{
  "abstract": "We theoretically study the line shape of the experiment for $Ω(2012)$ production in the $Ξ^- π^+ K^-$ and $Ξ^0 K^-$ decay modes, reflecting the $Ξ^* \\bar K$ and $Ξ\\bar K$ decay modes, from the perspective that the $Ω(2012)$ is a molecular state dynamically generated from the interaction of the $Ξ^* \\bar K $ and $Ωη$, coupled channels with $Ξ\\bar K$ as a decay channel. We show the consistency of the picture with the experimental mass distributions, giving support to the molecular picture for the $Ω(2012)$ state. We also call the attention to the sensitivity of the results to the cut imposed on the $πΞ$ invariant mass, and suggest a different method to obtain the ratio $R^{Ξπ\\bar K}_{Ξ\\bar K}$ of the three-body to two-body decay widths used so far as a test of the molecular picture. We stress that the direct comparison with the experimental mass distributions done here is a more stringent test of the molecular nature of the $Ω(2012)$ state than the comparison of the ratio $R^{Ξπ\\bar K}_{Ξ\\bar K}$ which has been so far obtained using different criteria.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2609.20654",
  "author_total": 2,
  "authors": [
    {
      "name": "Natsumi Ikeno"
    },
    {
      "name": "Eulogio Oset"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/484xvj8kk0srp.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2609.20654",
  "fulltext_url": null,
  "id": "484xvj8kk0srp",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2609.20654",
  "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",
      "hep-ph"
    ],
    [
      "arxiv",
      "nucl-th"
    ],
    [
      "openalex",
      "3106|Quantum Chromodynamics and Particle Interactions"
    ]
  ],
  "openalex": "W7213595435",
  "pdf_url": "https://arxiv.org/pdf/2609.20654",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-17",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/484xvj8kk0srp.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:22:19Z",
      "native_id": "2609.20654",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2609.20654"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:hep-ex",
      "subfield": "high-energy"
    },
    {
      "field": "physics",
      "origin": "arxiv:nucl-th",
      "subfield": "nuclear"
    }
  ],
  "title": "Line shapes of $Ω(2012)$ production in the $Ξ\\bar K $ and $Ξπ\\bar K$ decay channels",
  "title_text": "Line shapes of Ω(2012) production in the $Ξ\\bar K $ and ΞπK̅ decay channels",
  "type": "preprint",
  "updated_at": "2026-10-30T12:22:19Z",
  "url": "https://research.draconitic.com/paper/484xvj8kk0srp",
  "venue": "arXiv",
  "versions": []
}