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24 April 2024

» arxiv » 2008.06485

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A search for solar axions and anomalous neutrino magnetic moment with the complete PandaX-II data
Xiaopeng Zhou ; Xinning Zeng ; Xuyang Ning ; Abdusalam Abdukerim ; Wei Chen ; Xun Chen ; Yunhua Chen ; Chen Cheng ; Xiangyi Cui ; Yingjie Fan ; Deqing Fang ; Changbo Fu ; Mengting Fu ; Lisheng Geng ; Karl Giboni ; Linhui Gu ; Xuyuan Guo ; Ke Han ; Changda He ; Shengming He ; Di Huang ; Yan Huang ; Yanlin Huang ; Zhou Huang ; Xiangdong Ji ; Yonglin Ju ; Shuaijie Li ; Huaxuan Liu ; Jianglai Liu ; Xiaoying Lu ; Wenbo Ma ; Yugang Ma ; Yajun Mao ; Yue Meng ; Kaixiang Ni ; Jinhua Ning ; Xiangxiang Ren ; Changsong Shang ; Guofang Shen ; Lin Si ; Andi Tan ; Anqing Wang ; Hongwei Wang ; Meng Wang ; Qiuhong Wang ; Siguang Wang ; Wei Wang ; Xiuli Wang ; Zhou Wang ; Mengmeng Wu ; Shiyong Wu ; Weihao Wu ; Jingkai Xia ; Mengjiao Xiao ; Pengwei Xie ; Binbin Yan ; Jijun Yang ; Yong Yang ; Chunxu Yu ; Jumin Yuan ; Ying Yuan ; Dan Zhang ; Tao Zhang ; Li Zhao ; Qibin Zheng ; Jifang Zhou ; Ning Zhou ;
Date:	14 Aug 2020
Abstract:	We report a search for new physics signals using the low energy electron recoil events in the complete data set from PandaX-II, in light of the recent event excess reported by XENON1T. The data correspond to a total exposure of 100.7 ton-day with liquid xenon. With robust estimates of the dominant background spectra, we perform sensitive searches on solar axions and neutrinos with enhanced magnetic moment. We find that the axion-electron coupling $g_{Ae}<4.6 imes 10^{-12}$ for an axion mass less than $ m 0.1~keV/c^2$ and the neutrino magnetic moment $mu_{ u}<3.2 imes 10^{-11}mu_{B}$ at 90\% confidence level. The observed excess from XENON1T is within our experimental constraints.
Source:	arXiv, 2008.06485
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