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Dark matter direct search sensitivity of the PandaX-4T experiment

  • Hong Guang Zhang
  • , Abdusalam Abdukerim
  • , Wei Chen
  • , Xun Chen
  • , Yun Hua Chen
  • , Xiang Yi Cui
  • , Bin Bin Dong
  • , De Qing Fang
  • , Chang Bo Fu
  • , Karl Giboni
  • , Franco Giuliani
  • , Lin Hui Gu
  • , Xu Yuan Guo
  • , Zhi Fan Guo
  • , Ke Han
  • , Chang Da He
  • , Sheng Ming He
  • , Di Huang
  • , Xing Tao Huang
  • , Zhou Huang
  • Peng Ji, Xiang Dong Ji*, Yong Lin Ju, Shao Li Li, Yao Li, Heng Lin, Hua Xuan Liu, Jiang Lai Liu, Yu Gang Ma, Ya Jun Mao, Kai Xiang Ni, Jin Hua Ning, Xiang Xiang Ren, Fang Shi, An Di Tan, An Qing Wang, Cheng Wang, Hong Wei Wang, Meng Wang, Qiu Hong Wang, Si Guang Wang, Xiu Li Wang, Xu Ming Wang, Zhou Wang, Meng Meng Wu, Shi Yong Wu, Jing Kai Xia, Meng Jiao Xiao, Peng Wei Xie, Bin Bin Yan, Ji Jun Yang, Yong Yang, Chun Xu Yu, Ju Min Yuan, Jian Feng Yue, Dan Zhang, Tao Zhang, Li Zhao, Qi Bin Zheng, Ji Fang Zhou, Ning Zhou, Xiao Peng Zhou
*此作品的通讯作者
  • Shanghai Jiao Tong University
  • Xinjiang University
  • Yalong River Hydropower Development Company, Ltd.
  • Chinese Academy of Sciences
  • Shandong University
  • Nankai University
  • Peking University
  • University of Maryland, College Park
  • University of Shanghai for Science and Technology

科研成果: 期刊稿件文章同行评审

摘要

The PandaX-4T experiment, a 4-ton scale dark matter direct detection experiment, is being planned at the China Jinping Un- derground Laboratory. In this paper we present a simulation study of the expected background in this experiment. In a 2.8-ton fiducial mass and the signal region between 1–10 keV electron equivalent energy, the total electron recoil background is found to be 4:9 × 10−5 kg−1d−1keV−1. The nuclear recoil background in the same region is 2:8 × 10−7 kg−1d−1keV−1. With an exposure of 5.6 ton-years, the sensitivity of PandaX-4T could reach a minimum spin-independent dark matter-nucleon cross section of 6 × 10−48 cm2 at a dark matter mass of 40 GeV/c2.

源语言英语
文章编号31011
期刊Science China: Physics, Mechanics and Astronomy
62
3
DOI
出版状态已出版 - 1 3月 2019
已对外发布

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