{
  "abstract": "Motivated by new BESIII measurements of the singly Cabibbo-suppressed process $Λ_c^+ \\to p K^+ K^- $, we investigate the $Λ_c^+ \\to p K^+ K^-$ reaction by taking into account contributions from the low-lying excited baryons $Λ(1405)$ and $Λ(1670)$, which are dynamically generated via the $S$-wave pseudoscalar meson-octet baryon interaction. In addition, contributions from the light scalar mesons $f_0(980)/a_0(980)$ dynamically generated via the $S$-wave pseudoscalar meson-pseudoscalar meson interaction, as well as the vector meson $ϕ(1020)$, are also considered. The theoretical calculations could reproduce the invariant mass distributions of $K^- p$ and $K^+K^-$ measured by the BESIII Collaboration well. Specifically, a near-threshold enhancement and a cusp structure around 1670~MeV in the $pK^-$ invariant mass spectrum are obtained, which are associated with the $Λ(1405)$ and $Λ(1670)$ resonances, respectively. Furthermore, contributions from the scalar meson $f_0(980)$ and vector meson $ϕ(1020)$ are clearly observed in the $K^+ K^-$ invariant mass distribution. Future high-precision measurements by the BESIII, Belle II, and the proposed Super Tau-Charm Facility experiments will substantially deepen our understanding of the intrinsic properties of the low-lying excited $Λ$ states and the $f_0(980)/a_0(980)$ meson.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2610.24939",
  "author_total": 6,
  "authors": [
    {
      "name": "Sheng-Chao Zhang"
    },
    {
      "name": "Gui-Ye Guo"
    },
    {
      "name": "Guan-Ying Wang"
    },
    {
      "name": "Li-Sheng Geng"
    },
    {
      "name": "En Wang"
    },
    {
      "name": "Ju-Jun Xie"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/6j0xpfxs0hr8s.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2610.24939",
  "fulltext_url": null,
  "id": "6j0xpfxs0hr8s",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2610.24939",
  "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",
      "3106|Quantum Chromodynamics and Particle Interactions"
    ]
  ],
  "openalex": "W7223009934",
  "pdf_url": "https://arxiv.org/pdf/2610.24939",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-18",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/6j0xpfxs0hr8s.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:30:52Z",
      "native_id": "2610.24939",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2610.24939"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:hep-ph",
      "subfield": "high-energy"
    }
  ],
  "title": "Dynamical resonances $Λ(1405)$, $Λ(1670)$, and $f_0(980)$ in the process $Λ_c^+ \\to p K^+ K^-$",
  "title_text": "Dynamical resonances Λ(1405), Λ(1670), and f_0(980) in the process Λ_c^+ → p K^+ K^-",
  "type": "preprint",
  "updated_at": "2026-10-30T12:33:41Z",
  "url": "https://research.draconitic.com/paper/6j0xpfxs0hr8s",
  "venue": "arXiv",
  "versions": []
}