{
  "abstract": "Baryon-number-violating decays with missing energy probe new interactions connecting Standard-Model quarks to light invisible fermions. Such signatures can arise from dimension-six operators coupling three quarks to an SM-singlet fermion $χ$, which escapes detection. With a suitable baryon-number assignment for $χ$, total baryon number is conserved while its violation is apparent in the visible sector. We study the exclusive decays $Λ_c\\toπ\\barχ$ and $Λ_c\\to K\\barχ$, determining the required form factors using light-cone sum rules with pion and kaon distribution amplitudes. The calculation includes leading-order two-particle contributions up to twist four and factorisable four-particle terms. Two $Λ_c$ interpolating currents are employed to assess the current dependence. Using single-operator benchmarks based on collider bounds, we obtain branching fractions of order $10^{-7}$ over sizeable parts of the physical region, with uncertainty envelopes reaching $10^{-6}$ in some scenarios. These are indicative estimates within the retained light-cone expansion. We compare with existing chiral-perturbation-theory and QCD-factorisation estimates and discuss experimental prospects. Future data from STCF and Belle II could probe part of the predicted range, while FCC-ee could reach smaller branching fractions.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2610.37987",
  "author_total": 1,
  "authors": [
    {
      "name": "Ali Mohamed"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/6rtxsqcyzjgr0.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2610.37987",
  "fulltext_url": null,
  "id": "6rtxsqcyzjgr0",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2610.37987",
  "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": null,
  "pdf_url": "https://arxiv.org/pdf/2610.37987",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-27",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/6rtxsqcyzjgr0.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:36:23Z",
      "native_id": "2610.37987",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2610.37987"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:hep-ph",
      "subfield": "high-energy"
    }
  ],
  "title": "Baryon-Number Violating $Λ_c$ Decays from Light-Cone Sum Rules",
  "title_text": "Baryon-Number Violating Λ_c Decays from Light-Cone Sum Rules",
  "type": "preprint",
  "updated_at": "2026-11-01T12:20:44Z",
  "url": "https://research.draconitic.com/paper/6rtxsqcyzjgr0",
  "venue": "arXiv",
  "versions": []
}