PandaX-4T实验中的中子诱发核反冲本底
高能物理 - 实验
2022-08-01 v2 仪器与探测器
摘要
中子诱发的核反冲本底对PandaX-4T液氙实验中的暗物质搜寻至关重要。本文研究了液氙中中子本底的特征，并通过三种方法评估了其在单散射核反冲事件中的贡献。第一种方法完全基于蒙特卡洛模拟。后两种为数据驱动方法，分别利用了数据中的多重散射信号与高能信号。在曝光量为0.63吨·年的PandaX-4T调试数据中，所有这些方法给出一致结果：在约5至100 keV的核反冲能量窗口内，暗物质信号区有个中子诱发本底。
引用
@article{arxiv.2206.06087,
title = {Neutron-induced nuclear recoil background in the PandaX-4T experiment},
author = {Zhou Huang and Guofang Shen and Qiuhong Wang and Abdusalam Abdukerim and Zihao Bo and Wei Chen and Xun Chen and Yunhua Chen and Chen Cheng and Yunshan Cheng and Xiangyi Cui and Yingjie Fan and Deqing Fang and Changbo Fu and Mengting Fu and Lisheng Geng and Karl Giboni and Linhui Gu and Xuyuan Guo and Chencheng Han and Ke Han and Changda He and Jinrong He and Di Huang and Yanlin Huang and Ruquan Hou and Xiangdong Ji and Yonglin Ju and Chenxiang Li and Mingchuan Li and Shu Li and Shuaijie Li and Qing Lin and Jianglai Liu and Xiaoying Lu and Lingyin Luo and Wenbo Ma and Yugang Ma and Yajun Mao and Yue Meng and Xuyang Ning and Ningchun Qi and Zhicheng Qian and Xiangxiang Ren and Nasir Shaheed and Changsong Shang and Lin Si and Wenliang Sun and Andi Tan and Yi Tao and Anqing Wang and Meng Wang and Shaobo Wang and Siguang Wang and Wei Wang and Xiuli Wang and Zhou Wang and Mengmeng Wu and Weihao Wu and Jingkai Xia and Mengjiao Xiao and Xiang Xiao and Pengwei Xie and Binbin Yan and Xiyu Yan and Jijun Yang and Yong Yang and Chunxu Yu and Jumin Yuan and Ying Yuan and Dan Zhang and Minzhen Zhang and Peng Zhang and Tao Zhang and Li Zhao and Qibin Zheng and Jifang Zhou and Ning Zhou and Xiaopeng Zhou and Yong Zhou},
journal= {arXiv preprint arXiv:2206.06087},
year = {2022}
}
备注
14 pages, 14 figures, 6 tables