{
  "abstract": "We study the three-quark ladder Bethe--Salpeter equation in Minkowski-space QCD$_2$ in the light-cone gauge. Using the quasi-potential expansion, we project the baryon equation onto the light front and show that, at leading order in the valence truncation, the resulting mass-squared eigenvalue equation is equivalent to the Bars--Durgut equation. We also derive the endpoint power-law behavior of the valence wave function in terms of the quark mass and coupling, closely paralleling the original 't Hooft analysis for mesons. The resulting three-quark equation is solved numerically for $N_c=3$, and the ground-state baryon mass is found to be in reasonable agreement with previous light-cone quantization results in QCD$_2$, suggesting that the valence sector provides the dominant contribution to the ground state. The excited-state spectrum further yields a Regge trajectory that captures the overall trend of the experimental nucleon spectrum, and we compute selected structure observables, including parton distribution functions, double distribution amplitudes, and coordinate-space densities. This framework provides a useful confining test bed for Minkowski-space bound-state methods and for future developments toward confining formulations in 3+1 dimensions beyond the valence truncation.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": "Journal reference: Phys. Lett. B 883, 141087 (2026)",
  "arxiv": "2605.07095",
  "author_total": 7,
  "authors": [
    {
      "name": "Satvir Kaur"
    },
    {
      "name": "Sreeraj Nair"
    },
    {
      "name": "Chandan Mondal"
    },
    {
      "name": "Jiangshan Lan"
    },
    {
      "name": "Xingbo Zhao"
    },
    {
      "name": "J. P. B. C. de Melo"
    },
    {
      "name": "Tobias Frederico"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/5dscvvmthcamh.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2605.07095",
  "fulltext_url": null,
  "id": "5dscvvmthcamh",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2605.07095",
  "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/2605.07095",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-30",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/5dscvvmthcamh.ris",
  "sources": [
    {
      "first_seen": "2026-11-02T12:21:14Z",
      "native_id": "2605.07095",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2605.07095"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:hep-ph",
      "subfield": "high-energy"
    }
  ],
  "title": "Baryon Bethe-Salpeter Equation in Minkowski-Space QCD$_2$",
  "title_text": "Baryon Bethe-Salpeter Equation in Minkowski-Space QCD_2",
  "type": "preprint",
  "updated_at": "2026-11-04T15:20:49Z",
  "url": "https://research.draconitic.com/paper/5dscvvmthcamh",
  "venue": "arXiv",
  "versions": [
    {
      "doi": "10.1016/j.physletb.2026.141087",
      "pid": "92y25cfkndq9p",
      "relation": "published-as",
      "title": "Baryon Bethe–Salpeter equation in Minkowski-space QCD2",
      "venue": "Physics Letters B"
    }
  ]
}