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Low background control of the PandaX-4T dark matter experiment
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Low background control of the PandaX-4T dark matter experiment
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Journal Article
Low background control of the PandaX-4T dark matter experiment
2022
Overview
The PandaX-4T is a dark matter direct search experiment with a dual-phase xenon detector. It is located at Jinping underground laboratory in Sichuan, China. In 2.8-ton fiducial mass and energy region of interest (range from 1 to 10 keV), the total electron recoil and nuclear recoil backgrounds are estimated to be (4.9±0.5) × 10 −2 mDRU and (2.8±0.5) × 10 −4 mDRU. With an exposure of 5.6 ton-years, the expected sensitivity of PandaX-4T could reach a spin-independent dark matter-nucleon cross section of 6 × 10 −48 cm 2 at a dark matter mass of 40 GeV/c 2 . An overview of detector design, background control and current status will be presented in this paper.
Publisher
IOP Publishing
Subject
