{"paper":{"title":"Searching for Neutrino-less Double Beta Decay of $^{136}$Xe with PandaX-II Liquid Xenon Detector","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["nucl-ex","physics.ins-det"],"primary_cat":"hep-ex","authors_text":"Abdusalam Abdukerim, Andi Tan, Anqing Wang, Binbin Yan, Changbo Fu, Changda He, Changsong Shang, Chunxu Yu, Dan Zhang, Deqing Fang, Di Huang, Franco Giuliani, Hongguang Zhang, Hongwei Wang, Huaxuan Liu, Jianglai Liu, Jifang Zhou, Jijun Yang, Jingkai Xia, Jinhua Ning, Jumin Yuan, Kaixiang Ni, Karl Giboni, Ke Han, Kun Liang, Linhui Gu, Lin Si, Lisheng Geng, Li Zhao, Mengjiao Xiao, Mengmeng Wu, Meng Wang, Ning Zhou, Parinya Namwongsa, Peng Ji, Pengwei Xie, Qibin Zheng, Qiuhong Wang, Shiyong Wu, Siguang Wang, Tao Zhang, Wei Chen, Wenbo Ma, Xiangdong Ji, Xiangxiang Ren, Xiangyi Cui, Xiaopeng Zhou, Xiuli Wang, Xun Chen, Xuyang Ning, Xuyuan Guo, Yajun Mao, Yan Huang, Yanlin Huang, Yihui Lai, Yingjie Fan, Yonglin Ju, Yong Yang, Yue Meng, Yugang Ma, Yunhua Chen, Zhou Huang, Zhou Wang","submitted_at":"2019-06-27T06:43:15Z","abstract_excerpt":"We report the Neutrino-less Double Beta Decay (NLDBD) search results from PandaX-II dual-phase liquid xenon time projection chamber. The total live time used in this analysis is 403.1 days from June 2016 to August 2018. With NLDBD-optimized event selection criteria, we obtain a fiducial mass of 219 kg of natural xenon. The accumulated xenon exposure is 242 kg$\\cdot$yr, or equivalently 22.2 kg$\\cdot$yr of $^{136}$Xe exposure. At the region around $^{136}$Xe decay Q-value of 2458 keV, the energy resolution of PandaX-II is 4.2%. We find no evidence of NLDBD in PandaX-II and establish a lower limi"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1906.11457","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/1906.11457/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}