TY - JOUR
T1 - Searching for Two-Neutrino and Neutrinoless Double Beta Decay of Xe 134 with the PandaX-4T Experiment
AU - PandaX Collaboration
AU - Yan, Xiyu
AU - Cheng, Zhaokan
AU - Abdukerim, Abdusalam
AU - Bo, Zihao
AU - Chen, Wei
AU - Chen, Xun
AU - Cheng, Chen
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, Junting
AU - Huang, Zhou
AU - Hou, Ruquan
AU - Hou, Yu
AU - Ji, Xiangdong
AU - Ju, Yonglin
AU - Li, Chenxiang
AU - Li, Jiafu
AU - Li, Mingchuan
AU - Li, Shuaijie
AU - Li, Tao
AU - Lin, Qing
AU - Liu, Jianglai
AU - Lu, Xiaoying
AU - Lu, Congcong
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 - Shaheed, Nasir
AU - Tan, Andi
N1 - Publisher Copyright:
© 2024 American Physical Society.
PY - 2024/4/12
Y1 - 2024/4/12
N2 - Xe134 is a candidate isotope for neutrinoless double beta decay (0νββ) search. In addition, the two-neutrino case (2νββ) allowed by the standard model of particle physics has not yet been observed. With the 656-kg natural xenon in the fiducial volume of the PandaX-4T detector, which contains 10.4% of Xe134, and its initial 94.9-day exposure, we have established the most stringent constraints on 2νββ and 0νββ of Xe134 half-lives, with limits of 2.8×1022 yr and 3.0×1023 yr at 90% confidence level, respectively. The 2νββ (0νββ) limit surpasses the previously reported best result by a factor of 32 (2.7), highlighting the potential of large monolithic natural xenon detectors for double beta decay searches.
AB - Xe134 is a candidate isotope for neutrinoless double beta decay (0νββ) search. In addition, the two-neutrino case (2νββ) allowed by the standard model of particle physics has not yet been observed. With the 656-kg natural xenon in the fiducial volume of the PandaX-4T detector, which contains 10.4% of Xe134, and its initial 94.9-day exposure, we have established the most stringent constraints on 2νββ and 0νββ of Xe134 half-lives, with limits of 2.8×1022 yr and 3.0×1023 yr at 90% confidence level, respectively. The 2νββ (0νββ) limit surpasses the previously reported best result by a factor of 32 (2.7), highlighting the potential of large monolithic natural xenon detectors for double beta decay searches.
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U2 - 10.1103/PhysRevLett.132.152502
DO - 10.1103/PhysRevLett.132.152502
M3 - Article
C2 - 38682998
AN - SCOPUS:85190344962
SN - 0031-9007
VL - 132
JO - Physical review letters
JF - Physical review letters
IS - 15
M1 - 152502
ER -