{
  "abstract": "We study hadron-hadron interactions in (2+1)-flavor lattice QCD near the physical pion mass ($m_π\\simeq 146\\mathrm{MeV}$) using the HAL QCD method, with particular emphasis on two-pion exchange (TPE). The nucleon--flavor-singlet hadron potentials such as $ϕ$-$N$, $J/ψ$-$N$, and $η_c$-$N$ are found to be attractive at all distances. Moreover, in the long-range region where one-pion exchange is forbidden, we observe lattice signatures consistent with TPE dominance. These results demonstrate that the HAL QCD method can extract universal long-distance phenomena, such as TPE, directly from nonperturbative QCD dynamics.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": "Journal reference: Journal of Subatomic Particles and Cosmology, 5 (2026) 100341",
  "arxiv": "2610.34655",
  "author_total": 1,
  "authors": [
    {
      "name": "Tetsuo Hatsuda"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/bkyqn1rytnbbs.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2610.34655",
  "fulltext_url": null,
  "id": "bkyqn1rytnbbs",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2610.34655",
  "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-lat"
    ],
    [
      "arxiv",
      "hep-ph"
    ],
    [
      "arxiv",
      "nucl-th"
    ]
  ],
  "openalex": null,
  "pdf_url": "https://arxiv.org/pdf/2610.34655",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-26",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/bkyqn1rytnbbs.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:35:35Z",
      "native_id": "2610.34655",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2610.34655"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:hep-lat",
      "subfield": "high-energy"
    },
    {
      "field": "physics",
      "origin": "arxiv:nucl-th",
      "subfield": "nuclear"
    }
  ],
  "title": "Two-Pion Exchange Paradigm in Hadron-Hadron Interactions from Lattice QCD",
  "title_text": "Two-Pion Exchange Paradigm in Hadron-Hadron Interactions from Lattice QCD",
  "type": "preprint",
  "updated_at": "2026-10-30T12:35:35Z",
  "url": "https://research.draconitic.com/paper/bkyqn1rytnbbs",
  "venue": "arXiv",
  "versions": [
    {
      "doi": "10.1016/j.jspc.2026.100341",
      "pid": null,
      "relation": "published-as",
      "title": null,
      "venue": null
    }
  ]
}