Henry Newson Distinguished Professor of Physics
Professor of Physics
Professor of Physics at Duke Kunshan University (Secondary)
Prof. Gao's research focuses on understanding the structure of the nucleon in terms of quark and gluon degrees of freedom of Quantum Chromodynamics (QCD), search for QCD exotics, and fundamental symmetry studies at low energy to search for new physics beyond the Standard Model of electroweak interactions. Most recently, her group's studies of the structure of the nucleon have been focusing on a precision measurement of the proton (see her group's 2019 Nature paper on this topic) and deuteron charge radii to elucidate on the proton and the deuteron charge radius puzzles, and on imaging the three-dimensional structure of the nucleon in momentum space through the extraction of transverse momentum dependent parton distribution functions (TMDs), employing polarized semi-inclusive deep inelastic scattering processes. The nucleon tomography provided by TMDs will uncover the rich QCD dynamics, and provide quantitative information about the quark orbital angular momentum contribution to the proton spin. TMDs will also provide information on fundamental quantities such as the tensor charge of the nucleon, a quantity not only important for testing lattice QCD predictions, but also important for searches of new physics beyond the Standard Model together with the next generation of nucleon electric dipole moment experiments. Her group is playing leading roles in the Solenoidal Large Intensity Device (SoLID) project at Jefferson Lab, a high profile program which will make major impact on TMD physics, proton mass puzzle through precision measurement of J/psi production near threshold, and search for new physics beyond the Standard Model using parity-violating deep inelastic scattering. Most of her work utilizes the novel experimental technique of scattering polarized electrons or photons from polarized gas targets. Her group has built a number of state-of-the-art polarized gas targets including H/D internal gas target and a high-pressure polarized 3He target for photon experiments using the High Intensity Gamma Source (HIGS) facility at the Duke Free Electron Laser Laboratory (DFELL). Her research is being carried out mostly at the Thomas Jefferson National Accelerator Facility (JLab) in Newport News, Virginia, and the HIGS facility at DFELL.
Zhao, Y. X., et al. “Double spin asymmetries of inclusive hadron electroproduction from a transversely polarized He 3 target.” Physical Review C Nuclear Physics, vol. 92, no. 1, July 2015. Scopus, doi:10.1103/PhysRevC.92.015207. Full Text
Parno, D. S., et al. “Precision measurements of A1n in the deep inelastic regime.” Physics Letters, Section B: Nuclear, Elementary Particle and High Energy Physics, vol. 744, May 2015, pp. 309–14. Scopus, doi:10.1016/j.physletb.2015.03.067. Full Text
Akushevich, I., et al. “Radiative corrections beyond the ultra relativistic limit in unpolarized ep elastic and Møller scatterings for the PRad Experiment at Jefferson Laboratory.” European Physical Journal A, vol. 51, no. 1, Jan. 2015. Scopus, doi:10.1140/epja/i2015-15001-8. Full Text Open Access Copy
Mihovilovič, M., et al. “Measurement of double-polarization asymmetries in the quasielastic (3)He[→](e[→],e(')d) process.” Physical Review Letters, vol. 113, no. 23, Dec. 2014, p. 232505. Epmc, doi:10.1103/physrevlett.113.232505. Full Text
Zhang, Y., et al. “Measurement of "pretzelosity" asymmetry of charged pion production in semi-inclusive deep inelastic scattering on a polarized He 3 target.” Physical Review C Nuclear Physics, vol. 90, no. 5, Nov. 2014. Scopus, doi:10.1103/PhysRevC.90.055209. Full Text
Zhao, Y. X., et al. “Single spin asymmetries in charged kaon production from semi-inclusive deep inelastic scattering on a transversely polarized He 3 target.” Physical Review C Nuclear Physics, vol. 90, no. 5, Nov. 2014. Scopus, doi:10.1103/PhysRevC.90.055201. Full Text
Posik, M., et al. “Precision measurement of the neutron twist-3 matrix element d(2)(n): probing color forces.” Physical Review Letters, vol. 113, no. 2, July 2014, p. 022002. Epmc, doi:10.1103/physrevlett.113.022002. Full Text
Katich, J., et al. “Measurement of the target-normal single-spin asymmetry in deep-inelastic scattering from the reaction (3)He(↑)(e,e')X.” Physical Review Letters, vol. 113, no. 2, July 2014, p. 022502. Epmc, doi:10.1103/physrevlett.113.022502. Full Text
Chu, P. H., et al. “Searches for possible T-odd and P-odd short range interactions using polarized nuclei.” Epj Web of Conferences, vol. 66, Apr. 2014. Scopus, doi:10.1051/epjconf/20146605003. Full Text
Allada, K., et al. “Single spin asymmetries of inclusive hadrons produced in electron scattering from a transversely polarized 3 He target.” Physical Review C Nuclear Physics, vol. 89, no. 4, Apr. 2014. Scopus, doi:10.1103/PhysRevC.89.042201. Full Text
A New innovative, integrated and interdisciplinary liberal arts and sciences curriculum at Duke Kunshan University. invited keynote at the International Educator Symposium - Educational Excellence: Inspiring Global Leaders. July 21, 2017 - July 23,...
A New innovative, integrated and interdisciplinary liberal arts curriculum at Duke Kunshan University. invited keynote at the International Conference on Liberal Arts Education. April 15, 2017 - April 16, 2017
International Advisory Committee Member. 12th International Symposium on Meson-Nucleon Physics and the Structure of the Nucleon,College of William and Mary, Williamsburg, USA, May 31 -June. December 12, 2010
Committee member. International Advisory Committee, the 4th joint meeting of the Division of Nuclear Physics (DNP) of the American Physical Society (APS) and the nuclear physicists of the Physical Society of Japan (JPS). DNP/APS and JPS. October 14...