{
  "abstract": "The world's largest sample of $J/ψ$ events accumulated with the BESIII detector offers a unique opportunity to investigate $η$ and $η'$ physics via the radiative transition processes $J/ψ\\to γη/η'$. A selection of recent highlights in light meson spectroscopy achieved at BESIII is reviewed in these proceedings, including evidence for the cusp effect in $η' \\to π^0π^0η$, precision studies of the decay mechanisms of $η\\to 3π$ and $η' \\to 4π$, electromagnetic transition form factor measurements with $η/η' \\to γe^+e^-$ and $η' \\to π^+π^-l^+l^-$, as well as searches for rare decays of $η$ and $η'$ into lepton pairs, including $η\\to l^+l^-$ and $η/η' \\to l^+l^-l^+l^-$~($l = e, μ$).",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2610.24472",
  "author_total": 1,
  "authors": [
    {
      "name": "Kailu Li"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/f1qnvhsym447g.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2610.24472",
  "fulltext_url": null,
  "id": "f1qnvhsym447g",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2610.24472",
  "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"
    ],
    [
      "openalex",
      "3106|Quantum Chromodynamics and Particle Interactions"
    ]
  ],
  "openalex": "W7223039943",
  "pdf_url": "https://arxiv.org/pdf/2610.24472",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-17",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/f1qnvhsym447g.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:30:52Z",
      "native_id": "2610.24472",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2610.24472"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:hep-ex",
      "subfield": "high-energy"
    }
  ],
  "title": "Light meson decays at BESIII",
  "title_text": "Light meson decays at BESIII",
  "type": "preprint",
  "updated_at": "2026-10-30T12:33:41Z",
  "url": "https://research.draconitic.com/paper/f1qnvhsym447g",
  "venue": "arXiv",
  "versions": []
}