TY - JOUR
T1 - Search for Light Dark Matter with Ionization Signals in the PandaX-4T Experiment
AU - (PandaX Collaboration)
AU - Li, Shuaijie
AU - Wu, Mengmeng
AU - Abdukerim, Abdusalam
AU - Bo, Zihao
AU - Chen, Wei
AU - Chen, Xun
AU - Chen, Yunhua
AU - Cheng, Chen
AU - Cheng, Zhaokan
AU - Cui, Xiangyi
AU - Fan, Yingjie
AU - Fang, Deqing
AU - Fu, Changbo
AU - Fu, Mengting
AU - Geng, Lisheng
AU - Giboni, Karl
AU - Gu, Linhui
AU - Guo, Xuyuan
AU - Han, Chencheng
AU - Han, Ke
AU - He, Changda
AU - He, Jinrong
AU - Huang, Di
AU - Huang, Yanlin
AU - Huang, Zhou
AU - Hou, Ruquan
AU - Ji, Xiangdong
AU - Ju, Yonglin
AU - Li, Chenxiang
AU - Li, Jiafu
AU - Li, Mingchuan
AU - Li, Shu
AU - Lin, Qing
AU - Liu, Jianglai
AU - Lu, Xiaoying
AU - Luo, Lingyin
AU - Luo, Yunyang
AU - Ma, Wenbo
AU - Ma, Yugang
AU - Mao, Yajun
AU - Meng, Yue
AU - Ning, Xuyang
AU - Qi, Ningchun
AU - Qian, Zhicheng
AU - Ren, Xiangxiang
AU - Shaheed, Nasir
AU - Shang, Changsong
AU - Shang, Xiaofeng
AU - Shen, Guofang
AU - Tan, Andi
N1 - Publisher Copyright:
© 2023 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the "https://creativecommons.org/licenses/by/4.0/"Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. Funded by SCOAP3.
PY - 2023/6/30
Y1 - 2023/6/30
N2 - We report the search results of light dark matter through its interactions with shell electrons and nuclei, using the commissioning data from the PandaX-4T liquid xenon detector. Low energy events are selected to have an ionization-only signal between 60 to 200 photoelectrons, corresponding to a mean nuclear recoil energy from 0.77 to 2.54 keV and electronic recoil energy from 0.07 to 0.23 keV. With an effective exposure of 0.55 tonne·year, we set the most stringent limits within a mass range from 40 MeV/c2 to 10 GeV/c2 for pointlike dark matter-electron interaction, 100 MeV/c2 to 10 GeV/c2 for dark matter-electron interaction via a light mediator, and 3.2 to 4 GeV/c2 for dark matter-nucleon spin-independent interaction. For DM interaction with electrons, our limits are closing in on the parameter space predicted by the freeze-in and freeze-out mechanisms in the early Universe.
AB - We report the search results of light dark matter through its interactions with shell electrons and nuclei, using the commissioning data from the PandaX-4T liquid xenon detector. Low energy events are selected to have an ionization-only signal between 60 to 200 photoelectrons, corresponding to a mean nuclear recoil energy from 0.77 to 2.54 keV and electronic recoil energy from 0.07 to 0.23 keV. With an effective exposure of 0.55 tonne·year, we set the most stringent limits within a mass range from 40 MeV/c2 to 10 GeV/c2 for pointlike dark matter-electron interaction, 100 MeV/c2 to 10 GeV/c2 for dark matter-electron interaction via a light mediator, and 3.2 to 4 GeV/c2 for dark matter-nucleon spin-independent interaction. For DM interaction with electrons, our limits are closing in on the parameter space predicted by the freeze-in and freeze-out mechanisms in the early Universe.
UR - https://www.scopus.com/pages/publications/85164538377
UR - https://www.scopus.com/inward/citedby.url?scp=85164538377&partnerID=8YFLogxK
U2 - 10.1103/PhysRevLett.130.261001
DO - 10.1103/PhysRevLett.130.261001
M3 - Article
C2 - 37450819
AN - SCOPUS:85164538377
SN - 0031-9007
VL - 130
JO - Physical review letters
JF - Physical review letters
IS - 26
M1 - 261001
ER -