{
  "abstract": "A bstract : Baryon-number-violating (BNV) nucleon decays into a light new particle represent an exciting yet experimentally unexplored frontier. In this work, we systematically study nucleon decays into a dark photon using a low-energy effective field theory extended with a dark photon X , referred to as X LEFT. We first construct a complete set of leading-order BNV X LEFT operators and then perform a systematic matching onto the chiral perturbation theory for operators involving light u , d , s quarks that dominantly contribute to nucleon decays. Within the chiral framework, we derive general expressions for the decay widths of both two- and three-body nucleon decays and analyze the momentum distributions in the latter. Finally, we thoroughly reinterpret the existing experimental data on conventional two-body modes (into a lepton and a meson) to set lower bounds on partial lifetimes of the corresponding three-body modes involving an additional dark photon. These bounds allow us to further set stringent constraints on the X LEFT operators and other correlated decay modes. Our results provide a toolkit for future experimental and theoretical studies of these exotic nucleon decays.",
  "abstract_shown": true,
  "affiliations": [
    "Institute of Quantum Matter, South China Normal University",
    "Guangdong Provincial Key Laboratory of Nuclear Science",
    "Wuyi University"
  ],
  "article_type": null,
  "arxiv": null,
  "author_total": 4,
  "authors": [
    {
      "affs": [
        0,
        1,
        2
      ],
      "name": "Jin-Han Liang",
      "orcid": "0000-0002-6141-216X"
    },
    {
      "affs": [
        0,
        1
      ],
      "name": "Yi Liao",
      "orcid": "0000-0002-1009-5483"
    },
    {
      "affs": [
        0,
        1
      ],
      "name": "Xiao-Dong Ma",
      "orcid": "0000-0001-7207-7793"
    },
    {
      "affs": [
        0,
        1
      ],
      "name": "Xiang Zhao",
      "orcid": "0009-0008-6024-7722"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/cj7stjddxg5na.bib",
  "cited_by": 0,
  "doi": "10.1007/jhep10(2026)100",
  "fulltext_url": null,
  "id": "cj7stjddxg5na",
  "issns": [
    "1029-8479"
  ],
  "landing_url": "https://link.springer.com/10.1007/JHEP10(2026)100",
  "language": null,
  "licence": "CC-BY-4.0",
  "licence_label": "CC BY 4.0",
  "licence_source": "article",
  "licence_url": "https://creativecommons.org/licenses/by/4.0",
  "metadata_licence": null,
  "native_subjects": [
    [
      "openalex",
      "3106|Particle physics theoretical and experimental studies"
    ]
  ],
  "openalex": "W7171392622",
  "pdf_url": "https://link.springer.com/content/pdf/10.1007/JHEP10(2026)100.pdf",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-08",
  "publisher": "Springer Science and Business Media LLC",
  "ris": "https://research.draconitic.com/paper/cj7stjddxg5na.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:18:01Z",
      "native_id": "10.1007/jhep10(2026)100",
      "source": "crossref",
      "url": "https://link.springer.com/10.1007/JHEP10(2026)100"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "openalex:3106|Particle physics theoretical and experimental studies",
      "subfield": "high-energy"
    }
  ],
  "title": "Baryon-number-violating nucleon decays into a dark photon particle",
  "title_text": "Baryon-number-violating nucleon decays into a dark photon particle",
  "type": "peer-reviewed",
  "updated_at": "2026-10-30T12:18:01Z",
  "url": "https://research.draconitic.com/paper/cj7stjddxg5na",
  "venue": "Journal of High Energy Physics",
  "versions": []
}