{
  "abstract": "Resolving local structure in photon distributions is an important goal in probing strong coherent electromagnetic fields. We propose using electron--positron pairs produced in situ in ultraperipheral heavy-ion collisions as dynamical probes to directly extract photon distributions. We define a theoretical reference cross section using the complete tree-level amplitude for two-photon-induced radiative lepton-pair production. When background effects factorize into a scalar Bose-enhancement factor, the ratio of the background-modified to reference differential cross sections, minus unity, yields the photon occupation number at a fixed momentum. Finite bins yield averages weighted by the reference cross section. We specify the conditions under which kinematic selections, acceptance, and radiative corrections preserve this local inversion.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2610.29400",
  "author_total": 1,
  "authors": [
    {
      "name": "Cong Li"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/c0c5kqhb24fs6.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2610.29400",
  "fulltext_url": null,
  "id": "c0c5kqhb24fs6",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2610.29400",
  "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|High-Energy Particle Collisions Research"
    ]
  ],
  "openalex": "W7223244491",
  "pdf_url": "https://arxiv.org/pdf/2610.29400",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-21",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/c0c5kqhb24fs6.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:34:19Z",
      "native_id": "2610.29400",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2610.29400"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:hep-ph",
      "subfield": "high-energy"
    }
  ],
  "title": "Direct Access to Nuclear Photon TMDs with In Situ Probes in Ultraperipheral Heavy-Ion Collisions",
  "title_text": "Direct Access to Nuclear Photon TMDs with In Situ Probes in Ultraperipheral Heavy-Ion Collisions",
  "type": "preprint",
  "updated_at": "2026-10-30T12:34:19Z",
  "url": "https://research.draconitic.com/paper/c0c5kqhb24fs6",
  "venue": "arXiv",
  "versions": []
}