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

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Abstract

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.

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Authors and Affiliations

  1. Shanghai Key Laboratory for Particle Physics and Cosmology, Institute of Nuclear and Particle Physics (INPAC) and School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai, 200240, China

    HongGuang Zhang, Wei Chen, Xun Chen, XiangYi Cui, BinBin Dong, ChangBo Fu, Karl Giboni, Franco Giuliani, LinHui Gu, Ke Han, ChangDa He, Di Huang, Zhou Huang, XiangDong Ji, ShaoLi Li, Yao Li, Heng Lin, JiangLai Liu, KaiXiang Ni, XiangXiang Ren, Fang Shi, XuMing Wang, JingKai Xia, JiJun Yang, Yong Yang, Tao Zhang, Li Zhao & Ning Zhou

  2. School of Physics and Technology, Xinjiang University, Urumqi, 830046, China

    Abdusalam Abdukerim

  3. Yalong River Hydropower Development Company, Ltd., Chengdu, 610051, China

    YunHua Chen, XuYuan Guo, ShengMing He, JinHua Ning, ShiYong Wu, JianFeng Yue & JiFang Zhou

  4. Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai, 201800, China

    DeQing Fang, YuGang Ma, HongWei Wang & QiuHong Wang

  5. School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China

    ZhiFan Guo, YongLin Ju, HuaXuan Liu, Cheng Wang, XiuLi Wang & Zhou Wang

  6. School of Physics and Key Laboratory of Particle Physics and Particle Irradiation (MOE), Shandong University, Jinan, 250100, China

    XingTao Huang, AnQing Wang, Meng Wang, BinBin Yan & JuMin Yuan

  7. School of Physics, Nankai University, Tianjin, 300071, China

    Peng Ji, MengMeng Wu & ChunXu Yu

  8. Tsung-Dao Lee Institute, Shanghai, 200240, China

    XiangDong Ji, JiangLai Liu & PengWei Xie

  9. School of Physics, Peking University, Beijing, 100871, China

    YaJun Mao, SiGuang Wang & XiaoPeng Zhou

  10. Department of Physics, University of Maryland, College Park, Maryland, 20742, USA

    AnDi Tan, MengJiao Xiao & Dan Zhang

  11. Center of High Energy Physics, Peking University, Beijing, 100871, China

    MengJiao Xiao

  12. School of Medical Instrument and Food Engineering, University of Shanghai for Science and Technology, Shanghai, 200093, China

    QiBin Zheng

Authors
  1. HongGuang Zhang
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  2. Abdusalam Abdukerim
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  3. Wei Chen
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  4. Xun Chen
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Correspondence to XiangDong Ji or Ning Zhou.

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Zhang, H., Abdukerim, A., Chen, W. et al. Dark matter direct search sensitivity of the PandaX-4T experiment. Sci. China Phys. Mech. Astron. 62, 31011 (2019). https://doi.org/10.1007/s11433-018-9259-0

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  • DOI: https://doi.org/10.1007/s11433-018-9259-0

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