Studies of the Earth shielding effect to direct dark matter searches at the China Jinping Underground Laboratory

Abstract

Dark matter direct detection experiments mostly operate at deep underground laboratories. It is necessary to consider shielding effect of the Earth, especially for dark matter particles interacting with a large cross section. We analyzed and simulated the Earth shielding effect for dark matter at the China Jinping Underground Laboratory (CJPL) with a simulation package, CJPL Earth Shielding Simulation code (CJPL\_ESS), which is applicable to other underground locations. The further constraints on the $\chi$-N cross section exclusion regions are derived based on the studies with CDEX experiment data.

8 pages, 8 figures, 2 tables. Version updated to match PRD version

References in corpus (7)

• Results from a search for dark matter in the complete LUX exposure
• Searching for low-mass dark matter particles with a massive Ge bolometer operated above-ground
• Low-Mass Dark Matter Search with CDMSlite
• The China Jinping Underground Laboratory and its Early Science
• Limits on light WIMPs from the CDEX-1 experiment with a p-type point-contact germanium detector at the China Jingping Underground Laboratory
• DaMaSCUS: The Impact of Underground Scatterings on Direct Detection of Light Dark Matter
• Closing the window on $\sim$GeV Dark Matter with moderate ($\sim$$\mu$b) interaction with nucleons

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