{
  "abstract": "The observation of neutrinoless quadruple beta decay (0$ν$4$β$) in the absence of neutrinoless double beta decay (0$ν$2$β$) has been argued to provide a strong indication that neutrinos are Dirac particles. We report a search for 0$ν$4$β$ decay of $^{136}\\text{Xe}$ using a total $^{136}\\text{Xe}$ exposure of 148.4 kg$\\cdot$yr, collected during the commissioning and the first science runs of the PandaX-4T experiment. No significant excess of events over the background is observed. A lower limit on the 0$ν$4$β$ decay half-life of $^{136}\\text{Xe}$ is set at 6.01 x $10^{24}$ yr at the 90% confidence level. This result establishes the most stringent constraint on this process in xenon, demonstrating the unique capability of the PandaX-4T detector in probing lepton number violation and shedding light on the fundamental nature of neutrinos.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2609.10048",
  "author_total": 106,
  "authors": [
    {
      "name": "PandaX Collaboration"
    },
    {
      "name": "Zhiyuan Li"
    },
    {
      "name": "Peiyuan Chen"
    },
    {
      "name": "Wei Chen"
    },
    {
      "name": "Xiaohua Chen"
    },
    {
      "name": "Xun Chen"
    },
    {
      "name": "Yunhua Chen"
    },
    {
      "name": "Chen Cheng"
    },
    {
      "name": "Xiangyi Cui"
    },
    {
      "name": "Yuxin Cui"
    },
    {
      "name": "Manna Deng"
    },
    {
      "name": "Roni Dey"
    },
    {
      "name": "Yingjie Fan"
    },
    {
      "name": "Deqing Fang"
    },
    {
      "name": "Xuanye Fu"
    },
    {
      "name": "Zhixing Gao"
    },
    {
      "name": "Yujie Ge"
    },
    {
      "name": "Lisheng Geng"
    },
    {
      "name": "Xunan Guo"
    },
    {
      "name": "Xuyuan Guo"
    },
    {
      "name": "Zichao Guo"
    },
    {
      "name": "Chencheng Han"
    },
    {
      "name": "Ke Han"
    },
    {
      "name": "Changda He"
    },
    {
      "name": "Jinrong He"
    },
    {
      "name": "Ruquan Hou"
    },
    {
      "name": "Houqi Huang"
    },
    {
      "name": "Junting Huang"
    },
    {
      "name": "Yule Huang"
    },
    {
      "name": "Xiangdong Ji"
    },
    {
      "name": "Yonglin Ju"
    },
    {
      "name": "Xiaorun Lan"
    },
    {
      "name": "Chenxiang Li"
    },
    {
      "name": "Mingchuan Li"
    },
    {
      "name": "Peiyuan Li"
    },
    {
      "name": "Shuaijie Li"
    },
    {
      "name": "Tao Li"
    },
    {
      "name": "Yangdong Li"
    },
    {
      "name": "Yuan Li"
    },
    {
      "name": "Qing Lin"
    },
    {
      "name": "Jianglai Liu"
    },
    {
      "name": "Yuanchun Liu"
    },
    {
      "name": "Yunyang Luo"
    },
    {
      "name": "Yugang Ma"
    },
    {
      "name": "Yajun Mao"
    },
    {
      "name": "Yue Meng"
    },
    {
      "name": "Binyu Pang"
    },
    {
      "name": "Ningchun Qi"
    },
    {
      "name": "Xiangxiang Ren"
    },
    {
      "name": "Dong Shan"
    },
    {
      "name": "Xiyuan Shao"
    },
    {
      "name": "Manbin Shen"
    },
    {
      "name": "Xuyan Sun"
    },
    {
      "name": "Yi Tao"
    },
    {
      "name": "Yueqiang Tian"
    },
    {
      "name": "Yuxin Tian"
    },
    {
      "name": "Anqing Wang"
    },
    {
      "name": "Guanbo Wang"
    },
    {
      "name": "Hao Wang"
    },
    {
      "name": "Haoyu Wang"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/9dqn0ktj696q2.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2609.10048",
  "fulltext_url": null,
  "id": "9dqn0ktj696q2",
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  "landing_url": "https://arxiv.org/abs/2609.10048",
  "language": null,
  "licence": "LicenseRef-arXiv-nonexclusive-1.0",
  "licence_label": "arXiv licence",
  "licence_source": "article",
  "licence_url": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
  "metadata_licence": "CC0-1.0",
  "native_subjects": [
    [
      "arxiv",
      "hep-ex"
    ],
    [
      "arxiv",
      "nucl-ex"
    ],
    [
      "openalex",
      "3106|Neutrino Physics Research"
    ]
  ],
  "openalex": "W7212143126",
  "pdf_url": "https://arxiv.org/pdf/2609.10048",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-09",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/9dqn0ktj696q2.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:20:12Z",
      "native_id": "2609.10048",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2609.10048"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:hep-ex",
      "subfield": "high-energy"
    },
    {
      "field": "physics",
      "origin": "arxiv:nucl-ex",
      "subfield": "nuclear"
    }
  ],
  "title": "Search for neutrinoless quadruple beta decay of $^{136}$Xe in PandaX-4T detector",
  "title_text": "Search for neutrinoless quadruple beta decay of ^136Xe in PandaX-4T detector",
  "type": "preprint",
  "updated_at": "2026-10-30T12:20:12Z",
  "url": "https://research.draconitic.com/paper/9dqn0ktj696q2",
  "venue": "arXiv",
  "versions": []
}