{
  "abstract": "The density dependence of four-quark condensates is a major source of uncertainty in operator product expansion analyses of hadrons in nuclear matter. Their determination is particularly relevant to the $N$--$J/ψ$ interaction, whose long-range attraction appears to be well described by two-pion exchange in lattice QCD. We evaluate the pion-coupled four-quark condensates using one-nucleon intermediate-state insertions and incorporate them into the QCD sum rule analysis for the $J/ψ$ meson in nuclear matter. At normal nuclear matter density, we find a mass shift of $-1.75$ MeV, which is of the same order as the approximately $-5$ MeV attraction inferred from a two-pion exchange potential fitted to lattice QCD results. A previous factorization-based treatment required the introduction of unnaturally large phenomenological parameters to obtain a comparable shift. Our result shows that one-nucleon intermediate states provide a significant contribution to the in-medium four-quark condensates and improve the connection between the operator product expansion and the long-range $N$--$J/ψ$ interaction.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2610.08260",
  "author_total": 3,
  "authors": [
    {
      "name": "Seokwoo Yeo"
    },
    {
      "name": "Philipp Gubler"
    },
    {
      "name": "Su Houng Lee"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/5s97a3dx3fncr.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2610.08260",
  "fulltext_url": null,
  "id": "5s97a3dx3fncr",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2610.08260",
  "language": null,
  "licence": "CC-BY-NC-SA-4.0",
  "licence_label": "CC BY-NC-SA 4.0",
  "licence_source": "article",
  "licence_url": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
  "metadata_licence": "CC0-1.0",
  "native_subjects": [
    [
      "arxiv",
      "hep-th"
    ],
    [
      "arxiv",
      "nucl-th"
    ],
    [
      "openalex",
      "3106|Quantum Chromodynamics and Particle Interactions"
    ]
  ],
  "openalex": "W7221004739",
  "pdf_url": "https://arxiv.org/pdf/2610.08260",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-06",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/5s97a3dx3fncr.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:27:22Z",
      "native_id": "2610.08260",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2610.08260"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:hep-th",
      "subfield": "high-energy"
    },
    {
      "field": "physics",
      "origin": "arxiv:nucl-th",
      "subfield": "nuclear"
    }
  ],
  "title": "One-nucleon intermediate-state contribution to the pion-coupled four-quark condensate in the $N$--$J/ψ$ interaction",
  "title_text": "One-nucleon intermediate-state contribution to the pion-coupled four-quark condensate in the N--J/ψ interaction",
  "type": "preprint",
  "updated_at": "2026-10-30T12:27:22Z",
  "url": "https://research.draconitic.com/paper/5s97a3dx3fncr",
  "venue": "arXiv",
  "versions": []
}