{
  "abstract": "We study chiral matching of dimension-7 (dim-7) baryon-number-violating operators in low-energy effective field theory. We show that all dim-7 operators can be classified into two distinct Lorentz structures and their chirality-flipped counterparts, and we derive their leading-order hadronic realizations in chiral perturbation theory. As an application, we systematically investigate $ΔI=3/2$ nucleon decays, including $n\\to \\ell^-π^+$, $p\\to \\ell^- π^+π^+$, and $n\\to \\ell^- π^+ (π^0, η)$, with $\\ell=e,~μ$. Using existing experimental bounds on $n\\to \\ell^-π^+$, we set stringent constraints on the relevant Wilson coefficients and derive improved lower limits on the partial lifetimes of the six three-body modes from their correlations with the two-body modes. We further present a concrete ultraviolet model that generates the dim-7 operators and the associated $ΔI=3/2$ nucleon decays at leading order. Our results pave the way for exploring dim-7 contributions to nucleon decays and motivate future searches for these exotic modes.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2609.08785",
  "author_total": 1,
  "authors": [
    {
      "name": "Xiao-Dong Ma"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/3baakv26gwdh1.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2609.08785",
  "fulltext_url": null,
  "id": "3baakv26gwdh1",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2609.08785",
  "language": null,
  "licence": "CC-BY-4.0",
  "licence_label": "CC BY 4.0",
  "licence_source": "article",
  "licence_url": "http://creativecommons.org/licenses/by/4.0/",
  "metadata_licence": "CC0-1.0",
  "native_subjects": [
    [
      "arxiv",
      "hep-ph"
    ],
    [
      "openalex",
      "3106|Particle physics theoretical and experimental studies"
    ]
  ],
  "openalex": "W7212038223",
  "pdf_url": "https://arxiv.org/pdf/2609.08785",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-08",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/3baakv26gwdh1.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:19:52Z",
      "native_id": "2609.08785",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2609.08785"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:hep-ph",
      "subfield": "high-energy"
    }
  ],
  "title": "Chiral matching of dimension-7 baryon-number-violating operators and application to $ΔI=3/2$ nucleon decays",
  "title_text": "Chiral matching of dimension-7 baryon-number-violating operators and application to ΔI=3/2 nucleon decays",
  "type": "preprint",
  "updated_at": "2026-10-30T12:19:52Z",
  "url": "https://research.draconitic.com/paper/3baakv26gwdh1",
  "venue": "arXiv",
  "versions": []
}