Speaker
Dr
Mukesh Kumar Pandey
(1Department of Physics, National Taiwan University, Taipei 10617, Taiwan)
Description
Scattering of light dark matter (LDM) particles with atomic electrons is studied in the context of effective field theory. Contact and long-range interactions between dark matter and an electron are both considered. A state-of-the-art many-body method is used to evaluate spin independent atomic ionization cross sections of LDM-electron scattering. New upper limits are derived on parameter space spanned by LDM mass and effective coupling strengths using data from the CDMSlite, XENON10, and XENON100 experiments. Comparison with existing calculations shows disagreement and indicates the importance of atomic many-body physics in direct LDM searches.
Primary author
Dr
Mukesh Kumar Pandey
(1Department of Physics, National Taiwan University, Taipei 10617, Taiwan)
Co-authors
Prof.
C.-P. Liu
(Department of Physics, National Dong Hwa University, Shoufeng, Hualien 97401, Taiwan)
Dr
Chih-Pan Wu
(Department of Physics, National Taiwan University, Taipei 10617, Taiwan)
Mr
Chung-Chun Hsieh
(Department of Physics, National Taiwan University, Taipei 10617, Taiwan)
Prof.
Henry T. Wong
(Institute of Physics, Academia Sinica, Taipei 11529, Taiwan)
Prof.
Hsin-Chang Chi
(Department of Physics, National Dong Hwa University, Shoufeng, Hualien 97401, Taiwan)
Prof.
Jiunn-Wei Chen
(Department of Physics, Center for Theoretical Physics, and Leung Center for Cosmology and Particle Astrophysics, National Taiwan University, Taipei 10617, Taiwan. Center for Theoretical Physics, Massachusetts Institute of Technology, Cambridge, MA 02139, USA)
Dr
Lakhwinder Singh
(Institute of Physics, Academia Sinica, Taipei 11529, Taiwan)
