MeV. These results are
discussed in light of other recent experiments and
calculations. © 1984 The American Physical
Society.},
Doi = {10.1103/PhysRevC.30.21},
Key = {King84a}
}
@booklet{Balbes92,
Author = {Balbes, MJ and Feldman, G and Weller, HR and Tilley,
DR},
Title = {Polarized d+3He capture into the 3/2spl fusion resonance of
5Li and the role of the tensor force.},
Journal = {Physical review. C, Nuclear physics},
Volume = {45},
Number = {2},
Pages = {R487-R491},
Publisher = {American Physical Society (APS)},
Year = {1992},
Month = {February},
ISSN = {0556-2813},
url = {http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:A1992HD25700001&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=47d3190e77e5a3a53558812f597b0b92},
Abstract = {The absolute differential cross section and analyzing powers
Ay(), Ayy(), and T20() of the He3(d,)5Li reaction have been
measured with an 800 keV deuteron beam which was stopped in
a gaseous He3 target. A transition matrix element analysis
of the data leads to two solutions, both of which indicate
the reaction proceeds predominantly through s-wave (E1)
capture, with small admixtures of M1 radiation. One solution
has predominantly 4s3/2(E1) capture strength, the other has
nearly equal capture strengths from the 2s1/2(E1) and
4s3/2(E1) transition matrix elements. Resonating group model
(RGM) calculations have been performed which favor the
solution with dominant 4s3/2(E1) capture strength. In the
RGM picture, the fusion resonance in the capture cross
section is a consequence of the tensor force, which couples
the [d+3He]J=3/2S=3/2 scattering channel to the
[p+4He]J=3/2S=1/2 scattering channel, enabling the reaction
to proceed via theS=0 (E1) transition to the ground state.
The finite tensor analyzing powers of the present experiment
serve to support this interpretation of the role of the
tensor force. © 1992 The American Physical
Society.},
Doi = {10.1103/physrevc.45.r487},
Key = {Balbes92}
}
@booklet{Balbes94,
Author = {Balbes, MJ and Riley, JC and Feldman, G and Weller, HR and Tilley,
DR},
Title = {Polarized deuteron capture by 3He and 3H at and above the
fusion resonance region.},
Journal = {Physical review. C, Nuclear physics},
Volume = {49},
Number = {2},
Pages = {912-925},
Publisher = {American Physical Society (APS)},
Year = {1994},
Month = {February},
ISSN = {0556-2813},
url = {http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:A1994MZ10300046&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=47d3190e77e5a3a53558812f597b0b92},
Abstract = {The absolute differential cross sections and vector and
tensor analyzing powers for the He3(d,)5Li and H3(d,)5He
reactions have been measured both in the j=3/2+ fusion
resonance region [Ed(lab)=0.45 MeV and Ed(lab) = 0.1 MeV,
respectively] and at Ed(lab)=8.6 MeV for several angles. In
the fusion resonance region, a transition matrix element
(TME) analysis of the observables leads to multiple
solutions for both reactions, all of which indicate that the
reactions proceed predominantly through s-wave (E1) capture,
with small admixtures of M1 or E2 radiation. One solution
for each reaction is dominated by a large (90%) 4s3/2(E1)
capture strength. Coupled-channels resonating group model
(CCRGM) calculations have been performed which favor these
solutions. In the CCRGM picture, the j=3/2+ fusion resonance
in the capture cross section is a consequence of the tensor
force, which couples the s=3/2, d+3He (or d+3H) channel to
the s=1/2, p+4He (or n+4He) channel, enabling the reactions
to proceed via the spin-independent (E1) transition to the
ground state. At Ed(lab)=8.6 MeV, a TME analysis of the
He3(d,)5Li reaction yields a single solution which has >80%
s-wave (E1) capture strength, whereas two TME solutions
exist for the H3(d,)5He reaction with 45% and 65% s-wave
(E1) capture strength. These data are also compared to the
results of the CCRGM calculations. © 1994 The American
Physical Society.},
Doi = {10.1103/physrevc.49.912},
Key = {Balbes94}
}
@article{fds249045,
Author = {Weller, HR and Balbes, MJ},
Title = {Polarized deuteron capture on 3He in the fusion
resonance region 1},
Journal = {Nuclear Instruments and Methods in Physics Research, Section
A: Accelerators, Spectrometers, Detectors and Associated
Equipment},
Volume = {402},
Number = {2-3},
Pages = {428-432},
Publisher = {Elsevier BV},
Year = {1998},
Month = {January},
ISSN = {0168-9002},
url = {http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000071718800048&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=47d3190e77e5a3a53558812f597b0b92},
Abstract = {The absolute differential cross section, σ(θ), and the
analyzing powers Ay(θ), Ayy(θ), and T20(θ) of the 3He(d,
γ)5Li reaction have been measured using an 800 keV deuteron
beam which was stopped in a gaseous 3He target. The same
quantities, with the exception of T20(θ), were measured
using a 600 keV incident deuteron beam which lost 300 keV in
the target, thus integrating over the FWHM of the fusion
resonance. A transition matrix element analysis gives two
solutions which cannot be distinguished on the basis of this
analysis alone. A coupled-channels resonating group model
calculation has been performed and is used to select the
physical solution. The results of this calculation are in
good agreement with the data if the tensor force which is
employed is reduced by a factor of 0.75 times its two-body
value. If the tensor force is turned off, the calculated
analyzing powers go to zero and the cross section is more
than an order of magnitude too small, indicating the crucial
role of the tensor force in this reaction.},
Doi = {10.1016/S0168-9002(97)00885-1},
Key = {fds249045}
}
@booklet{Weller98a,
Author = {H. R. Weller and M. J. Balbes},
Title = {Polarized deuteron capture on He-3 in the fusion resonance
region},
Journal = {Nuclear Instruments \& Methods In Physics Research Section
A-accelerators Spectrometers Detectors And Associated
Equipment},
Volume = {402},
Number = {2-3},
Pages = {428 -- 432},
Year = {1998},
Month = {January},
Key = {Weller98a}
}
@booklet{Woodworth84,
Author = {Woodworth, JG and August, RA and Roberson, NR and Tilley, DR and Weller,
HR and Jury, JW},
Title = {Polarized neutron capture into C13: Evidence for a secondary
doorway state effect},
Journal = {Physical Review C},
Volume = {29},
Number = {4},
Pages = {1186-1193},
Publisher = {American Physical Society (APS)},
Year = {1984},
Month = {January},
ISSN = {0556-2813},
url = {http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:A1984SL58600005&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=47d3190e77e5a3a53558812f597b0b92},
Abstract = {Angular distributions for the C12(n,0)C13 reaction have been
measured with neutrons corresponding to excitation energies
of 16.0, 19.2, 20.1, 20.8, and 21.8 MeV. Legendre polynomial
coefficients have been determined to second order (a3 is
small). Polarized neutron measurements were obtained at
excitation energies of 16.0, 18.6, 19.2, 20.1, 21.0, 21.8,
and 22.3 MeV. A structure seen in the coefficient of the
Legendre polynomial P2 for the C12(p,0)N13 reaction is also
seen in the present data. A secondary doorway state at 20.5
MeV with an apparent width of 0.5 MeV is suggested by
previously measured B11(d,0)C13 data. The presence of this
state provides an explanation for the energy dependence of
the cross section, the a2 coefficient, and the analyzing
power coefficient b2 in the C12(n,0)C13 data. The same model
is also able to describe the energy dependence of the cross
section and the a2 coefficient observed in the C12(p,0)N13
reaction in the region of 16 to 22 MeV. © 1984 The American
Physical Society.},
Doi = {10.1103/PhysRevC.29.1186},
Key = {Woodworth84}
}
@booklet{Wright85,
Author = {Wright, MC and Kitazawa, H and Roberson, NR and Weller, HR and Jensen,
M and Tilley, DR},
Title = {Polarized neutron capture on 13C.},
Journal = {Physical review. C, Nuclear physics},
Volume = {31},
Number = {4},
Pages = {1125-1132},
Publisher = {American Physical Society (APS)},
Year = {1985},
Month = {April},
ISSN = {0556-2813},
url = {http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:A1985AFH5500008&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=47d3190e77e5a3a53558812f597b0b92},
Abstract = {The 90°cross section yield curve for the C13(n,0) 14C
reaction has been measured from En(Ex)=5.6(13.4) to
17.0(24.0) MeV. Angular distributions of cross section and
analyzing power were measured at seven energies spanning
this excitation region. In addition, the fore-aft asymmetry
and 90°analyzing power were measured as a function of
energy from En=7.75 to 17.0 MeV. The data were compared to
direct-semidirect model calculations which included the
isovector dipole and isoscalar electric quadrupole
transitions. These comparisons indicate the presence of two
narrow M1 resonances at Ex=16.5 and 17.5 MeV and that (E2)
is less than 2% of the total capture cross section in the
energy region of this experiment. © 1985 The American
Physical Society.},
Doi = {10.1103/physrevc.31.1125},
Key = {Wright85}
}
@booklet{Weller82b,
Author = {Weller, HR and Roberson, NR and Mitev, G and Ward, L and Tilley,
DR},
Title = {Polarized neutron capture on He3 at En=9.0
MeV},
Journal = {Physical Review C},
Volume = {25},
Number = {4},
Pages = {2111-2115},
Publisher = {American Physical Society (APS)},
Year = {1982},
Month = {January},
ISSN = {0556-2813},
url = {http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:A1982NL11300039&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=47d3190e77e5a3a53558812f597b0b92},
Abstract = {A polarized neutron beam has been used to measure the
angular distribution of the analyzing power for the
He3(n,)He4 reaction at En (Ex)=9.0 (27.3) MeV. The angular
distribution of the cross section, obtained with an
unpolarized beam, is combined with these data to obtain the
bk coefficients. These coefficients are compared to the
results of a previous measurement performed for the
H3(p,)He4 reaction, and to the results of a recent continuum
shell model calculation. NUCLEAR REACTIONS He3(n,)He4,
measured () and A() at En=9.0 MeV. Compared results to
previous H3(p,)He4 measurements and to recent continuum
shell model calculations. © 1982 The American Physical
Society.},
Doi = {10.1103/PhysRevC.25.2111},
Key = {Weller82b}
}
@booklet{Schmid95,
Author = {Schmid, GJ and Chasteler, RM and Laymon, CM and Weller, HR and Prior,
RM and Tilley, DR},
Title = {Polarized proton capture by deuterium and the H2(p,γ)He3
astrophysical S factor},
Journal = {Physical Review C},
Volume = {52},
Number = {4},
Pages = {R1732-R1735},
Publisher = {American Physical Society (APS)},
Year = {1995},
Month = {January},
ISSN = {0556-2813},
url = {http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:A1995TB02000003&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=47d3190e77e5a3a53558812f597b0b92},
Abstract = {The H2(p→, γ)He3 reaction has been studied in the energy
region Ep=80-0 keV (Ec.m.=53.3-0 keV), where the quantities
measured were σ(θ,E) and Ay(θ,E). Our result for the
total H2(p,γ)He3 S factor at E=0 is S(0)=0.121±0.012 eV b
(including systematic error), which is 52% lower than the
presently accepted value. Some astrophysical aspects of this
result are discussed. We have also extracted the E1 and M1
S(E) components using our detailed angular distribution
data. These data will provide sensitive tests for three-body
calculations which include Coulomb and meson exchange
current effects. © 1995 The American Physical
Society.},
Doi = {10.1103/PhysRevC.52.R1732},
Key = {Schmid95}
}
@booklet{Turner80,
Author = {Turner, JD and Roberson, NR and Wender, SA and Weller, HR and Tilley,
DR},
Title = {Polarized proton capture on C13},
Journal = {Physical Review C},
Volume = {21},
Number = {2},
Pages = {525-533},
Publisher = {American Physical Society (APS)},
Year = {1980},
Month = {January},
ISSN = {0556-2813},
url = {http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:A1980JE64300008&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=47d3190e77e5a3a53558812f597b0b92},
Abstract = {The 90°yield curves for the C13(p→,γ0)N14 and
C13(p→,γ1)N14 reactions have been measured in 200 keV
steps for Ep=6.25 to 13.6 MeV and in 100 keV steps for
Ep=13.6 to 17.0 MeV. In addition, 50 keV step data were
obtained for Ep of 12.6 to 14.55 MeV. Angular distributions
of both the cross section and the analyzing power were also
obtained for these two reactions at twelve energies which
span the giant dipole energy region. The cross section was
measured at nine angles between 30°and 154°while the
analyzing power was measured at seven angles between 42°and
142°. These data were used to obtain the complex E1 and E2
transition matrix elements in the case of C13(p→,γ1)N14.
The results are compared to a direct-semidirect calculation.
It is found that there is little justification in
introducing E2 amplitudes other than a pure direct E2 term.
NUCLEAR REACTIONS C13(p→,γ0), C13(p→,γ1) measured
σ(θ) and A(θ), Ep=8.05-15.5 MeV. C13(p,γ0), C13(p,γ1)
measured σ(90°), Ep=6.24-17.0 MeV. Deduced E1 and E2
T-matrix amplitudes and phases. Compared to model
calculations. © 1980 The American Physical
Society.},
Doi = {10.1103/PhysRevC.21.525},
Key = {Turner80}
}
@booklet{Cameron80,
Author = {Cameron, CP and Ledford, RD and Potokar, M and Rickel, DG and Roberson,
NR and Weller, HR and Tilley, DR},
Title = {Polarized proton capture on Si30},
Journal = {Physical Review C},
Volume = {22},
Number = {2},
Pages = {397-407},
Publisher = {American Physical Society (APS)},
Year = {1980},
Month = {January},
ISSN = {0556-2813},
url = {http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:A1980KE55500007&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=47d3190e77e5a3a53558812f597b0b92},
Abstract = {The 90°yield curves for the Si30(p, 0)P31 and Si30(p, 1)P31
reactions have been measured for Ep=5.0 to 28.0 MeV. Angular
distributions of cross section and analyzing power were
obtained at twelve energies between Ep=6.36 and 14.45 MeV.
The cross sections were measured at nine angles between
30°and 154°, the analyzing power at seven angles between
42°and 142°. For the case of (p, 0) the complex T-matrix
elements were extracted, assuming that the angular
distributions are governed by coherent E1 and E2 processes.
Two (E2) yield curves are obtained, one of which exhausts
9-12% of the T=0 E2 energy weighted sum rule while the other
exhausts 21-31%. The results are compared to
direct-semidirect model calculations which suggest that the
larger E2 cross sections are the physical solutions. NUCLEAR
REACTIONS Si30(p, 0) Si30(p, 1) measured () and A(), Ep=6.4
to 15.0 MeV. Si30(p, 0) Si30(p, 1) measured (90°), Ep=5.0
to 28.0 MeV. Deduced E1 and E2 T-matrix amplitudes and
phases. Compared to model calculations. © 1980 The American
Physical Society.},
Doi = {10.1103/PhysRevC.22.397},
Key = {Cameron80}
}
@article{fds249042,
Author = {Weller, HR},
Title = {Polarized radiative capture studies of the 3-body system
below 80 keV},
Journal = {Nuclear Physics A},
Volume = {631},
Pages = {627-632},
Publisher = {Elsevier BV},
Year = {1998},
Month = {March},
ISSN = {0375-9474},
url = {http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000073079900071&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=47d3190e77e5a3a53558812f597b0b92},
Abstract = {Advances in both experimental and theoretical techniques are
now making it possible to study three-body capture reactions
below 80 keV in considerable detail. Measurements of the
energy dependence of the cross section for the D(p,γ)3He
reaction below 80 keV indicate an astrophysical S-factor
which is 34% smaller than the "accepted" value.1
Furthermore, our detailed measurements1 of cross section,
vector and tensor analyzing powers (obtained using the
p(d,γ)3He reaction), and gamma-ray polarizations as a
function of energy and angle have been compared to the
results of new 3-body calculations by Viviani et al.2 which
include Coulomb, MEC and Δ-isobar effects. Dramatic effects
of the tensor force and the associated two-body currents are
observed in the analyzing power data for the first time. We
have recently measured the vector analyzing power for the
p(d,γ)3He reaction. This observable is very sensitive to
the presence of MECs, changing from -0.13 to -0.01 at 90°,
for example, when MEC effects are and are not included in
the calculations, respectively. New precision measurements
of tensor analyzing power (T20(90°)) have been used to
extract the value of the aymptotic D-to-S state ratio for
3He, taking advantage of the asymptotic nature of the
capture reaction at these low energies.3 Presently, the
discrepancies between state-of-the-art calculations and our
data are significant, suggesting that additional physics,
such as 3-body current effects, need to be taken into
account.},
Doi = {10.1016/s0375-9474(98)00080-3},
Key = {fds249042}
}
@booklet{Weller98,
Author = {H. R. Weller},
Title = {Polarized radiative capture studies of the 3-body system
below 80 keV},
Journal = {Nuclear Physics A},
Volume = {631},
Pages = {627C -- 632C},
Year = {1998},
Month = {March},
Key = {Weller98}
}
@booklet{Drake83,
Author = {Drake, DM and Roberson, NR and Wender, SA and Weller,
HR},
Title = {Polarized triton capture on 12C},
Journal = {Nuclear Physics, Section A},
Volume = {410},
Number = {3},
Pages = {429-440},
Publisher = {Elsevier BV},
Year = {1983},
Month = {December},
ISSN = {0375-9474},
url = {http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:A1983RV31800005&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=47d3190e77e5a3a53558812f597b0b92},
Abstract = {The 90° cross section for the 12C(t, γ0)15N reaction was
measured for Et from 2.3 to 6.5 MeV. Polarized and
unpolarized angular distribution data were obtained for E1 =
2.27, 3.24 and 5.95 MeV. The resulting a2 and b2
coefficients are compared to the predictions of a direct
capture (cluster) model. This model gives a reasonably good
description of the qualitative behavior observed in the
experiment, although it predicts an absolute cross section
which is an order of magnitude smaller than any observed
cross section. © 1983.},
Doi = {10.1016/0375-9474(83)90635-8},
Key = {Drake83}
}
@article{fds248879,
Author = {Stave, S and al, HRWE},
Title = {Preciese Determination of Total Absolute Gamma Ray Intensity
at HIGS},
Journal = {Bulletin of the APS},
Volume = {52},
Number = {9},
Pages = {99},
Publisher = {The American Physical Society},
Year = {2007},
Key = {fds248879}
}
@booklet{Lehman95,
Author = {Lehman, DR and Weller, HR and Whitton, RM},
Title = {Production of e1 radiation in the h-2(d,gamma)he-4 reaction
at very-low energies},
Journal = {Few-body Systems},
Volume = {18},
Number = {2-4},
Pages = {147-157},
Year = {1995},
Key = {Lehman95}
}
@booklet{Weller81,
Author = {Weller, HR and Roberson, NR},
Title = {Proton and neutron radiative capture},
Journal = {IEEE Transactions on Nuclear Science},
Volume = {28},
Number = {2},
Pages = {1268-1272},
Publisher = {Institute of Electrical and Electronics Engineers
(IEEE)},
Year = {1981},
Month = {January},
ISSN = {0018-9499},
url = {http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:A1981LM27700065&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=47d3190e77e5a3a53558812f597b0b92},
Doi = {10.1109/TNS.1981.4331394},
Key = {Weller81}
}
@booklet{Weller80a,
Author = {WELLER, HR},
Title = {PROTON AND NEUTRON RADIATIVE-CAPTURE},
Journal = {BULLETIN OF THE AMERICAN PHYSICAL SOCIETY},
Volume = {25},
Number = {7},
Pages = {775-776},
Year = {1980},
ISSN = {0003-0503},
url = {http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:A1980KH80600244&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=47d3190e77e5a3a53558812f597b0b92},
Key = {Weller80a}
}
@booklet{Wright82,
Author = {Wright, MC and Roberson, NR and Weller, HR and Tilley, DR and Halderson,
D},
Title = {Proton capture in the 19 MeV region of C12},
Journal = {Physical Review C},
Volume = {25},
Number = {5},
Pages = {2823-2826},
Publisher = {American Physical Society (APS)},
Year = {1982},
Month = {January},
ISSN = {0556-2813},
url = {http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:A1982NQ07100070&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=47d3190e77e5a3a53558812f597b0b92},
Abstract = {The 60°and 90°yield curves for the B11(p,)C12 reaction
have been measured for Ep=2.9 to 4.6 MeV in 100 keV steps
for rays leading to the ground and first and third excited
states. Recent (,) data suggest the existence of an isospin
mixed doublet near 19.5 MeV in C12. A continuum shell model
calculation which successfully describes the (,) data
predicts an observable effect in the 3 channel. However, no
evidence for these states is found in our 3 data. NUCLEAR
REACTIONS B11(p,)C12; measured (Ep), Ep=2.9 to 4.6 MeV,
=60°, 90°, for 0, 1, 3. Compared 3 data to continuum shell
model calculations. No evidence for 19.25 and/or 19.65 MeV
states is found. © 1982 The American Physical
Society.},
Doi = {10.1103/PhysRevC.25.2823},
Key = {Wright82}
}
@booklet{Weller82a,
Author = {Weller, HR and Hasan, H and Manglos, S and Mitev, G and Roberson, NR and Blatt, SL and Hausman, HJ and Seyler, RG and Boyd, RN and Donoghue, TR and Kovash, MA and Bacher, AD and Foster, CC},
Title = {Proton capture to bound and unbound states of
C12},
Journal = {Physical Review C},
Volume = {25},
Number = {6},
Pages = {2921-2934},
Publisher = {American Physical Society (APS)},
Year = {1982},
Month = {January},
ISSN = {0556-2813},
url = {http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:A1982NU34500007&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=47d3190e77e5a3a53558812f597b0b92},
Abstract = {The cross section for the B11(p,)C12 reaction leading to the
19 MeV region of C12 has been measured at lab=60°for Ep of
23 to 60 MeV. Angular distributions of cross sections and
analyzing powers were measured at Ep=28.7 MeV. The
B11(p,0,1)C12 cross sections were measured at lab=60°for Ep
of 8 to 60 MeV, with angular distribution measurements at Ep
of 14.5, 17.0, and 28.7 MeV. The results are compared to
direct capture calculations which, in the case of
transitions to the 19 MeV region, treat the final state as
both a bound and unbound state. The procedures for
calculating direct capture to unbound final states are
described. The possible existence of a giant resonance state
is discussed. NUCLEAR REACTIONS B11(p,)C12; measured (E) for
transitions to the 19 MeV region of C12 at =60°for Ep of 23
to 60 MeV, measured() and A() at 28.7 MeV for these
transitions. B11(p,0,1)C12, measured (60°) for Ep of 8 to
60 MeV,() at 14.5, 17.0, and 28.7 MeV. Results are compared
to direct capture calculations treating the final state both
as bound and unbound. Procedures for calculating direct
capture to unbound final states are described. The possible
existence of giant resonance states is discussed. © 1982
The American Physical Society.},
Doi = {10.1103/PhysRevC.25.2921},
Key = {Weller82a}
}
@booklet{Manglos80,
Author = {MANGLOS, S and WELLER, HR and ROBERSON, NR and TILLEY, DR and WENDER,
SA and BLATT, SL},
Title = {PROTON CAPTURE TO EXCITED-STATES OF BE-8 AND
N-14},
Journal = {BULLETIN OF THE AMERICAN PHYSICAL SOCIETY},
Volume = {25},
Number = {4},
Pages = {603-603},
Year = {1980},
ISSN = {0003-0503},
url = {http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:A1980JM68800805&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=47d3190e77e5a3a53558812f597b0b92},
Key = {Manglos80}
}
@article{fds248882,
Author = {Denizli, H and Weller, TCLASCIH},
Title = {Q^2 dependence of the S11(1535) photocoupling and evidence
for a P-wave resonance in eta electroproduction},
Journal = {Physical Review C},
Volume = {76},
Number = {1},
Pages = {015204},
Publisher = {The American Physical Society},
Year = {2007},
ISSN = {0556-2813},
url = {http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000248542400073&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=47d3190e77e5a3a53558812f597b0b92},
Abstract = {New cross sections for the reaction ep→e'ηp are reported
for total center-of-mass energy W=1.5-2.3 GeV and invariant
squared momentum transfer Q2=0.13-3.3 GeV2. This large
kinematic range allows the extraction of new information
about response functions, photocouplings, and ηN coupling
strengths of baryon resonances. A sharp structure is seen at
W~1.7 GeV. The shape of the differential cross section is
indicative of the presence of a P-wave resonance that
persists to high Q2. Improved values are derived for the
photocoupling amplitude for the S11(1535) resonance. The new
data greatly expand the Q2 range covered, and an
interpretation of all data with a consistent parametrization
is provided. © 2007 The American Physical
Society.},
Doi = {10.1103/PhysRevC.76.015204},
Key = {fds248882}
}
@booklet{Williams94,
Author = {Williams, JZ and Feldman, G and Weller, HR and Tilley,
DR},
Title = {Radiative capture of polarized deuterons by 6Li
and the D-state of 8Be},
Journal = {Nuclear Physics, Section A},
Volume = {577},
Number = {3-4},
Pages = {653-673},
Publisher = {Elsevier BV},
Year = {1994},
Month = {September},
ISSN = {0375-9474},
url = {http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:A1994PJ06400009&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=47d3190e77e5a3a53558812f597b0b92},
Abstract = {Measurements of angular distributions of the cross section,
vector and tensor analyzing powers have been performed at
Ed(lab)= 9.0 MeV and 2.0 MeV for the 6Li(d, γ)8Be reaction.
Excitation functions were also measured for Ed(lab) =
7.0-14.0 MeV at θ{symbol}lab = 130°. Transition matrix
element analyses of the angular distributions were performed
at both energies. The results of these analyses at Ed(lab)=
9.0 MeV show the presence of 13-21% E1 radiation in addition
to the expected dominant E2 radiation. At Ed(lab)= 2.0 MeV
the reaction has a dominant E1 contribution comprising about
60% of the cross section. The largest E1 component at both
energies is the isospin-forbidden E1 transition comprising
10% of the cross section at Ed(lab)= 9.0 MeV and 40% of the
cross section at Ed(lab)= 2.0 MeV. The angular distributions
at Ed(lab)= 9.0 MeV were compared to a simple direct capture
(DC) calculation, leading to a D-state probability of PD =
1.5% for the 6Li + d component of the D-state in the ground
state of 8Be. A multichannel resonating group model (MCRGM)
calculation was also performed and compared to the data. The
MCRGM used an effective nucleon-nucleon two-body force and
predicts a D-state probability of PD = 0.3% for the 6Li + d
component of the D-state in the ground state of 8Be. ©
1994.},
Doi = {10.1016/0375-9474(94)90938-5},
Key = {Williams94}
}
@booklet{Schmid93,
Author = {Schmid, GJ and Chasteler, RM and Weller, HR and Tilley,
DR},
Title = {Radiative capture of polarized deuterons on
7Li.},
Journal = {Physical review. C, Nuclear physics},
Volume = {48},
Number = {1},
Pages = {441-444},
Publisher = {American Physical Society (APS)},
Year = {1993},
Month = {July},
ISSN = {0556-2813},
url = {http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:A1993LL89300055&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=47d3190e77e5a3a53558812f597b0b92},
Abstract = {The differential cross section σ(θ), the vector analyzing
power Ay(θ), and the tensor analyzing power Ayy(θ) have
been measured for the Li7(d→,γ)9Be reaction at Ed(lab)
=6.0 MeV. The angle-integrated cross section at this energy
is estimated to be 4.8±1.0 μb. A transition matrix element
analysis has been performed on the data. In addition, a
direct-capture calculation has been performed, and is
compared to the data. © 1993 The American Physical
Society.},
Doi = {10.1103/physrevc.48.441},
Key = {Schmid93}
}
@booklet{Riley89,
Author = {Riley, JC and Weller, HR and Tilley, DR},
Title = {Radiative capture of tensor and vector polarized deuterons
by 3H at 400 keV.},
Journal = {Physical review. C, Nuclear physics},
Volume = {40},
Number = {3},
Pages = {1517-1519},
Publisher = {American Physical Society (APS)},
Year = {1989},
Month = {September},
ISSN = {0556-2813},
url = {http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:A1989AP28300050&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=47d3190e77e5a3a53558812f597b0b92},
Abstract = {The H3(d,)5He reaction observables (), Ay(), and Ayy() have
been measured at seven angles with a 400 keV incident
deuteron beam which was stopped in a tritiated titanium
target. The data have been fit using a transition matrix
element analysis. This analysis indicates that the cross
section is primarily channel spin S=(3/2 E1 radiation, with
approximately 2.5% S=(1/2 E1 radiation and 2.5% M1
radiation. © 1989 The American Physical
Society.},
Doi = {10.1103/physrevc.40.1517},
Key = {Riley89}
}
@article{fds248900,
Author = {Weller, STEAIH},
Title = {Radiative Decays of the Sigma-0(1385) and Lamda (1520)
Hyperons},
Journal = {Physical Review C},
Volume = {71},
Number = {5},
Pages = {054609},
Publisher = {The American Physical Society},
Year = {2005},
Month = {Winter},
ISSN = {0556-2813},
url = {http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000229440200046&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=47d3190e77e5a3a53558812f597b0b92},
Abstract = {The electromagnetic decays of the Σ0(1385) and Λ(1520)
hyperons were studied in photon-induced reactions
γp→K+Λ(1116) γ in the Large Acceptance Spectrometer
detector at the Thomas Jefferson National Accelerator
Facility. We report the first observation of the radiative
decay of the Σ0(1385) and a measurement of the Λ(1520)
radiative decay width. For the Σ0(1385)→Λ(1116)γ
transition, we measured a partial width of
479±120(stat)-100+81(sys)keV, larger than all of the
existing model predictions. For the Λ(1520)→Λ(1116) γ
transition, we obtained a partial width of 167±43(stat)-
12+26(sys)keV. © 2005 The American Physical
Society.},
Doi = {10.1103/PhysRevC.71.054609},
Key = {fds248900}
}
@booklet{August85,
Author = {August, RA and Weller, HR and Tilley, DR},
Title = {Radiative deuteron capture into the secondary doorway state
of 13C.},
Journal = {Physical review. C, Nuclear physics},
Volume = {32},
Number = {4},
Pages = {1420-1423},
Publisher = {American Physical Society (APS)},
Year = {1985},
Month = {October},
ISSN = {0556-2813},
url = {http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:A1985ASB4200034&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=47d3190e77e5a3a53558812f597b0b92},
Abstract = {Measurements were made of the 90°cross sections of the
B11(d,0) 13C reaction in the energy region of the previously
reported secondary doorway state in C13. Angular
distribution data of the cross section, vector analyzing
power, and tensor analyzing power T20(0) were measured over
the same energy region. The current data were combined with
the neutron capture data of the previous study, and both
data sets were analyzed simultaneously using a secondary
doorway state formalism. © 1985 The American Physical
Society.},
Doi = {10.1103/physrevc.32.1420},
Key = {August85}
}
@booklet{Mitev86,
Author = {Mitev, G and Colby, P and Roberson, NR and Weller, HR and Tilley,
DR},
Title = {Radiative neutron capture by deuterium.},
Journal = {Physical review. C, Nuclear physics},
Volume = {34},
Number = {2},
Pages = {389-400},
Publisher = {American Physical Society (APS)},
Year = {1986},
Month = {August},
ISSN = {0556-2813},
url = {http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:A1986D590500004&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=47d3190e77e5a3a53558812f597b0b92},
Abstract = {The 2H(n,)3H reaction has been studied with polarized and
unpolarized neutrons of energies ranging from 9 to 14 MeV.
Angular distributions of cross section were measured at
En(lab)=9.0, 10.8, and 14.0 MeV, (90°) was measured at 6.85
MeV, and an analyzing-power angular distribution was
measured at 9.0 MeV. The results for (theta) agree with the
existing H3(,n)2H data after detailed balancing. The
resulting He3(,p)/3H(,n) ratio for 90°cross sections is 1.1
0.15 down to Ex=10.8 MeV. The T-matrix analysis of the data
indicates 3% for the E2 contribution to the capture cross
section comparable to that found earlier for H2(p,)3He and
in contrast to the predictions [n(E2)/p(E2)=1/25] of a
two-body direct-capture calculation. © 1986 The American
Physical Society.},
Doi = {10.1103/physrevc.34.389},
Key = {Mitev86}
}
@booklet{Weller85,
Author = {H. R. Weller},
Title = {Radiative-capture in few nucleon systems},
Journal = {Aip Conference Proceedings},
Number = {125},
Pages = {470 -- 482},
Year = {1985},
Key = {Weller85}
}
@booklet{Ward80,
Author = {WARD, L and TILLEY, DR and WENDER, SA and ROBERSON, NR and WELLER, HR and SKOPIK, D},
Title = {RADIATIVE-CAPTURE OF NEUTRONS BY HE-3},
Journal = {BULLETIN OF THE AMERICAN PHYSICAL SOCIETY},
Volume = {25},
Number = {4},
Pages = {576-576},
Year = {1980},
ISSN = {0003-0503},
url = {http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:A1980JM68800637&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=47d3190e77e5a3a53558812f597b0b92},
Key = {Ward80}
}
@booklet{King81,
Author = {KING, SE and POTOKAR, M and ROBERSON, NR and WELLER, HR and WENDER, SA and TILLEY, DR},
Title = {RADIATIVE-CAPTURE OF NEUTRONS BY PB-208},
Journal = {BULLETIN OF THE AMERICAN PHYSICAL SOCIETY},
Volume = {26},
Number = {4},
Pages = {590-590},
Year = {1981},
ISSN = {0003-0503},
url = {http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:A1981LG91200386&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=47d3190e77e5a3a53558812f597b0b92},
Key = {King81}
}
@booklet{Jensen80,
Author = {JENSEN, MJ and TILLEY, DR and WENDER, SA and ROBERSON, NR and WELLER,
HR},
Title = {RADIATIVE-CAPTURE OF POLARIZED NEUTRONS BY
C-13},
Journal = {BULLETIN OF THE AMERICAN PHYSICAL SOCIETY},
Volume = {25},
Number = {4},
Pages = {603-603},
Year = {1980},
ISSN = {0003-0503},
url = {http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:A1980JM68800806&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=47d3190e77e5a3a53558812f597b0b92},
Key = {Jensen80}
}
@article{fds249029,
Author = {Nesaraja, CD and Brune, CR and Crowley, BT and Kelley, JH and Nelson,
SO and Prior, RM and Sabourov, K and Tilley, DR and Tonchev, A and Weller,
HR},
Title = {Ratio of S Factors for (p,ƒ×) Reactions on 12C and 13C at
Astrophysically Relevant Energies},
Journal = {Phys. Rev.},
Volume = {C64},
Number = {6},
Pages = {065804},
Year = {2001},
ISSN = {0556-2813},
url = {http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000172733000063&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=47d3190e77e5a3a53558812f597b0b92},
Abstract = {We present measurements of the 12C(p, γ0)13N/13C(p, γ0)14N
S factor ratio at Ep=160 keV. The overall result of
0.33±0.03 is in good agreement with the value of this ratio
obtained from previous experimental values of the S factors
for the 12C(p, γ0) 13N and the 13C(p, γ0) 14N reactions. A
value for the total S factor ratio of S[12C(p,
γtotal)]/S[13C(p, γtotal)] = 0.24±0.03 is computed by
correcting the 13C(p, γ0) S factor for transitions to the
other intermediate states. The direct + resonance model
calculation of this ratio and the impact on the CNO cycle
are also explored.},
Doi = {10.1103/PhysRevC.64.0658XX},
Key = {fds249029}
}
@article{fds249020,
Author = {Moss, CE and Frankle, CM and Litvinenko, VN and Weller,
HR},
Title = {Recent results using the high intensity γ-ray source
facility},
Journal = {Nuclear Instruments and Methods in Physics Research, Section
A: Accelerators, Spectrometers, Detectors and Associated
Equipment},
Volume = {505},
Number = {1-2},
Pages = {374-376},
Publisher = {Elsevier BV},
Year = {2003},
Month = {June},
ISSN = {0168-9002},
url = {http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000183713700086&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=47d3190e77e5a3a53558812f597b0b92},
Abstract = {We describe the high intensity γ-ray source, which produces
nearly monoenergetic γ-ray beams with energies ranging from
2 to 58 MeV, intensities of 105-5 × 108 γ/s, and 100%
linear polarization. Upgrades of the facility are in
progress to increase the energy range and intensity. To
illustrate some of the present capabilities of the facility,
we describe the measurement of total photon attenuation
cross-sections to ±0.5% in the energy range 3.451-14 MeV.
© 2003 Elsevier Science B.V. All rights
reserved.},
Doi = {10.1016/S0168-9002(03)01100-8},
Key = {fds249020}
}
@booklet{Mitev84,
Author = {Mitev, G and Weller, HR and Tilley, DR},
Title = {Relative response of the deuterated liquid scintillator
NE232 to tritons},
Journal = {Nuclear Instruments and Methods In Physics
Research},
Volume = {224},
Number = {1-2},
Pages = {324-326},
Publisher = {Elsevier BV},
Year = {1984},
Month = {July},
ISSN = {0168-9002},
url = {http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:A1984TE50000046&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=47d3190e77e5a3a53558812f597b0b92},
Abstract = {Light output for recoiling tritons at six energies from 2.3
to 4.1 MeV relative to recoiling 6.1 MeV deuterons has been
measured and compared to a semi-empirical calculation. ©
1984.},
Doi = {10.1016/0167-5087(84)90486-1},
Key = {Mitev84}
}
@article{fds152674,
Author = {Henry R. Weller et al.},
Title = {Research Opportunities at the upgraded HIGS
Facility},
Journal = {Progress in Nuclear and Particle Physics},
Volume = {62},
Pages = {257-303},
Publisher = {Elsevier},
Year = {2008},
url = {http://elsevier.com/locate/ppnp},
Key = {fds152674}
}
@article{fds248875,
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 = {fds248875}
}
@book{fds139609,
Author = {H.R. Weller},
Title = {Research Opportunities at the Upgraded HIGS
Facility},
Booktitle = {Chiral Dynamics 2006},
Publisher = {World Scientific Publishing Co.},
Address = {27 Warren St., Suite 401, Hackensack, NJ},
Editor = {M. Ahmed and H. Gao and B. Holstein and H. R. Weller},
Year = {2007},
Key = {fds139609}
}
@booklet{Wijekumar91,
Author = {Wijekumar, V and Williams, JZ and Feldman, G and Weller, HR and Tilley,
DR},
Title = {Resolution of the twofold ambiguity in the E1 capture
amplitudes for the 13C(p},
Journal = {Physical review. C, Nuclear physics},
Volume = {43},
Number = {3},
Pages = {1363-1366},
Publisher = {American Physical Society (APS)},
Year = {1991},
Month = {March},
ISSN = {0556-2813},
url = {http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:A1991FA99000048&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=47d3190e77e5a3a53558812f597b0b92},
Abstract = {The analysis of the cross section and analyzing power data
of the 13C(p,0)14N reaction leads to two solutions for the
E1 amplitudes and phases which contribute in the region of
the giant dipole resonance. One of these solutions indicates
that the reaction proceeds predominantly via d-wave capture
while the other corresponds to predominant s-wave capture.
In the present work, we have used the interference between
the Ep=3.11 MeV M1 resonance and the E1-dominated background
to determine which of the two off-resonance E1 solutions is
the correct (physical) one. The results show that the
dominant d-wave capture solution is the correct one in the
region of this resonance, demonstrating that the low-energy
off-resonance E1 strength has the same (dominant d-wave)
structure as that expected from the giant dipole resonance.
© 1991 The American Physical Society.},
Doi = {10.1103/physrevc.43.1363},
Key = {Wijekumar91}
}
@booklet{Manglos81,
Author = {Manglos, S and Roberson, NR and Weller, HR and Tilley,
DR},
Title = {Search for a giant resonance built on the 16.6-MeV state in
Be8},
Journal = {Physical Review C},
Volume = {24},
Number = {5},
Pages = {2378-2381},
Publisher = {American Physical Society (APS)},
Year = {1981},
Month = {January},
ISSN = {0556-2813},
url = {http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:A1981MS03500065&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=47d3190e77e5a3a53558812f597b0b92},
Abstract = {The yield curve for proton capture on Li7, leading to the
region of the isospin-mixed pair of states at Ex=16.63 and
16.92 MeV in Be8, has been measured as a function of
bombarding energy from 4 to 30 MeV. A direct capture model
provides a good description of the data. NUCLEAR REACTIONS
Li7(p,)Be*82; measured (E,) leading to the 16.6-16.9-MeV
states for Ep=11.5 to 30 MeV by -ray detection. Measured (E)
for Ep=4 to 13 MeV by detection of 2. Natural target.
Compared to direct capture model. © 1981 The American
Physical Society.},
Doi = {10.1103/PhysRevC.24.2378},
Key = {Manglos81}
}
@article{fds249032,
Author = {Guenther, BD and Weller, HR and Godwin, JL},
Title = {Search for nuclear isotopes for use in a nuclear
battery},
Journal = {Journal of Propulsion and Power},
Volume = {17},
Number = {3},
Pages = {540-546},
Publisher = {American Institute of Aeronautics and Astronautics
(AIAA)},
Year = {2001},
Month = {January},
ISSN = {0748-4658},
url = {http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000168804600008&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=47d3190e77e5a3a53558812f597b0b92},
Abstract = {Performance of a radioisotopic thermoelectric generator for
a human-portable energy source is discussed. The design of
thermoelectric generators is not considered. Instead
desirable characteristics of the radioisotope are used to
search for reasonable candidates with a half-life measured
in weeks and generating radiation that could easily be
shielded. Because radioisotopes with short half-lives would
have limited shelf-lives, a search was undertaken to
discover if isomers with different decay paths existed with
characteristics that would lead to a useful energy generator
design. The results indicate several interesting cases for
energy storage in radioactive isotopes. Two of the most
interesting cases uncovered were 121Te and 254Es. However,
intermediate levels that could be used to connect the
various nuclear energy levels are not currently known.
Measurements of transition rates that can be stimulated
between the desired levels are also needed to determine the
practicality of this concept. Such research is now possible
using the intense gamma beam that can be produced using
free-electron laser light backscattered from relativistic
electrons.},
Doi = {10.2514/2.5809},
Key = {fds249032}
}
@booklet{Godwin96,
Author = {Godwin, MA and Chasteler, RM and Laymon, CM and Prior, RM and Tilley,
DR and Weller, HR},
Title = {Search for p waves in low-energy proton capture reactions
relevant to the solar neutrino problem.},
Journal = {Physical review. C, Nuclear physics},
Volume = {53},
Number = {1},
Pages = {R1-R4},
Publisher = {American Physical Society (APS)},
Year = {1996},
Month = {January},
ISSN = {0556-2813},
url = {http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:A1996TR76100001&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=47d3190e77e5a3a53558812f597b0b92},
Abstract = {A previous study of the ground-state transition of the
7Li(→p,γ)8Be reaction at energies of Ep(lab)=80-0 keV
indicated the possibility of a large p-wave capture
amplitude in this reaction. A similar p-wave component in
the 7Be(p,γ)8B reaction could seriously affect the
extrapolation used to obtain the astrophysical S factor. The
present work examines this possibility by observing the
closely related 7Li(→p,γ16.6)8Be* (2+, T=0+ 1) reaction
with polarized protons at and below 80 keV. Experimental
data for σ(θ)/A0 and Ay(θ) for capture to the third (16.6
MeV) excited state of 8Be are presented, and the
implications discussed.},
Doi = {10.1103/physrevc.53.r1},
Key = {Godwin96}
}
@article{fds248891,
Author = {Weller, HEEAIH},
Title = {Single pi+/- electroproduction on the proton in the first
and second resonance regions at 0.25 GeV**2},
Journal = {Physical Review C},
Volume = {73},
Number = {2},
Pages = {025204},
Publisher = {The American Physical Society},
Year = {2006},
Month = {Winter},
ISSN = {0556-2813},
url = {http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000235669300048&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=47d3190e77e5a3a53558812f597b0b92},
Abstract = {www.aps.org},
Doi = {10.1103/PhysRevC.73.025204},
Key = {fds248891}
}
@article{fds29591,
Author = {A. Biselli for the CLAS Collaboration (including H.R.
Weller)},
Title = {Study of the Delta (1232) using Single and Double
Polarization Asymmetries},
Journal = {Physical Review},
Volume = {C68},
Pages = {035202},
Publisher = {The American Physical Society},
Year = {2004},
url = {http://www.aps.org},
Key = {fds29591}
}
@article{fds249014,
Author = {Biselli, A and Weller, TCLASCIHR},
Title = {Study of the Delta(1232) using Single and double
Polarization Asymmetries},
Journal = {Physical Review C},
Publisher = {American Physical Society},
Year = {2003},
url = {http://aps.org/},
Key = {fds249014}
}
@article{fds248897,
Author = {Weller, DPEAIH},
Title = {Survey of A_LT' Asymmetries in Semi-Exclusive Electron
Scattering on 4He and 12C},
Journal = {Nuclear Physics A},
Volume = {A748},
Number = {3-4},
Pages = {357},
Publisher = {Elsevier BV},
Year = {2005},
ISSN = {0375-9474},
url = {http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000226997100001&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=47d3190e77e5a3a53558812f597b0b92},
Abstract = {Single spin azimuthal asymmetries ALT′ were measured at
Jefferson Lab using 2.2 and 4.4 GeV longitudinally polarised
electrons incident on 4He and 12C targets in the CLAS
detector. ALT′ is related to the imaginary part of the
longitudinal-transverse interference and in quasifree
nucleon knockout it provides an unambiguous signature for
final state interactions (FSI). Experimental values of
ALT′ were found to be below 5%, typically ALT′ ≤ 3%
for data with good statistical precision. Optical model in
eikonal approximation (OMEA) and relativistic
multiple-scattering Glauber approximation (RMSGA)
calculations are shown to be consistent with the measured
asymmetries. © 2004 Elsevier B.V. All rights
reserved.},
Doi = {10.1016/j.nuclphysa.2004.11.009},
Key = {fds248897}
}
@booklet{Schmid96c,
Author = {Schmid, GJ and Chasteler, RM and Weller, HR and Tilley, DR and Fonseca,
AC and Lehman, DR},
Title = {T20 measurements for 1H(d},
Journal = {Physical review. C, Nuclear physics},
Volume = {53},
Number = {1},
Pages = {35-40},
Publisher = {American Physical Society (APS)},
Year = {1996},
Month = {January},
ISSN = {0556-2813},
url = {http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:A1996TR76100010&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=47d3190e77e5a3a53558812f597b0b92},
Doi = {10.1103/physrevc.53.35},
Key = {Schmid96c}
}
@booklet{Seyler85,
Author = {Seyler, RG and Weller, HR},
Title = {Tensor analyzing powers T20( theta ) and T22( theta ) in the
2H(darrow, gamma ) 4He reaction.},
Journal = {Physical review. C, Nuclear physics},
Volume = {31},
Number = {5},
Pages = {1952-1954},
Publisher = {American Physical Society (APS)},
Year = {1985},
Month = {May},
ISSN = {0556-2813},
url = {http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:A1985AHA0100046&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=47d3190e77e5a3a53558812f597b0b92},
Abstract = {Reaction theory expressions are used to prove that the
tensor analyzing powers T20(θ) and T22(θ) for the
H2(darrow,γ) 4He reaction are isotropic if the reaction is
pure E2 and terms quadratic in channel-spin-2 matrix
elements are neglected. Experimental departures from
isotropy can be expected near θ-0°, 90°, and 189°. ©
1985 The American Physical Society.},
Doi = {10.1103/physrevc.31.1952},
Key = {Seyler85}
}
@article{fds249007,
Author = {Weller, KMFTCLASCIHR},
Title = {Tensor Polarization of the phi Meson Photoproduced at High
t},
Journal = {Physical Review},
Volume = {C69},
Number = {3},
Pages = {032203},
Publisher = {The American Physical Society},
Year = {2004},
ISSN = {0556-2813},
url = {http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000220607200016&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=47d3190e77e5a3a53558812f597b0b92},
Abstract = {As part of a measurement [E. Anciant et al., Phys. Rev.
Lett. 85, 4682 (2000)] of the cross section of φ meson
photoproduction to high momentum transfer, we measured the
polar angular decay distribution of the outgoing K+ in the
channel φ → K+K- in the φ center-of-mass frame (the
helicity frame). We find that s-channel helicity
conservation (SCHC) holds in the kinematical range where
t-channel exchange dominates (up to -t ∼ 2.5 GeV2 for Eγ=
3.6 GeV). Above this momentum, u-channel production of a φ
meson dominates and induces a violation of SCHC. The deduced
value of the φNN coupling constant lies in the upper range
of previously reported values.},
Doi = {10.1103/PhysRevC.69.032203},
Key = {fds249007}
}
@booklet{Weller84,
Author = {Weller, HR and Colby, P and Roberson, NR and Tilley,
DR},
Title = {Tensor-polarized-deuteron capture on deuterium and the D
state of He4},
Journal = {Physical Review Letters},
Volume = {53},
Number = {14},
Pages = {1325-1328},
Publisher = {American Physical Society (APS)},
Year = {1984},
Month = {January},
ISSN = {0031-9007},
url = {http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:A1984TK96900007&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=47d3190e77e5a3a53558812f597b0b92},
Abstract = {The tensor analyzing power T20() of the reaction H2(d,)He4
has been measured at six angles at Ed=9.7 MeV. The result is
found to be isotropic with a value of T20=-0.220.014. This
analyzing power arises from the interference of S=0 and S=2
capture amplitudes. Since the reaction proceeds
predominantly via E2 radiation, the S=2 capture strength can
be attributed to S=2, L=2 ground-state admixtures. A
heuristic model calculation has been used to show that a
4.8% D-state admixture in the two-deuteron wave function
describing He4 can account for the observed T20. © 1984 The
American Physical Society.},
Doi = {10.1103/PhysRevLett.53.1325},
Key = {Weller84}
}
@article{fds28964,
Author = {A. P. Tonchev and S. O. Nelson and K. Sabourov and B.T. Crowley and K.
Joshi, H. R. Weller and J. H. Kelley and R. M. Prior and M. Spraker and N. Kalantar-Nayestanaki},
Title = {The 10B(p,g)11C Reaction at Astrophysically Relevant
Energies},
Journal = {Physical Review},
Volume = {C68},
Pages = {045803},
Publisher = {American Physical Society},
Year = {2004},
url = {http://aps.org},
Key = {fds28964}
}
@article{fds249025,
Author = {Tonchev, AP and Nelson, SO and Sabourov, K and Crowley, BT and Joshi, K and Weller, HR and Kelley, JH and Prior, RM and Spraker, M and Kalantar,
N},
Title = {The 10B(p,gamma)11C Reaction at Astrophysically Relevant
Energies},
Journal = {Physical Review C},
Volume = {C68},
Pages = {045803},
Publisher = {American physical Society},
Year = {2003},
url = {http://aps.org/},
Key = {fds249025}
}
@article{fds248889,
Author = {Sabourov, A and Ahmed, MW and Blackston, MA and Crowell, AS and Howell,
CR and Joshi, K and Nelson, SO and Perdue, BA and Sabourov, K and Tonchev,
A and Weller, HR and Prior, RM and Spraker, MC and Braizinha, B and Kalantar Nayestanaki and N},
Title = {The 7Li(d,n0)8Be and 7Li(d,n1)8Be reactions below 160
keV},
Journal = {Physical Review C},
Volume = {74},
Pages = {064611},
Publisher = {The American Physical Society},
Year = {2006},
Month = {December},
url = {http://aps.org/},
Key = {fds248889}
}
@booklet{Williams91,
Author = {Williams, JZ and Feldman, G and Weller, HR and Tilley,
DR},
Title = {The 6Li(d, γ)8Be reaction at
Ed=9.0 MeV and the D-state of
8Be},
Journal = {Physics Letters B},
Volume = {273},
Number = {3},
Pages = {216-221},
Publisher = {Elsevier BV},
Year = {1991},
Month = {December},
ISSN = {0370-2693},
url = {http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:A1991GX50400005&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=47d3190e77e5a3a53558812f597b0b92},
Abstract = {Measurements of the 6Li(d, γ)8Be cross section, σ(θ), the
vector analyzing power, Ay(θ) and the tensor analyzing
powers, Ayy(θ) and T20(θ), have been obtained at 〈Ed
Lab〉=9.0 MeV. A transition matrix element analysis was
performed. A direct-capture and a multichannel resonating
group model (MCRGM) calculation indicated a 6Li + d D-state
probability of (0.3-1.5)% in the ground state of 8Be. ©
1991.},
Doi = {10.1016/0370-2693(91)91674-K},
Key = {Williams91}
}
@booklet{Weller90,
Author = {Weller, HR},
Title = {The d-state of 4He and the 2H(d,γ)
4He reaction from Ed = 800 keV-to-50
MeV},
Journal = {Nuclear Physics, Section A},
Volume = {508},
Number = {C},
Pages = {273-279},
Publisher = {Elsevier BV},
Year = {1990},
Month = {January},
ISSN = {0375-9474},
url = {http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:A1990CU71600029&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=47d3190e77e5a3a53558812f597b0b92},
Doi = {10.1016/0375-9474(90)90484-4},
Key = {Weller90}
}
@booklet{Weller88a,
Author = {Weller, HR and Whitton, RM and Langenbrunner, J and Hayward, E and Dodge, WR and Kuhn, S and Tilley, DR},
Title = {The energy dependence of polarization observables in the
2H(d,γ)4He reaction},
Journal = {Physics Letters B},
Volume = {213},
Number = {4},
Pages = {413-418},
Publisher = {Elsevier BV},
Year = {1988},
Month = {November},
ISSN = {0370-2693},
url = {http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:A1988Q882100001&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=47d3190e77e5a3a53558812f597b0b92},
Abstract = {Measurements of the tensor and vector analyzing powers,
Ayy(130°) and Ay(130°), have been obtained for the 2H(d,γ
)4He reaction for energies ranging from Ed(lab) = 0.3 MeV to
Ed(lab) = 50 MeV. The Ayy(130°) data are sensitive to the
D-state present in the ground state of 4He and are observed
to have their maximum value near Ed = 30 MeV. The vector
analyzing power data show a maximum near Ed = 3 MeV. The
data are compared to the results of a microscopic
multi-channel resonating group model calculation. ©
1998.},
Doi = {10.1016/0370-2693(88)91283-X},
Key = {Weller88a}
}
@article{fds249031,
Author = {Thompson, R and Dytman, S and Kim, KY and Mueller, J and Adams, GS and Amaryan, MJ and Anciant, E and Anghinolfi, M and Asavapibhop, B and Auger, T and Audit, G and Avakian, H and Barrow, S and Battaglieri, M and Beard, K and Bektasoglu, M and Bertozzi, W and Bianchi, N and Biselli,
A and Boiarinov, S and Bonner, BE and Briscoe, WJ and Brooks, W and Burkert, VD and Calarco, JR and Capitani, G and Carman, DS and Carnahan,
B and Cole, PL and Coleman, A and Connelly, J and Cords, D and Corvisiero,
P and Crabb, D and Crannell, H and Cummings, J and Day, D and Degtyarenko,
PV and Demirchyan, RA and Dennis, LC and Deppman, A and De Sanctis and E and De Vita and R and Dhuga, KS and Djalali, C and Dodge, GE and Doughty, D and Dragovitsch, P and Dugger, M and Eckhause, M and Efremenko, YV and Egiyan, H and Egiyan, KS and Elouadrhiri, L and Farhi, L and Feuerbach,
RJ and Ficenec, J and Fissum, K and Freyberger, A and Funsten, H and Gai,
M and Gavrilov, VB and Gilfoyle, GP and Giovanetti, K and Gilad, S and Girard, P and Griffioen, KA and Guidal, M and Guillo, M and Gyurjyan, V and Hancock, D and Hardie, J and Heddle, D and Heisenberg, J and Hersman,
FW and Hicks, K and Hicks, RS and Holtrop, M and Hyde-Wright, CE and Ito,
MM and Jenkins, D and Joo, K and Kane, J and Khandaker, M and Kim, W and Klein, A and Klein, FJ and Klusman, M and Kossov, M and Kuhn, SE and Kuang,
Y and Laget, JM and Lawrence, D and Leskin, GA and Longhi, A and Loukachine, K and Lucas, M and Magahiz, R and Major, RW and Manak, JJ and Marchand, C and Matthews, SK and McAleer, S and McCarthy, J and McNabb,
JW and Mecking, BA and Mestayer, MD and Meyer, CA and Minehart, R and Mirazita, M and Miskimen, R and Muccifora, V and Mutchler, GS and Napolitano, J and Niyazov, RA and Ohandjanyan, MS and O'Brien, JT and Opper, A and Patois, Y and Peterson, GA and Philips, S and Pivnyuk, N and Pocanic, D and Pogorelko, O and Polli, E and Preedom, BM and Price, JW and Qin, LM and Raue, BA and Reolon, AR and Riccardi, G and Ricco, G and Ripani, M and Ritchie, BG and Ronchetti, F and Rossi, P and Roudot, F and Rowntree, D and Rubin, PD and Salgado, CW and Sanzone, M and Sapunenko,
V and Sarty, A and Sargsyan, M and Schumacher, RA and Shafi, A and Sharabian, YG and Shaw, J and Shuvalov, SM and Skabelin, A and Smith, T and Smith, C and Smith, ES and Sober, DI and Spraker, M and Stepanyan, S and Stoler, P and Taiuti, M and Taylor, S and Tedeschi, D and Tung, TY and Vineyard, MF and Vlassov, A and Weller, H and Weinstein, LB and Welsh,
R and Weygand, DP and Whisnant, S and Witkowski, M and Wolin, E and Yegneswaran, A and Yun, J and Zhou, Z and Zhao, J and CLAS
Collaboration},
Title = {The ep -->e'p eta reaction at and above the S11(1535) baryon
resonance.},
Journal = {Physical review letters},
Volume = {86},
Number = {9},
Pages = {1702-1706},
Year = {2001},
Month = {February},
ISSN = {0031-9007},
url = {http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000167172400010&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=47d3190e77e5a3a53558812f597b0b92},
Abstract = {New cross sections for the reaction e p-->e p eta are
reported for total center of mass energy W = 1.5--1.86 GeV
and invariant momentum transfer Q2 = 0.25--1.5 (GeV/c)(2).
This large kinematic range allows extraction of important
new information about response functions, photocouplings,
and eta N coupling strengths of baryon resonances. Newly
observed structure at W approximately 1.65 GeV is shown to
come from interference between S and P waves and can be
interpreted with known resonances. Improved values are
derived for the photon coupling amplitude for the S11(1535)
resonance.},
Doi = {10.1103/physrevlett.86.1702},
Key = {fds249031}
}
@conference{fds3751,
Author = {H.R. Weller},
Title = {The HIGS Facility-A Free-Electron Laser Genrated Gamma-Ray
Beam for Nuclear Physics},
Booktitle = {Proceedings of the International Symposium: Electromagnetic
Interactions in Nuclear and Hadron Physics},
Publisher = {World Scientific Publishing Co.},
Editor = {Mamoru Fujiwara and Tatsushi Shima},
Year = {2002},
Month = {December},
Abstract = {The High Intensity Gamma Ray Source (HIGS), a collaborative
project between TUNL and the Duke Free Electron Laser
Laboratory at Duke University is described. The results of
some intial experiments and plans for the future research
program are discussed.},
Key = {fds3751}
}
@article{fds249021,
Author = {Weller, HR and Ahmed, MW},
Title = {The HIGS Facility: A Free-Electron Laser Generated Gamma-Ray
Beam for Research in Nuclear Physics},
Journal = {Modern Physics Letters A},
Volume = {18},
Number = {23},
Pages = {1569-1589},
Publisher = {World Scientific},
Year = {2003},
Month = {July},
url = {http://www.worldscientific.com/},
Key = {fds249021}
}
@article{fds29620,
Author = {H.R. Weller},
Title = {The HIGS Facility: A Free-Electron Laser Generated Gamma-Ray
Beam for Research in Nuclear Physics},
Pages = {S378},
Booktitle = {Few-Body Problems in Physics},
Publisher = {Elsevier},
Editor = {W. Gloeckle and W. Tornow},
Year = {2004},
Key = {fds29620}
}
@booklet{Delsanto83,
Author = {DELSANTO, PP and WELLER, HR and BIEDENHARN, LC},
Title = {THE PUZZLE OF THE SIGMA(GAMMA,P) SIGMA(GAMMA,N) RATIO IN
HE-4},
Journal = {ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING},
Volume = {8},
Number = {4},
Pages = {325-329},
Year = {1983},
ISSN = {0377-9211},
url = {http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:A1983RZ59400005&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=47d3190e77e5a3a53558812f597b0b92},
Key = {Delsanto83}
}
@booklet{Carman96,
Author = {Carman, TS and Litveninko, V and Madey, J and Neuman, C and Norum, B and O'Shea, PG and Roberson, NR and Scarlett, CY and Schreiber, E and Weller, HR},
Title = {The TUNL-FELL inverse Compton γ-ray source as a nuclear
physics facility},
Journal = {Nuclear Instruments and Methods in Physics Research, Section
A: Accelerators, Spectrometers, Detectors and Associated
Equipment},
Volume = {378},
Number = {1-2},
Pages = {1-20},
Publisher = {Elsevier BV},
Year = {1996},
Month = {August},
ISSN = {0168-9002},
url = {http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:A1996VB36200001&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=47d3190e77e5a3a53558812f597b0b92},
Abstract = {A new technique for producing an intense beam of polarized
γ-rays is presented. This High-Intensity Gamma-ray Source
(HIGS) will utilize the facilities of the new Duke Free
Electron Laser Laboratory. This system includes the LINAC
injector, the 1.3 GeV electron storage ring, and the OK-4
undulator. It will be shown that it is possible to tune the
electron beam in a manner which allows the FEL photons to
backscatter from an electron bunch, all within the ring.
This leads to an intense beam of almost 100% linearly
polarized γ-rays whose energy can be readily tuned from
about 5 to greater than 200 MeV. Furthermore, beam energy
spreads of less than 1% can be obtained by pure geometrical
collimation. Details of the beam properties and background
sources will be presented. It will be shown that this is an
ideal beam for nuclear physics and nuclear astrophysics
studies. One example of this which takes advantage of the
flux, energy resolution and polarization of the beam, is the
study of Δ33 excitations in finite nuclei. These intense
polarized beams will also make it possible to perform
precision measurements of the nucleon polarizabilities. And
we will see that studies in the vicinity of the photo-pion
production threshold can provide crucial tests of many of
the recent predictions (Low Energy Theorems) of Chiral
Perturbation Theory. Our final example will show how the
very intense beams available at low energies can be used to
determine astrophysically important capture cross sections
by measurements of the inverse reactions.},
Doi = {10.1016/0168-9002(95)01486-1},
Key = {Carman96}
}
@booklet{Schmid97,
Author = {Schmid, GJ and Rice, BJ and Chasteler, RM and Godwin, MA and Kiang, GC and Kiang, LL and Laymon, CM and Prior, RM and Tilley, DR and Weller,
HR},
Title = {The??2H(p→,γ)3He
and??1H(d→,γ)3He
reactions below 80 keV},
Journal = {Physical Review C},
Volume = {56},
Number = {5},
Pages = {2565-2581},
Publisher = {American Physical Society (APS)},
Year = {1997},
Month = {November},
ISSN = {0556-2813},
url = {http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:A1997YH00900028&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=47d3190e77e5a3a53558812f597b0b92},
Doi = {10.1103/physrevc.56.2565},
Key = {Schmid97}
}
@article{fds249030,
Author = {Weller, HR},
Title = {Threshold contribution to the Gerasimov-Drell-Hearn sum rule
in 3He},
Journal = {NUCLEAR PHYSICS A},
Volume = {684},
Pages = {516C-520C},
Year = {2001},
ISSN = {0375-9474},
url = {http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000167628700099&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=47d3190e77e5a3a53558812f597b0b92},
Key = {fds249030}
}
@article{fds249034,
Author = {Weller, HR},
Title = {Threshold contribution to the Gerasimov-Drell-Hearn sum rule
in 3He},
Journal = {FEW-BODY PROBLEMS IN PHYSICS '99},
Volume = {12},
Pages = {287-292},
Year = {2000},
ISSN = {0177-8811},
url = {http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000166770100050&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=47d3190e77e5a3a53558812f597b0b92},
Key = {fds249034}
}
@article{fds249036,
Author = {Rice, BJ and Canon, RS and Wulf, EA and Weller, HR and Keeter, K and Kolb,
NR and Mueller, C and Pywell, RE and Retzlaff, GA and Skopik, DM and Feldman, G},
Title = {Two-deuteron photodisintegration of 4He at
Eγ=150-250 MeV},
Journal = {Physical Review C - Nuclear Physics},
Volume = {61},
Number = {6},
Pages = {646121-646128},
Publisher = {American Physical Society (APS)},
Year = {2000},
Month = {January},
ISSN = {0556-2813},
url = {http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000087575000055&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=47d3190e77e5a3a53558812f597b0b92},
Abstract = {We have performed a measurement of the cross section for the
4He(γ,dd) reaction with photon energies between 150 and 250
MeV. Both reaction particles were detected in coincidence.
We obtained absolute cross sections at six angles and two
energy bins (150-190 MeV and 190-250 MeV). A Legendre
polynomial fit to the angular distribution shows a sin2 θ
distribution which suggests the isospin-forbidden E1
transition. However, a transition matrix element (TME)
analysis using only strictly allowed transitions shows that
the angular distribution can be described by just two TMEs:
E2 s- and d-wave absorption on the D state of 4He. We
performed an inverse direct-capture calculation in order to
determine if the D state could contribute to such a high
degree to the cross section. This calculation indicates that
90% of the cross section arises from absorption on the D
state but fails to reproduce the observed sin2 θ angular
distribution.},
Doi = {10.1103/PhysRevC.61.064612},
Key = {fds249036}
}
@booklet{Langenbrunner90,
Author = {Langenbrunner, JL and Weller, HR and Tilley, DR},
Title = {Two-deuteron radiative capture: Polarization observables at
Ed <= 15 MeV.},
Journal = {Physical review. C, Nuclear physics},
Volume = {42},
Number = {4},
Pages = {1214-1224},
Publisher = {American Physical Society (APS)},
Year = {1990},
Month = {October},
ISSN = {0556-2813},
url = {http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:A1990EE08600013&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=47d3190e77e5a3a53558812f597b0b92},
Doi = {10.1103/physrevc.42.1214},
Key = {Langenbrunner90}
}
@article{fds249009,
Author = {Weller, RANFTCLASCIHR},
Title = {Two-Nucleon Momentum Distributions Measured in
3He(e,e'pp)n},
Journal = {Physical Review Letters},
Volume = {92},
Number = {5},
Pages = {052303},
Publisher = {The American Physical Society},
Year = {2004},
ISSN = {0031-9007},
url = {http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000188785200015&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=47d3190e77e5a3a53558812f597b0b92},
Abstract = {We have measured the 3He(e,e'pp)n reaction at 2.2 GeV over a
wide kinematic range. The kinetic energy distribution for
"fast" nucleons (p>250 MeV/c) peaks where two nucleons each
have 20% or less, and the third nucleon has most of the
transferred energy. These fast pp and pn pairs are back to
back with little momentum along the three-momentum transfer,
indicating that they are spectators. Calculations by
Sargsian and by Laget also indicate that we have measured
distorted two-nucleon momentum distributions by striking one
nucleon and detecting the spectator correlated
pair.},
Doi = {10.1103/physrevlett.92.052303},
Key = {fds249009}
}
@booklet{Vetterli88,
Author = {Vetterli, MC and Kuehner, JA and Bamber, C and Davis, N and Trudel, AJ and Weller, HR and Whitton, RM},
Title = {Vector analyzing powers for 1H(d},
Journal = {Physical review. C, Nuclear physics},
Volume = {38},
Number = {6},
Pages = {2503-2508},
Publisher = {American Physical Society (APS)},
Year = {1988},
Month = {December},
ISSN = {0556-2813},
url = {http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:A1988R277300002&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=47d3190e77e5a3a53558812f597b0b92},
Abstract = {The vector analyzing powers for the H1(,)3He and H2(,) He3
reactions have been measured near threshold (E=7.5 MeV). The
angular distribution of the cross section was also measured
for the H2(p,)3He reaction. The ratio of the analyzing
powers is sensitive to the presence of S=(3/2 capture
strength. It was found that a 10% contribution to the
capture by M1 radiation (predominantly S=(3/2) is required
to explain the data. © 1988 The American Physical
Society.},
Doi = {10.1103/physrevc.38.2503},
Key = {Vetterli88}
}
@booklet{King84,
Author = {King, S and Roberson, NR and Weller, HR and Tilley, DR and Engelbert,
HP and Berg, H and Huttel, E and Clausnitzer, G},
Title = {Vector analyzing powers of H1(d,γ) and H2(p,γ) reactions
at Ex=6 MeV},
Journal = {Physical Review C},
Volume = {30},
Number = {4},
Pages = {1335-1338},
Publisher = {American Physical Society (APS)},
Year = {1984},
Month = {January},
ISSN = {0556-2813},
url = {http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:A1984TM47400033&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=47d3190e77e5a3a53558812f597b0b92},
Abstract = {The vector analyzing powers have been measured for the
H1(d→,γ) He3 and the H2(p→,γ)He3 reactions at Ex=6
MeV. The results indicate the presence of channel spin 32
capture strength. An M 1 strength amounting to between 1 and
8% of the cross section is able to explain the observations
if a significant s=32 component is included. © 1984 The
American Physical Society.},
Doi = {10.1103/PhysRevC.30.1335},
Key = {King84}
}
@article{fds344666,
Author = {Dugger, M and Ritchie, BG and Ball, JP and Collins, P and Pasyuk, E and Arndt, RA and Briscoe, WJ and Strakovsky, II and Workman, RL and Adams,
G and Amarian, M and Ambrozewicz, P and Anciant, E and Anghinolfi, M and Asavapibhop, B and Asryan, G and Audit, G and Avakian, H and Bagdasaryan, H and Baillie, N and Baltzell, NA and Barrow, S and Battaglieri, M and Beard, K and Bedlinskiy, I and Bektasoglu, M and Bellis, M and Benmouna, N and Berman, BL and Bianchi, N and Biselli, AS and Bonner, BE and Bouchigny, S and Boiarinov, S and Bradford, R and Branford, D and Brooks, WK and Bueltmann, S and Burkert, VD and Butuceanu, C and Calarco, JR and Careccia, SL and Carman, DS and Carnahan, B and Chen, S and Cole, PL and Coleman, A and Coltharp, P and Cords, D and Corvisiero, P and Crabb, D and Crannell, H and Cummings,
JP and De Sanctis and E and De Vita and R and Degtyarenko, PV and Denizli, H and Dennis, L and Deur, A and Dharmawardane, KV and Dhuga, KS and Dickson,
R and Djalali, C and Dodge, GE and Donnelly, J and Doughty, D and Dragovitsch, P and Dytman, S and Dzyubak, OP and Egiyan, H and Egiyan,
KS and Elouadrhiri, L and Empl, A and Eugenio, P and Fatemi, R and Fedotov,
G and Feldman, G and Feuerbach, RJ and Ficenec, J and Forest, TA and Funsten, H and Garcon, M and Gavalian, G and Gilfoyle, GP and Giovanetti, KL and Girod, FX and Goetz, JT and Gothe, RW and Griffioen,
KA and Guidal, M and Guillo, M and Guler, N and Guo, L and Gyurjyan, V and Hadjidakis, C and Hakobyan, RS and Hardie, J and Heddle, D and Hersman,
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Number = {2},
Year = {2007},
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Year = {1998},
Key = {fds249043}
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Title = {“New S-Factor Results from Polarized Proton Capture
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Series = {Editions Frontieres, Paris},
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Year = {1998},
Key = {fds4811}
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Publisher = {Gordon and Breach},
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Year = {1998},
Key = {fds4809}
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Year = {1998},
Key = {fds4808}
}