Haiyan Gao, Professor
Office Location: 2313 FFSC
Office Phone: (919) 660-2622
Email Address: gao@phy.duke.edu
Web Page: http://www.tunl.duke.edu/~mep
Specialties:
Experimental nuclear physics
Education:
Ph.D., California Institute of Technology, 1994
B.S., Tsinghua University, 1988
Current projects: Neutron EDM, HIGS Compton scattering program, neutron transversity experiment at JLab , study of exclusive processes and search for phi-N bound state
Research Description: Prof. Gao's research focuses on understanding the structure of the nucleon and exclusive nucleon and nuclear processes at high energies in terms of quark and gluon degrees of freedom of Quantum Chromodynamics (QCD) using high energy electron and photon beams as probes. Most of her work utilizes the novel experimental technique of scattering polarized electrons or photons from polarized gas targets. Her group has built a laser-driven polarized H/D internal gas target with the highest Figure-Of-Merit ever achieved for such a target. Her group has also built a high-pressure polarized 3He target to probe the neutron and 3He spin polarizabilities using the HIGS facility at DFELL. She and her group are also embarking on a challenging experiment aiming at a two orders of magnitude improvement over the current limit on the neutron electric dipole moment. A non-zero value of the neutron electric dipole moment is a direct search for time-reversal symmetry violation. Such an experiment will make important contributions to the understanding of CP violation and to the search of New Physics beyond the Standard Model. Her group is also actively engaged in the search of exotic QCD states such as the phi-nucleon bound state, a QCD molecular state. Her research is being carried out at the Thomas Jefferson National Accelerator Facility (JLab) in Newport News, Virginia, the HIGS facility at DFELL, and the future Fundamental Neutron Beam Line at the SNS, Oak Ridge National Laboratory.
Areas of Interest:
QCD Physics, Fundamental symmetry study, test of the Standard Model of Physics
Teaching (Fall 2009):
- Physics 62l9r.01, Intro electric, magnet, optics
- Physics 150, M 01:15 PM-03:15 PM
- Physics 62l9r.08, Intro electric, magnet, optics
- Physics 150, Tu 01:15 PM-03:15 PM
- Physics 62l9r.10, Intro electric, magnet, optics
- Physics 150, Tu 03:30 PM-05:30 PM
Recent Publications (More Publications)
- S. Marrone et al., Performance of the two aerogel cherenkov detectors of the JLab Hall A hadron spectrometer, Nuovo Cim, vol. 124B (2009), pp. 99 .
- Wei Chen, T. Mibe, H. Gao et al., A measurement of the differential cross section for the reaction $\gamma n \rightarrow \pi^- p$ from deuterium, Physical Review Letters, vol. 103 (2009), pp. 012301 .
- Q. Ye, H. Gao, W.Z. Zheng et al., Relaxation of Spin Polarized 3He in Mixtures of 3He and 4He at 330 mK, Phys. Rev. A, vol. 80 (2009), pp. 023403 .
- Xin Qian, Wei Chen, H. Gao et al., The extraction of phi-N total differential cross section from d(gamma,pK^+K^-)n, Phys. Lett. B, vol. 680 (2009), pp. 417 .
- T. Horn, X. Qian, et al., Scaling Study of the Pion Electroprodeuction Cross Sections, Physical Review C, vol. 78 (2008), pp. 058201 .
- Current Ph.D. Students
(Former Students)
- Qiujian Ye
- Georgios Laskaris
- Min Huang
- Wangzhi Zheng
- Wei Chen
- Xing Zong
- Xin Qian
- Postdocs Mentored
- Qiang Ye (September 01, 2008 - present)
- Yi Qiang (May 01, 2007 - present)
- Xiaofeng Zhu (January 15, 2006 - November 30, 2008)
- Kevin Kramer (2003/08-2006/07)
- Krishni Wijesooriya (2003/02-2003/07)
- Wang Xu (November 1, 2002 - May 15, 2005)
- Xiang Hong (1999/11-2002/10)
- Dipangkar Dutta (1999/02-2003/01)
- Timothy Black (1998/03-1999/06)