TY - JOUR
T1 - Search for Solar Boosted Dark Matter Particles at the PandaX-4T Experiment
AU - PandaX Collaboration
AU - Shen, Guofang
AU - Bo, Zihao
AU - Chen, Wei
AU - Chen, Xun
AU - Chen, Yunhua
AU - Cheng, Zhaokan
AU - Cui, Xiangyi
AU - Fan, Yingjie
AU - Fang, Deqing
AU - Gao, Zhixing
AU - Geng, Lisheng
AU - Giboni, Karl
AU - Guo, Xunan
AU - Guo, Xuyuan
AU - Guo, Zichao
AU - Han, Chencheng
AU - Han, Ke
AU - He, Changda
AU - He, Jinrong
AU - Huang, Di
AU - Huang, Houqi
AU - Huang, Junting
AU - Hou, Ruquan
AU - Hou, Yu
AU - Ji, Xiangdong
AU - Ji, Xiangpan
AU - Ju, Yonglin
AU - Li, Chenxiang
AU - Li, Jiafu
AU - Li, Mingchuan
AU - Li, Shuaijie
AU - Li, Tao
AU - Li, Zhiyuan
AU - Lin, Qing
AU - Liu, Jianglai
AU - Lu, Congcong
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 - Pang, Binyu
AU - Qi, Ningchun
AU - Qian, Zhicheng
AU - Ren, Xiangxiang
AU - Shan, Dong
AU - Zhou, Xiaopeng
N1 - Publisher Copyright:
© 2025 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.
PY - 2025/4/25
Y1 - 2025/4/25
N2 - We present a novel constraint on light dark matter utilizing 1.54 metric ton/year of data acquired from the PandaX-4T dual-phase xenon time projection chamber. This constraint is derived through detecting electronic recoil signals resulting from the interaction with solar-enhanced dark matter flux. Low-mass dark matter particles, lighter than a few MeV/c2, can scatter with the thermal electrons in the Sun. Consequently, with higher kinetic energy, the boosted dark matter component becomes detectable via contact scattering with xenon electrons, resulting in a few keV energy deposition that exceeds the threshold of PandaX-4T. We calculate the expected recoil energy in PandaX-4T considering the Sun's acceleration with heavy mediators and the detection capabilities of the xenon detector. The first experimental search results using the xenon detector yield the most stringent upper limits cross section of 3.51×10-39 cm2 at 0.08 MeV/c2 for a solar boosted dark matter mass ranging from 0.02 to 10 MeV/c2, achieving a 23-fold improvement compared with earlier experimental studies.
AB - We present a novel constraint on light dark matter utilizing 1.54 metric ton/year of data acquired from the PandaX-4T dual-phase xenon time projection chamber. This constraint is derived through detecting electronic recoil signals resulting from the interaction with solar-enhanced dark matter flux. Low-mass dark matter particles, lighter than a few MeV/c2, can scatter with the thermal electrons in the Sun. Consequently, with higher kinetic energy, the boosted dark matter component becomes detectable via contact scattering with xenon electrons, resulting in a few keV energy deposition that exceeds the threshold of PandaX-4T. We calculate the expected recoil energy in PandaX-4T considering the Sun's acceleration with heavy mediators and the detection capabilities of the xenon detector. The first experimental search results using the xenon detector yield the most stringent upper limits cross section of 3.51×10-39 cm2 at 0.08 MeV/c2 for a solar boosted dark matter mass ranging from 0.02 to 10 MeV/c2, achieving a 23-fold improvement compared with earlier experimental studies.
UR - https://www.scopus.com/pages/publications/105003733430
U2 - 10.1103/PhysRevLett.134.161003
DO - 10.1103/PhysRevLett.134.161003
M3 - 文章
C2 - 40344119
AN - SCOPUS:105003733430
SN - 0031-9007
VL - 134
JO - Physical Review Letters
JF - Physical Review Letters
IS - 16
M1 - 161003
ER -