{
  "abstract": "The BESIII Collaboration recently extracted the properties of the $X(2370)$ from a fit to the one-dimensional $K_S^0K_S^0π^0$ invariant-mass spectrum in $J/ψ\\toγK_S^0K_S^0π^0$. The intermediate two-body structures visible in the mass correlations, including the $K_0^*(1430)$ bands, require a coherent treatment of cross-channel interference when interpreting the enhancement near 2.3 GeV. We reassess the need for an additional $X(2370)$ contribution by fitting the published data using an effective coupled-channel framework with an approximate detection efficiency depending on the three-body invariant mass. The three-body parent amplitude is parameterized using a $K$-matrix that describes scattering among several quasi-two-body channels. The seven- and eight-bare-state models give similar mass distributions. Adding the eighth bare state lowers the Poisson deviance by 1.22% and produces an additional pole at $E=(2419-i152)$ MeV, substantially broader than the $X(2370)$ mass-width reference. This pole is model-dependent, and its identification with the $X(2370)$ is not clear. The present analysis does not establish the need for an additional $X(2370)$ contribution in $J/ψ\\toγK_S^0K_S^0π^0$, thereby weakening the flavor-singlet argument based on the suppression of $K^*\\bar K$ relative to the total $K\\bar Kπ$ contribution. A more comprehensive experimental amplitude analysis, incorporating coherent interference, mass and angular correlations, and detector effects across related decay channels, is needed to establish the role and decay properties of the $X(2370)$.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2610.11937",
  "author_total": 4,
  "authors": [
    {
      "name": "Xiang-Kun Dong"
    },
    {
      "name": "Teng Ji"
    },
    {
      "name": "Meike Küßner"
    },
    {
      "name": "Ulf-G. Meißner"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/1k8kbg7yn44rh.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2610.11937",
  "fulltext_url": null,
  "id": "1k8kbg7yn44rh",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2610.11937",
  "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-lat"
    ],
    [
      "arxiv",
      "hep-ph"
    ],
    [
      "openalex",
      "3106|Quantum Chromodynamics and Particle Interactions"
    ]
  ],
  "openalex": "W7221119171",
  "pdf_url": "https://arxiv.org/pdf/2610.11937",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-16",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/1k8kbg7yn44rh.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:30:32Z",
      "native_id": "2610.11937",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2610.11937"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:hep-ex",
      "subfield": "high-energy"
    }
  ],
  "title": "Reassessing the $X(2370)$ in $J/ψ\\toγK_S^0K_S^0π^0$ beyond the one-dimensional mass projections",
  "title_text": "Reassessing the X(2370) in J/ψ→γK_S^0K_S^0π^0 beyond the one-dimensional mass projections",
  "type": "preprint",
  "updated_at": "2026-10-30T12:33:28Z",
  "url": "https://research.draconitic.com/paper/1k8kbg7yn44rh",
  "venue": "arXiv",
  "versions": []
}