@article{98b52836eed34827aa354156ef14df84,
title = "Search for double beta decay of 136Xe to the 01+ excited state of 136Ba with PandaX-4T",
abstract = "We perform a search of double beta decay of 136Xe to the excited state, 01+, of 136Ba (2νββ-01+), using the dual-phase xenon detector of PandaX-4T with the first 94.9-day commissioning data. The multi-site events are reconstructed up to the MeV energy scale, which helps to improve the background model significantly. The background contribution from the stainless steel platform outside PandaX-4T cryostat is evaluated for the first time. No significant evidence for 2νββ-01+ is observed, resulting in a lower limit on half-life of 7.5 × 1022 yr at the 90\% confidence level. This is the first experimental limit on such a rare decay in a natural xenon-based detector.",
keywords = "Dark Matter and Double Beta Decay (experiments), Rare Decay",
author = "\{The PandaX collaboration\} and Lingyin Luo and Zihao Bo and Wei Chen and Xun Chen and Yunhua Chen and Zhaokan Cheng and Xiangyi Cui and Yingjie Fan and Deqing Fang and Zhixing Gao and Lisheng Geng and Karl Giboni and Xunan Guo and Xuyuan Guo and Zichao Guo and Chencheng Han and Ke Han and Changda He and Jinrong He and Di Huang and Houqi Huang and Junting Huang and Ruquan Hou and Yu Hou and Xiangdong Ji and Xiangpan Ji and Yonglin Ju and Chenxiang Li and Tao Li and Jiafu Li and Mingchuan Li and Shuaijie Li and Zhiyuan Li and Qing Lin and Jianglai Liu and Congcong Lu and Xiaoying Lu and Yunyang Luo and Wenbo Ma and Yugang Ma and Yajun Mao and Yue Meng and Xuyang Ning and Binyu Pang and Ningchun Qi and Zhicheng Qian and Xiangxiang Ren and Dong Shan and Xiaofeng Shang and Xiaopeng Zhou",
note = "Publisher Copyright: {\textcopyright} The Author(s) 2025.",
year = "2025",
month = may,
doi = "10.1007/JHEP05(2025)089",
language = "英语",
volume = "2025",
journal = "Journal of High Energy Physics",
issn = "1029-8479",
publisher = "Springer Verlag",
number = "5",
}