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Determination of responses of liquid xenon to low energy electron and nuclear recoils using a PandaX-II detector Supported by a grant from the Ministry of Science and Technology of China (2016YFA0400301), National Science Foundation of China (12090060, 11525522, 11775141, 11755001) and Office of Science and Technology, Shanghai Municipal Government (18JC1410200)
Chinese Physics C ( IF 3.6 ) Pub Date : 2021-07-05 , DOI: 10.1088/1674-1137/abf6c2
Binbin Yan 1, 2 , Abdusalam Abdukerim 1 , Wei Chen 1 , Xun Chen 1, 2 , Yunhua Chen 3 , Chen Cheng 4 , Xiangyi Cui 5 , Yingjie Fan 6 , Deqing Fang 7 , Changbo Fu 7 , Mengting Fu 8 , Lisheng Geng 9, 10 , Karl Giboni 1 , Linhui Gu 1 , Xuyuan Guo 3 , Ke Han 1 , Changda He 1 , Di Huang 1 , Peiyao Huang 11 , Yan Huang 3 , Yanlin Huang 12 , Zhou Huang 1 , Xiangdong Ji 13 , Yonglin Ju 11 , Shuaijie Li 5 , Jianglai Liu 1, 2, 5 , Zhuoqun Lei 11 , Wenbo Ma 1 , Yugang Ma 7, 14 , Yajun Mao 8 , Yue Meng 1, 2 , Kaixiang Ni 1 , Jinhua Ning 3 , Xuyang Ning 1 , Xiangxiang Ren 15 , Changsong Shang 3 , Lin Si 1 , Guofang Shen 9 , Andi Tan 13 , Anqing Wang 15 , Hongwei Wang 14, 16 , Meng Wang 15 , Qiuhong Wang 7, 14 , Siguang Wang 8 , Wei Wang 4 , Xiuli Wang 11 , Zhou Wang 1, 2 , Mengmeng Wu 4 , Shiyong Wu 3 , Weihao Wu 1 , Jingkai Xia 1 , Mengjiao Xiao 13, 17 , Pengwei Xie 5 , Rui Yan 11 , Jijun Yang 1 , Yong Yang 1 , Chunxu Yu 6 , Jumin Yuan 15 , Ying Yuan 1 , Jianfeng Yue 3 , Xinning Zeng 1 , Dan Zhang 13 , Tao Zhang 1, 2 , Li Zhao 1, 2 , Qibin Zheng 12 , Jifang Zhou 3 , Ning Zhou 1 , Xiaopeng Zhou 9
Affiliation  

We present 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 220Rn source, and with 241Am-Be neutron source, in an energy range from 1-25 keV (ER) and 4-80 keV (NR), under the two drift fields, 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 describe the calibration data significantly. The systematic uncertainties of the fitted models are obtained via statistical comparison to the data.



中文翻译:

使用 PandaX-II 检测器测定液态氙对低能电子和核反冲的响应 科技部资助 (2016YFA0400301), 国家自然科学基金 (12090060, 11525522, 11775141, 101755)上海市政府科学技术办公室(18JC1410200)

我们系统地确定了双相氙气时间投射室探测器 PandaX-II 对低能量反冲的响应。电子反冲 (ER) 和核反冲 (NR) 响应分别使用注入的氚化甲烷或220 Rn 源和241 Am-Be 中子源进行校准,能量范围为 1-25 keV (ER) 和 4 -80 keV (NR),在两个漂移场下,400 和 317 V/cm。经验模型用于拟合两种类型的反冲的光输出和电荷输出。最佳拟合模型可以显着地描述校准数据。拟合模型的系统不确定性是通过与数据的统计比较获得的。

更新日期:2021-07-05
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