{
  "abstract": "The longstanding Belle--BESIII discrepancies in the $e^+e^-\\toΛ_c^+\\barΛ_c^-$, $D_sD_{s1}(2536)$, and $D_sD_{s2}^{*}(2573)$ line shapes remain an unresolved puzzle, with enhancements observed by Belle that are absent or much weaker in the BESIII measurements. In this work, we propose a new mechanism based on the radiative production of higher charmonia to explain these differences. Such processes may contribute to Belle's initial-state radiation samples, and the luminosity normalization increases their contribution to the extracted cross sections. With the vector contributions scaled by BESIII data, a pseudoscalar charmonium $η_c(6S)$ contribution can describe the baryonic enhancement, while an introduced $χ_{c2}(5P)$ contribution can describe the enhancements in both meson channels. This mechanism offers a possible common explanation for these differences and, as a bonus, suggests a way to search for missing higher charmonia at Belle II.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2610.24634",
  "author_total": 4,
  "authors": [
    {
      "name": "Cheng-Xi Liu"
    },
    {
      "name": "Tian-Le Gao"
    },
    {
      "name": "Cheng-Ping Shen"
    },
    {
      "name": "Xiang Liu"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/bhs576vcpe74j.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2610.24634",
  "fulltext_url": null,
  "id": "bhs576vcpe74j",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2610.24634",
  "language": null,
  "licence": "CC0-1.0",
  "licence_label": "CC0",
  "licence_source": "article",
  "licence_url": "http://creativecommons.org/publicdomain/zero/1.0/",
  "metadata_licence": "CC0-1.0",
  "native_subjects": [
    [
      "arxiv",
      "hep-ex"
    ],
    [
      "arxiv",
      "hep-ph"
    ],
    [
      "openalex",
      "3106|Quantum Chromodynamics and Particle Interactions"
    ]
  ],
  "openalex": "W7223008550",
  "pdf_url": "https://arxiv.org/pdf/2610.24634",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-17",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/bhs576vcpe74j.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:30:52Z",
      "native_id": "2610.24634",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2610.24634"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:hep-ex",
      "subfield": "high-energy"
    }
  ],
  "title": "Common origin of the Belle-BESIII line-shape difference of $Λ_c^+\\barΛ_c^-$, $D_s D_{s1}$ and $D_s D_{s2}^*$ from $e^+ e^-$ annihilation",
  "title_text": "Common origin of the Belle-BESIII line-shape difference of Λ_c^+Λ̅_c^-, D_s D_s1 and D_s D_s2^* from e^+ e^- annihilation",
  "type": "preprint",
  "updated_at": "2026-11-05T15:20:56Z",
  "url": "https://research.draconitic.com/paper/bhs576vcpe74j",
  "venue": "arXiv",
  "versions": []
}