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arXiv · 2403.04239

Signal Response Model in PandaX-4T

Yunyang Luo·Zihao Bo·Shibo Zhang·Abdusalam Abdukerim·Chen Cheng·Wei Chen·Xun Chen·Yunhua Chen·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
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Abstract

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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Yunyang Luo, Zihao Bo, Shibo Zhang, Abdusalam Abdukerim, Chen Cheng, Wei Chen, Xun Chen, Yunhua Chen, 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. 2024-03-07. Signal Response Model in PandaX-4T. https://doi.org/10.1103/physrevd.110.023029

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