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Signal Response Model in PandaX-4T

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arxiv 2403.04239 v3 pith:7DTDKOXI submitted 2024-03-07 physics.ins-det hep-ex

Yunyang Luo , Zihao Bo , Shibo Zhang , Abdusalam Abdukerim , Chen Cheng , Wei Chen , Xun Chen , Yunhua Chen
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Zhaokan Cheng Xiangyi Cui Yingjie Fan Deqing Fang Changbo Fu Mengting Fu Lisheng Geng Karl Giboni Linhui Gu Xuyuan Guo Chencheng Han Ke Han Changda He Jinrong He Di Huang Yanlin Huang Zhou Huang Ruquan Hou Xiangdong Ji Yonglin Ju Chenxiang Li Jiafu Li Mingchuan Li Shu Li Shuaijie Li Qing Lin Jianglai Liu Xiaoying Lu Lingyin Luo Wenbo Ma Yugang Ma Yajun Mao Nasir Shaheed Yue Meng Xuyang Ning Ningchun Qi Zhicheng Qian Xiangxiang Ren Changsong Shang Xiaofeng Shang Guofang Shen Lin Si Wenliang Sun Andi Tan Yi Tao Anqing Wang Meng Wang Qiuhong Wang Shaobo Wang Siguang Wang Wei Wang Xiuli Wang Zhou Wang Yuehuan Wei Mengmeng Wu Weihao Wu Jingkai Xia Mengjiao Xiao Xiang Xiao Pengwei Xie Binbin Yan Xiyu Yan Jijun Yang Yong Yang Chunxu Yu Jumin Yuan Ying Yuan Zhe Yuan Xinning Zeng Dan Zhang Minzhen Zhang Peng Zhang Shu Zhang Tao Zhang Yingxin Zhang Yuanyuan Zhang Li Zhao Qibin Zheng Jifang Zhou Ning Zhou Xiaopeng Zhou Yong Zhou Yubo Zhou
This is my paper · ORCID
classification physics.ins-dethep-ex
keywords signalmodelpandax-4tresponsedarkmattersignalscrucial
verification ladder T0 review T1 audit T2 compute T3 formal
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PandaX-4T experiment is a deep-underground dark matter direct search experiment that employs a dual-phase time projection chamber with a sensitive volume containing 3.7 tonne of liquid xenon. The detector of PandaX-4T is capable of simultaneously collecting the primary scintillation and ionization signals, utilizing their ratio to discriminate dark matter signals from background sources such as gamma rays and beta particles. The signal response model plays a crucial role in interpreting the data obtained by PandaX-4T. It describes the conversion from the deposited energy by dark matter interactions to the detectable signals within the detector. The signal response model is utilized in various PandaX-4T results. This work provides a comprehensive description of the procedures involved in constructing and parameter-fitting the signal response model for the energy range of approximately 1 keV to 25 keV for electronic recoils and 6 keV to 90 keV for nuclear recoils. It also covers the signal reconstruction, selection, and correction methods, which are crucial components integrated into the signal response model.

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Cited by 2 Pith papers

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  1. Inelastic Scattering Effects on Attenuation of Boosted Dark Matter

    hep-ph 2026-07 conditional novelty 6.0 of 10

    Resonant excitation of nucleons into Δ(1232) during Earth passage is a non-negligible attenuation channel for boosted dark matter at E_χ ≈ 1–2 GeV, lowering the PandaX-4T upper bound on σ̄_n in the heavy-mediator regime.

  2. Characterization of Hamamatsu R11410-23 Photomultiplier Tubes and Performance in the PandaX-4T Detector

    hep-ex 2025-05 conditional novelty 5.0 of 10

    The PandaX-4T collaboration reports the first full characterization of 422 R11410-23 PMTs and documents their stable in-situ performance during the commissioning run.

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