Determination of responses of liquid xenon to low energy electron and nuclear recoils using the PandaX-II detector

Binbin Yan; Abdusalam Abdukerim; Wei Chen; Xun Chen; Yunhua Chen; Chen Cheng; Xiangyi Cui; Yingjie Fan; Deqing Fang; Changbo Fu; Mengting Fu; Lisheng Geng; Karl Giboni; Linhui Gu; Xuyuan Guo; Ke Han; Changda He; Di Huang; Peiyao Huang; Yan Huang; Yanlin Huang; Zhou Huang; Xiangdong Ji; Yonglin Ju; Shuaijie Li; Jianglai Liu; Zhuoqun Lei; Wenbo Ma; Yugang Ma; Yajun Mao; Yue Meng; Kaixiang Ni; Jinhua Ningand Xuyang Ning Xiangxiang Ren; Changsong Shang; Lin Si; Guofang Shen; Andi Tan; Anqing Wang; Hongwei Wang; Meng Wang; Qiuhong Wang; Siguang Wang; Wei Wang; Xiuli Wang; Zhou Wang; Mengmeng Wu; Shiyong Wu; Weihao Wu; Jingkai Xia; Mengjiao Xiao; Pengwei Xie; Rui Yan; Jijun Yang; Yong Yang; Chunxu Yu; Jumin Yuan; Ying Yuan; Jianfeng Yue; Xinning Zeng; Dan Zhang; Tao Zhang; Li Zhao; Qibin Zheng; Jifang Zhou; Ning Zhou; Xiaopeng Zhou

doi:10.1088/1674-1137/abf6c2

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arXiv · 2102.09158

Determination of responses of liquid xenon to low energy electron and nuclear recoils using the PandaX-II detector

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Abstract

We report a systematic determination of the responses of PandaX-II, a dual phase xenon time projection chamber detector, to low energy recoils. The electron recoil (ER) and nuclear recoil (NR) responses are calibrated, respectively, with injected tritiated methane or $^{220}$Rn source, and with $^{241}$Am-Be neutron source, within an energy range from $1-25$ keV (ER) and $4-80$ keV (NR), under the two drift fields of 400 and 317 V/cm. An empirical model is used to fit the light yield and charge yield for both types of recoils. The best fit models can well describe the calibration data. The systematic uncertainties of the fitted models are obtained via statistical comparison against the data.

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Binbin Yan, Abdusalam Abdukerim, Wei Chen, Xun Chen, Yunhua Chen, Chen Cheng, Xiangyi Cui, Yingjie Fan, Deqing Fang, Changbo Fu, Mengting Fu, Lisheng Geng, Karl Giboni, Linhui Gu, Xuyuan Guo, Ke Han, Changda He, Di Huang, Peiyao Huang, Yan Huang, Yanlin Huang, Zhou Huang, Xiangdong Ji, Yonglin Ju, Shuaijie Li, Jianglai Liu, Zhuoqun Lei, Wenbo Ma, Yugang Ma, Yajun Mao, Yue Meng, Kaixiang Ni, Jinhua Ningand Xuyang Ning Xiangxiang Ren, Changsong Shang, Lin Si, Guofang Shen, Andi Tan, Anqing Wang, Hongwei Wang, Meng Wang, Qiuhong Wang, Siguang Wang, Wei Wang, Xiuli Wang, Zhou Wang, Mengmeng Wu, Shiyong Wu, Weihao Wu, Jingkai Xia, Mengjiao Xiao, Pengwei Xie, Rui Yan, Jijun Yang, Yong Yang, Chunxu Yu, Jumin Yuan, Ying Yuan, Jianfeng Yue, Xinning Zeng, Dan Zhang, Tao Zhang, Li Zhao, Qibin Zheng, Jifang Zhou, Ning Zhou, Xiaopeng Zhou. 2021-02-18. Determination of responses of liquid xenon to low energy electron and nuclear recoils using the PandaX-II detector. https://doi.org/10.1088/1674-1137%2Fabf6c2

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