{
  "abstract": "In the present work, we investigate the long-distance contributions to light hadrons and radiative decays of $η_c$, where the long-distance contribution is phenomenologically described by the meson loops. Our estimations indicate that the branching fractions of $η_c \\to \\mathcal{VV},\\ \\mathcal{V}=(ρ,ω, ϕ)$ can be roughly reproduced in the range $1.4<α<1.6$. While the parameter range for $η_c \\to γ\\mathcal{V}$ is determined by the similarity of $η_c \\to γ\\mathcal{V}/\\mathcal{VV}$ and $χ_{c1} \\to γ\\mathcal{V}/\\mathcal{VV}$. In this parameter range, our estimations indicate that the branching fractions for the processes $η_c \\to γρ^0$ and $η_c \\to γω$ are of order $10^{-4}$, while the one for the process $η_c \\to γϕ$ is of order $10^{-5}$. The estimations in the present work are expected to be accessible by future experiments at BESIII and Belle II.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2610.13837",
  "author_total": 3,
  "authors": [
    {
      "name": "Xiao-Yu Qi"
    },
    {
      "name": "Qi Wu"
    },
    {
      "name": "Dian-Yong Chen"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/b9ncvacsnpwrd.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2610.13837",
  "fulltext_url": null,
  "id": "b9ncvacsnpwrd",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2610.13837",
  "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/2610.13837",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-09",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/b9ncvacsnpwrd.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:28:36Z",
      "native_id": "2610.13837",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2610.13837"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:hep-ph",
      "subfield": "high-energy"
    }
  ],
  "title": "Long-Distance Contributions to Light Vector Mesons and Radiative Decays of $η_{c}$",
  "title_text": "Long-Distance Contributions to Light Vector Mesons and Radiative Decays of η_c",
  "type": "preprint",
  "updated_at": "2026-10-30T12:28:36Z",
  "url": "https://research.draconitic.com/paper/b9ncvacsnpwrd",
  "venue": "arXiv",
  "versions": []
}