Neutron-induced nuclear recoil background in the PandaX-4T experiment

作     者：Zhou Huang Guofang Shen Qiuhong Wang Abdusalam Abdukerim Zihao Bo Wei Chen Xun Chen Yunhua Chen Chen Cheng Yunshan 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 Ruquan Hou Xiangdong Ji Yonglin Ju Chenxiang Li Mingchuan Li Shu Li Shuaijie Li Qing Lin Jianglai Liu Xiaoying Lu Lingyin Luo Wenbo Ma Yugang Ma Yajun Mao Yue Meng Xuyang Ning Ningchun Qi Zhicheng Qian Xiangxiang Ren Nasir Shaheed Changsong Shang Lin Si Wenliang Sun Andi Tan Yi Tao Anqing Wang Meng Wang Shaobo Wang Siguang Wang Wei Wang Xiuli Wang Zhou Wang 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 Dan Zhang Minzhen Zhang Peng Zhang Tao Zhang Li Zhao Qibin Zheng Jifang Zhou Ning Zhou Xiaopeng Zhou Yong Zhou 黄周;申国防;王秋红;阿布都沙拉木·阿布都克力木;薄子豪;陈葳;谌勋;陈云华;程晨;成云珊;崔祥仪;樊英杰;方德清;符长波;付孟婷;耿立升;Karl Giboni;顾琳慧;郭绪元;韩晨成;韩柯;何昶达;何金荣;黄迪;黄彦霖;侯汝全;季向东;巨永林;李晨翔;李名川;李舒;李帅杰;林箐;刘江来;芦晓盈;罗棱尹;马文博;马余刚;冒亚军;孟月;宁旭阳;祁宁春;钱志成;任祥祥;Nasir Shaheed;商长松;司琳;孙文良;谈安迪;陶奕;王安庆;王萌;王少博;王思广;王为;王秀丽;王舟;武蒙蒙;邬维浩;夏经铠;肖梦姣;肖翔;谢鹏伟;燕斌斌;颜玺雨;杨继军;杨勇;喻纯旭;袁鞠敏;袁影;张丹;张敏祯;张鹏;张涛;赵力;郑其斌;周济芳;周宁;周小朋;周永

作者机构：School of Physics and AstronomyShanghai Jiao Tong UniversityKey Laboratory for Particle Astrophysics and Cosmology(MoE)Shanghai Key Laboratory for Particle Physics and CosmologyShanghai 200240China School of PhysicsBeihang UniversityBeijing 102206China Key Laboratory of Nuclear Physics and Ion-beam Application(MOE)Institute of Modern PhysicsFudan UniversityShanghai 200433China Shanghai Jiao Tong University Sichuan Research InstituteChengdu 610213China Yalong River Hydropower Development CompanyLtd.288 Shuanglin RoadChengdu 610051China School of PhysicsSun Yat-Sen UniversityGuangzhou 510275China Research Center for Particle Science and TechnologyInstitute of Frontier and Interdisciplinary SciencShandong UniversityQingdao 266237China Key Laboratory of Particle Physics and Particle Irradiation of Ministry of EducationShandong UniversityQingdao 266237China Tsung-Dao Lee InstituteShanghai Jiao Tong UniversityShanghai200240China School of PhysicsNankai UniversityTianjin 300071China School of PhysicsPeking UniversityBeijing 100871China Beijing Key Laboratory of Advanced Nuclear Materials and PhysicsBeihang UniversityBeijing102206China School of Physics and MicroelectronicsZhengzhou UniversityZhengzhouHenan 450001China School of Medical Instrument and Food EngineeringUniversity of Shanghai for Science and TechnologyShanghai 200093China Department of PhysicsUniversity of MarylandCollege ParkMaryland 20742USA School of Mechanical EngineeringShanghai Jiao Tong UniversityShanghai 200240China State Key Laboratory of Particle Detection and ElectronicsUniversity of Science and Technology of ChinaHefei 230026China Department of Modern PhysicsUniversity of Science and Technology of ChinaHefei 230026China SJTU Paris Elite Institute of TechnologyShanghai Jiao Tong UniversityShanghai200240China 

出 版 物：《Chinese Physics C》 (中国物理C（英文版）)

年 卷 期：2022年第46卷第11期

页      面：262-274页

核心收录：

学科分类：08[工学] 0827[工学-核科学与技术] 082701[工学-核能科学与工程] 

基　　金：Supported in part by grants from National Science Foundation of China(12090061,12005131,11905128,11925502) the Ministry of Science and Technology of China(2016YFA0400301) the Office of Science and Technology,Shanghai Municipal Government(18JC1410200) 

主　　题：dark matter neutron background multiple scattering high energy gamma 

摘      要：Neutron-induced nuclear recoil background is critical to dark matter searches in the PandaX-4T liquid xenon *** this study,we investigate the features of neutron background in liquid xenon and evaluate its contribution in single scattering nuclear recoil events using three *** first method is fully based on Monte Carlo *** last two are data-driven methods that also use multiple scattering signals and high energy signals in the *** the PandaX-4T commissioning data with an exposure of 0.63 tonne-year,all these methods give a consistent result,i.e.,there are 1.15±0.57 neutron-induced backgrounds in the dark matter signal region within an approximated nuclear recoil energy window between 5 and 100 keV.