{
  "abstract": "We present a momentum-space framework for the consistent treatment of Coulomb interactions in femtoscopic correlation functions based on a modified Vincent--Phatak method that is more amenable to numerical implementation. The formalism provides a practical approach to incorporating Coulomb effects at the short distances relevant for femtoscopy within the Lippmann--Schwinger equation, while preserving a unified treatment of the strong interaction. As an application, we study the $S=-4$ pseudoscalar--baryon decuplet interaction in the $\\bar{K}Ω$ system and present predictions for the singly and doubly negatively charged channels, $\\bar{K}^0Ω^-$ and $K^-Ω^-$. As an additional validation of the formalism, we have also applied it to the well-studied $pp$ system. We further assess the limitations of the asymptotic wave-function approximation and quantify corrections accounting for the short-distance structure of the interaction potential. We introduce a phenomenological parameter that effectively absorbs contributions from both the finite source size and the off-shell structure of the interaction, the latter being one of the main obstacles to extracting detailed information on hadron--hadron interactions from femtoscopic measurements in a model-independent way.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2607.11321",
  "author_total": 6,
  "authors": [
    {
      "name": "Pablo Encarnación"
    },
    {
      "name": "Amador García-Lorenzo"
    },
    {
      "name": "Miguel Albaladejo"
    },
    {
      "name": "Albert Feijoo"
    },
    {
      "name": "Juan Nieves"
    },
    {
      "name": "Isaac Vidaña"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/89x8zd98h804r.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2607.11321",
  "fulltext_url": null,
  "id": "89x8zd98h804r",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2607.11321",
  "language": null,
  "licence": "CC-BY-NC-ND-4.0",
  "licence_label": "CC BY-NC-ND 4.0",
  "licence_source": "article",
  "licence_url": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
  "metadata_licence": "CC0-1.0",
  "native_subjects": [
    [
      "arxiv",
      "hep-ph"
    ],
    [
      "arxiv",
      "nucl-th"
    ],
    [
      "openalex",
      "3106|High-Energy Particle Collisions Research"
    ]
  ],
  "openalex": "W7168237303",
  "pdf_url": "https://arxiv.org/pdf/2607.11321",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-21",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/89x8zd98h804r.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:34:18Z",
      "native_id": "2607.11321",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2607.11321"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:hep-ph",
      "subfield": "high-energy"
    },
    {
      "field": "physics",
      "origin": "arxiv:nucl-th",
      "subfield": "nuclear"
    }
  ],
  "title": "Coulomb Effects in Momentum-Space Femtoscopy: A Case Study of the $\\bar{K}Ω$ System",
  "title_text": "Coulomb Effects in Momentum-Space Femtoscopy: A Case Study of the K̅Ω System",
  "type": "preprint",
  "updated_at": "2026-10-30T12:34:18Z",
  "url": "https://research.draconitic.com/paper/89x8zd98h804r",
  "venue": "arXiv",
  "versions": []
}