Dark Matter Search Results from the PandaX-4T Commissioning Run.

作者：Y. Meng, Zhou Wang, Yi Tao, A. Abdukerim, Zihao Bo, Wei Chen, Xun Chen, Yunhua Chen, Chen Cheng, Yun-Zhong Cheng, X. Cui, Yingjie Fan, D. Fang, C. Fu, M. Fu, Li-Hui Geng, K. Giboni, L. Gu, Xuyuan Guo, Kyong Chol Han, Changda He, Jinrong He, Di Huang, Yanlin Huang, Zhou Huang, R. Hou, X. Ji, Y. Ju, Chenxiang Li, Mingchuan Li, Shu Li, Shuaijie Li, Qingjie Lin, Jianglai Liu, Xiaoying Lu, Lingyin Luo, Wenbo Ma, Yugang Ma, Y. Mao, N. Shaheed, X. Ning, N. Qi, Zhicheng Qian, X. Ren, C. Shang, Guofang Shen, L. Si, Wen-wei Sun, A. Tan, Anqing Wang, Meng Wang, Qiuhong Wang, Shaobo Wang, Siguang Wang, Wen Wang, Xiuli Wang, Mengmeng Wu, Weihao Wu, Jingkai Xia, Meng-Meng Xiao, Xi Xiao, P. Xie, B. Yan, Xiyu Yan, Jijun Yang, Yong Yang, Chun-xu Yu, Jumin Yuan, Ying Yuan, Dan Zhang, Minzhen Zhang, Peng Zhang, Tao Zhang, Li Zhao, Q. Zheng, Jifang Zhou, N. Zhou, Xiaopeng Zhou, Yong Zhou · 发表于：Physical Review Letters · 年份：2021 · DOI：10.1103/physrevlett.127.261802 · 被引用次数：431 · 研究领域：Physics、Medicine

We report the first dark matter search results using the commissioning data from PandaX-4T. Using a time projection chamber with 3.7 tonne of liquid xenon target and an exposure of 0.63  tonne·year, 1058 candidate events are identified within an approximate nuclear recoil energy window between 5 and 100 keV. No significant excess over background is observed. Our data set a stringent limit to the dark matter-nucleon spin-independent interactions, with a lowest excluded cross section (90% C.L.) of 3.8×10^{-47}  cm^{2} at a dark matter mass of 40  GeV/c^{2}.