Determination of Double Beta Decay Half-Life of (136)Xe with the PandaX-4T Natural Xenon Detector

利用 PandaX-4T 天然氙探测器测定 (136)Xe 的双β衰变半衰期

阅读：1
作者：Si,Lin,Cheng,Zhaokan,Abdukerim,Abdusalam,Bo,Zihao,Chen,Wei,Chen,Xun,Chen,Yunhua,Cheng,Chen,Cheng,Yunshan,Cui,Xiangyi,Fan,Yingjie,Fang,Deqing,Fu,Changbo,Fu,Mengting,Geng,Lisheng,Giboni,Karl,Gu,Linhui,Guo,Xuyuan,Han,Ke,He,Changda,He,Jinrong,Huang,Di,Huang,Yanlin,Huang,Zhou,Hou,Ruquan,Ji,Xiangdong,Ju,Yonglin,Li,Chenxiang,Li,Jiafu,Li,Mingchuan,Li,Shu,Li,Shuaijie,Lin,Qing,Liu,Jianglai,Lu,Xiaoying,Luo,Lingyin,Luo,Yunyang,Ma,Wenbo,Ma,Yugang,Mao,Yajun,Meng,Yue,Shaheed,Nasir,Shang,Xiaofeng,Ning,Xuyang,Qi,Ningchun,Qian,Zhicheng,Ren,Xiangxiang,Shang,Changsong,Shen,Guofang,Sun,Wenliang,Tan,Andi,Tao,Yi,Wang,Anqing,Wang,Meng,Wang,Qiuhong,Wang,Shaobo,Wang,Siguang,Wang,Wei,Wang,Xiuli,Wang,Zhou,Wei,Yuehuan,Wu,Mengmeng,Wu,Weihao,Xia,Jingkai,Xiao,Mengjiao,Xiao,Xiang,Xie,Pengwei,Yan,Binbin,Yan,Xiyu,Yang,Jijun,Yang,Yong,Yu,Chunxu,Yuan,Jumin,Yuan,Ying,Yuan,Zhe,Zhang,Dan,Zhang,Minzhen,Zhang,Peng,Zhang,Shibo,Zhang,Shu,Zhang,Tao,Zhao,Li,Zheng,Qibin,Zhou,Jifang,Zhou,Ning,Zhou,Xiaopeng,Zhou,Yong
期刊：影响因子：
时间：2022起止号：2022;2022:9798721
doi：10.34133/2022/9798721

Abstract

Precise measurement of two-neutrino double beta decay (DBD) half-life is an important step for the searches of Majorana neutrinos with neutrinoless double beta decay. We report the measurement of DBD half-life of (136)Xe using the PandaX-4T dual-phase Time Projection Chamber (TPC) with 3.7-tonne natural xenon and the first 94.9-day physics data release. The background model in the fiducial volume is well constrained in situ by events in the outer active region. With a (136)Xe exposure of 15.5 kg-year, we establish the half-life as 2.27 ± 0.03(stat.) ± 0.10(syst.) × 10(21) years. This is the first DBD half-life measurement with natural xenon and demonstrates the physics capability of a large-scale liquid xenon TPC in the field of rare event searches.

特别声明

1、本页面内容包含部分的内容是基于公开信息的合理引用；引用内容仅为补充信息，不代表本站立场。

2、若认为本页面引用内容涉及侵权，请及时与本站联系，我们将第一时间处理。

3、其他媒体/个人如需使用本页面原创内容，需注明“来源：[生知库]”并获得授权；使用引用内容的，需自行联系原作者获得许可。

4、投稿及合作请联系：info@biocloudy.com。