Dark Matter Search Results from <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mn>1.54</mml:mn><mml:mtext> </mml:mtext><mml:mtext> </mml:mtext><mml:mi>Tonne</mml:mi><mml:mo>·</mml:mo><mml:mi>Year</mml:mi></mm
In this Letter, we report the dark matter search results from the commissioning run (Run0) and the first science run (Run1) of the PandaX-4T experiment. The two datasets were processed with a unified procedure, with the Run1 data treated blindly. The data processing is improved compared to previous work, unifying the low-level signal reconstruction in a wide energy range up to 120 keV. With a total exposure of 1.54 tonne·year, no significant excess of nuclear recoil events is found. The lowest 90% confidence level exclusion on the spin-independent cross section is 1.6×10^{-47} cm^{2} at a dark matter mass of 40 GeV/c^{2}. Our results represent the most stringent constraint for a dark matter mass above 100 GeV/c^{2}.
Authors
- Wei Zhang (ORCID: https://orcid.org/0000-0002-5111-4097)
- Yue Meng
- Xiangpan Ji (ORCID: https://orcid.org/0000-0002-0579-8467)
- Mengjiao Xiao (ORCID: https://orcid.org/0000-0002-6397-617X)
- Yonglin Ju (ORCID: https://orcid.org/0000-0002-9534-787X)
- Lingyin Luo
- J. Huang (ORCID: https://orcid.org/0000-0003-1800-6761)
- Yunhua Chen (ORCID: https://orcid.org/0000-0002-5543-8152)
- Ruquan Hou
- Zhao Li (ORCID: https://orcid.org/0000-0002-9685-8049)
- Zhaokan Cheng (ORCID: https://orcid.org/0000-0001-8197-9174)
- Zhixing Gao (ORCID: https://orcid.org/0009-0007-1529-1145)
- Peihua Ye
- Chenxiang Li
- Jinrong He (ORCID: https://orcid.org/0000-0003-4040-4766)
- Peng Zhang (ORCID: https://orcid.org/0000-0001-5345-3810)
- Shunyu Yao (ORCID: https://orcid.org/0000-0001-6683-2713)
- Ningchun Qi
- Zhizhen Zhou
- Yi Tao (ORCID: https://orcid.org/0000-0002-6424-8131)
- Binbin Yan (ORCID: https://orcid.org/0000-0001-7847-3084)
- Jiaxu Zhou (ORCID: https://orcid.org/0000-0002-7720-0700)
- Xuyang Ning (ORCID: https://orcid.org/0009-0002-1072-2157)
- Yuan Wu (ORCID: https://orcid.org/0000-0003-0952-6132)
- Mingchuan Li
- Shuaijie Li (ORCID: https://orcid.org/0000-0002-1172-5168)
- Yunyang Luo
- Yubo Zhou (ORCID: https://orcid.org/0000-0002-0694-3697)
- Q. Lin (ORCID: https://orcid.org/0000-0003-1644-5517)
- Dong Shan
- Jiamin Wang (ORCID: https://orcid.org/0000-0002-3200-057X)
- Wei Chen (ORCID: https://orcid.org/0000-0001-8366-8978)
- Yingjie 英杰 Fan 樊 (ORCID: https://orcid.org/0000-0002-7991-9057)
- Tao Zhang (ORCID: https://orcid.org/0000-0002-1711-2143)
- Meng Wang (ORCID: https://orcid.org/0000-0002-8941-8061)
- Zhou Wang (ORCID: https://orcid.org/0000-0003-4413-4441)
- Xiuli Wang (ORCID: https://orcid.org/0000-0003-2379-4897)
- Shu Zhang (ORCID: https://orcid.org/0000-0002-3431-744X)
- Yu Hou
- Yifan Xu
- Zhe Yuan (ORCID: https://orcid.org/0000-0002-3656-8840)
- Wei Wang (ORCID: https://orcid.org/0000-0002-8501-8036)
- Qiuhong Wang (ORCID: https://orcid.org/0009-0006-3789-445X)
- Jifang Zhou
- Shaobo Wang (ORCID: https://orcid.org/0000-0001-8878-9496)
- Xun Chen (ORCID: https://orcid.org/0000-0001-7961-7908)
- Di Huang (ORCID: https://orcid.org/0000-0002-5371-8169)
- Ying Yuan (ORCID: https://orcid.org/0000-0002-2706-9177)
- Jiayi Zhou (ORCID: https://orcid.org/0000-0001-7204-2662)
- Zichao Guo (ORCID: https://orcid.org/0000-0003-1544-9305)
- Xuming Wang (ORCID: https://orcid.org/0000-0002-2266-8816)
- Yingxin Zhang (ORCID: https://orcid.org/0000-0001-7586-2746)
- Tao Li (ORCID: https://orcid.org/0009-0003-0074-1220)
- Xiang Xiao (ORCID: https://orcid.org/0000-0001-6644-6118)
- Weihao Wu (ORCID: https://orcid.org/0000-0001-6239-2984)
- Jiafu Li (ORCID: https://orcid.org/0000-0001-6500-887X)
- Xiaoying Lü
- Xiaofeng Shang
- Zhicheng Qian
- Xinning Zeng
- Wenliang Sun (ORCID: https://orcid.org/0000-0002-2137-9123)
- Guanbo Wang
- Ke Han
- Chunxu Yu (ORCID: https://orcid.org/0000-0002-8919-2197)
- Manbin Shen
- Xiangdong Ji
- Deqing Fang
- Changda He
- Yuehuan Wei (ORCID: https://orcid.org/0009-0008-4753-5666)
- Xiyuan Shao
- Xunan Guo (ORCID: https://orcid.org/0009-0009-1023-949X)
- Jianglai Liu
- Anqing Wang (ORCID: https://orcid.org/0009-0002-1478-3897)
- Xiangxiang Ren (ORCID: https://orcid.org/0000-0002-1536-3344)
- Guofang Shen
- Siguang Wang
- N. Zhou (ORCID: https://orcid.org/0000-0002-1775-2511)
- Xiaopeng Zhou
- Yajun Mao
- Zhiyuan Li
- Congcong Lu (ORCID: https://orcid.org/0009-0006-0149-0613)
- Xiangyi Cui
- Xuyuan Guo
- Minzhen Zhang
- Youhui Yun
- Wenbo Ma (ORCID: https://orcid.org/0000-0002-4767-7209)
- Yugang Ma
- Kaizhi Xiong
- Karl Giboni
- Lisheng Geng
- Binyu Pang
- Chencheng Han
- Houqi Huang
- Xiyu Yan
- Shibo Zhang (ORCID: https://orcid.org/0009-0009-1545-8106)
- Zihao Bo
- Hao Wang (ORCID: https://orcid.org/0000-0001-5461-0689)
- Yang Zhang (ORCID: https://orcid.org/0000-0002-3588-4702)
- Yong Yang (ORCID: https://orcid.org/0000-0002-4241-9972)
- Yuanyuan Zhang (ORCID: https://orcid.org/0000-0001-7426-1092)
- Lei Wang (ORCID: https://orcid.org/0000-0003-0734-7026)
Institutions
- University of Science and Technology of China (CN)
- Shandong University (CN)
- Shanghai Jiao Tong University (CN)
- Yantai University (CN)
- Chinese Academy of Sciences (CN)
- Peking University (CN)
- Nankai University (CN)
- Fudan University (CN)
- Chengdu University of Technology (CN)
- University of Maryland, College Park (US)
- Beihang University (CN)
Publication Details
- Journal
- Physical Review Letters
- Published
- 2025-01-09
- DOI
- https://doi.org/10.1103/physrevlett.134.011805
- Citations
- 73
- Primary Topic
- Dark Matter and Cosmic Phenomena
- Type
- article
- Field-Weighted Citation Impact
- 136.52
Funders
- National Science Foundation
- Tencent
- National Natural Science Foundation of China
- Chinese Academy of Sciences
- Science and Technology Commission of Shanghai Municipality
- Shanghai Jiao Tong University
- CAS Center for Excellence in Particle Physics
- Office of Science
- National Key Research and Development Program of China
- Fundamental Research Funds for the Central Universities