Light WIMP search in CDEX

Hau-Bin Li^1*

¹Institute of Physics, Academia Sinica, Taipei, Taiwan

* Presenter:Hau-Bin Li, email:lihb@gate.sinica.edu.tw

We present results on light weakly interacting massive particle (WIMP) searches with time-integrated (TI) and annual modulation (AM) analysis on data from a 1-kg mass p-type point-contact germanium detector of the CDEX-1B experiment at the China Jinping Underground Laboratory. Limits from WIMP-nucleus with Migdal effect and WIMP-electrons interactions with earth scattering correction will be discussed. We also present results of WIMP-electrons interactions from various experiments. We will also show that a three components analysis (WIMP-nucleus, WIMP-electron short range and long range) could fit DAMA/LIBRA phase-2 data well.

Keywords: underground experiments, Ge detector, NaI detector, WIMP, Dark Matter