{
  "abstract": "We demonstrate that the $$D_{s0}^{*}(2317)$$ D s 0 ∗ ( 2317 ) can be described as a bound-state pole arising from the coupling between a discrete $$c\\bar{s}(1^3P_0)$$ c s ¯ ( 1 3 P 0 ) state and the DK continuum state in the Lee–Friedrichs model. The elementariness and compositeness of the $$D_{s0}^{*}(2317)$$ D s 0 ∗ ( 2317 ) are determined to be about $$Z:X\\approx 51.1 \\%:48.9\\%$$ Z : X ≈ 51.1 % : 48.9 % , indicating a nearly equal admixture of compact quark-model state and hadronic molecular components. The decay width of $$D_{s0}^{*}(2317)\\rightarrow D_s^{+}\\pi ^0$$ D s 0 ∗ ( 2317 ) → D s + π 0 is evaluated within the quark rearrangement framework. The transition $$c\\bar{s}(1^3P_0)\\rightarrow D_s\\pi ^0$$ c s ¯ ( 1 3 P 0 ) → D s π 0 proceeds via the OZI-allowed $$c\\bar{s}(1^3P_0)-D_s\\eta $$ c s ¯ ( 1 3 P 0 ) - D s η coupling followed by $$\\eta -\\pi ^0$$ η - π 0 mixing, which serves as the primary source of isospin violation in this channel. The coupling between DK and $$D_s\\pi ^0$$ D s π 0 is computed in a quark rearrangement model, where the isospin violation effect originates from the mass difference between the $$D^0K^+$$ D 0 K + and $$D^+K^0$$ D + K 0 thresholds. The parameters of the scheme shares the same ones with those of the underlying potential model and only the vacuum production strength is adjusted to reproduce the physical $$D_{s0}^{*}(2317)$$ D s 0 ∗ ( 2317 ) mass. We examine the sensitivity of our results to the only free parameter, the pair-creation strength $$\\gamma $$ γ , and discuss the systematic uncertainties associated with the truncation of coupled channels and the underlying phenomenological potential model. This calculation may shed more insight to the nature of exotic $$D_{s0}^{*}(2317)$$ D s 0 ∗ ( 2317 ) state and its isospin-breaking decay properties.",
  "abstract_shown": true,
  "affiliations": [
    "Southeast University"
  ],
  "article_type": null,
  "arxiv": null,
  "author_total": 5,
  "authors": [
    {
      "affs": [
        0
      ],
      "name": "Yu-Hui Zhou",
      "orcid": "0000-0001-7751-8973"
    },
    {
      "affs": [
        0
      ],
      "name": "Xiu-Li Gao"
    },
    {
      "affs": [
        0
      ],
      "name": "Bin Wu",
      "orcid": "0009-0003-3854-6869"
    },
    {
      "affs": [
        0
      ],
      "name": "Jun-Xi Cui",
      "orcid": "0000-0002-2398-3754"
    },
    {
      "affs": [
        0
      ],
      "name": "Zhi-Yong Zhou",
      "orcid": "0000-0002-2051-248X"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/3wbay3ezqy9td.bib",
  "cited_by": 0,
  "doi": "10.1140/epjc/s10052-026-16483-5",
  "fulltext_url": "https://doi.org/10.1140/epjc/s10052-026-16483-5",
  "id": "3wbay3ezqy9td",
  "issns": [
    "1434-6044",
    "1434-6052"
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  "landing_url": "https://link.springer.com/article/10.1140/epjc/s10052-026-16483-5",
  "language": "en",
  "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": [
    [
      "lcc",
      "QB460-466"
    ],
    [
      "lcc",
      "QC770-798"
    ],
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      "openalex",
      "3106|Quantum Chromodynamics and Particle Interactions"
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  "pdf_url": "https://link.springer.com/content/pdf/10.1140/epjc/s10052-026-16483-5.pdf",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-22",
  "publisher": "Springer Science and Business Media LLC",
  "ris": "https://research.draconitic.com/paper/3wbay3ezqy9td.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:18:04Z",
      "native_id": "10.1140/epjc/s10052-026-16483-5",
      "source": "crossref",
      "url": "https://link.springer.com/article/10.1140/epjc/s10052-026-16483-5"
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    {
      "first_seen": "2026-10-30T13:46:29Z",
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      "url": "https://doi.org/10.1140/epjc/s10052-026-16483-5"
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  "subjects": [
    {
      "field": "physics",
      "origin": "openalex:3106|Quantum Chromodynamics and Particle Interactions",
      "subfield": "high-energy"
    }
  ],
  "title": "On compositeness of and its decay to",
  "title_text": "On compositeness of and its decay to",
  "type": "peer-reviewed",
  "updated_at": "2026-10-30T13:46:29Z",
  "url": "https://research.draconitic.com/paper/3wbay3ezqy9td",
  "venue": "The European Physical Journal C",
  "versions": [
    {
      "doi": "10.48550/arxiv.2606.14305",
      "pid": "4aqf7488avpr5",
      "relation": "preprint",
      "title": "On Compositeness of $D_{s0}^*(2317)$ and its decay to $D_sπ^0$",
      "venue": "arXiv"
    }
  ]
}