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Limits on Light Weakly Interacting Massive Particles from the First 102.8 kg ${times}$ day Data of the CDEX-10 Experiment

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 نشر من قبل Qian Yue
 تاريخ النشر 2018
  مجال البحث فيزياء
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We report the first results of a light weakly interacting massive particles (WIMPs) search from the CDEX-10 experiment with a 10 kg germanium detector array immersed in liquid nitrogen at the China Jinping Underground Laboratory with a physics data size of 102.8 kg day. At an analysis threshold of 160 eVee, improved limits of 8 $times 10^{-42}$ and 3 $times 10^{-36}$ cm$^{2}$ at a 90% confidence level on spin-independent and spin-dependent WIMP-nucleon cross sections, respectively, at a WIMP mass ($m_{chi}$) of 5 GeV/${c}^2$ are achieved. The lower reach of $m_{chi}$ is extended to 2 GeV/${c}^2$.



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