{
  "abstract": "We establish interaction cross sections as a quantitative structural observable for hypernuclei. Using the hypertriton, ${}^{3}_Λ\\mathrm H$, as the most stringent benchmark, microscopic three-body wave functions are combined with a finite-range coupled-channel Glauber calculation and Bayesian inversion. For ${}^{3}_Λ\\mathrm{H}+{}^{12}\\mathrm{C}$ at 1.5 GeV/nucleon, the interaction cross section decreases from about 1150 to 750 mb as the $Λ$ separation energy $B_Λ$ increases from 0.1 to 0.5 MeV, while propagated reaction-model uncertainties remain near 5\\%. A measurement therefore supplies a direct inversion $σ_I\\to r_m\\to B_Λ$, constraining both the matter radius and the $Λ$ separation energy. The framework provides the missing quantitative link between proposed interaction-cross-section measurements and the spatial structure of an already formed hypernucleus. Although demonstrated for the hypertriton, the methodology is readily extendable to other weakly bound hypernuclei.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2606.02923",
  "author_total": 1,
  "authors": [
    {
      "name": "Carlos A. Bertulani"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/213a59xdk5d11.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2606.02923",
  "fulltext_url": null,
  "id": "213a59xdk5d11",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2606.02923",
  "language": null,
  "licence": "LicenseRef-arXiv-nonexclusive-1.0",
  "licence_label": "arXiv licence",
  "licence_source": "article",
  "licence_url": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
  "metadata_licence": "CC0-1.0",
  "native_subjects": [
    [
      "arxiv",
      "nucl-th"
    ]
  ],
  "openalex": null,
  "pdf_url": "https://arxiv.org/pdf/2606.02923",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-15",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/213a59xdk5d11.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:30:32Z",
      "native_id": "2606.02923",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2606.02923"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:nucl-th",
      "subfield": "nuclear"
    }
  ],
  "title": "Precision Hypernuclear Structure from Interaction Cross Sections",
  "title_text": "Precision Hypernuclear Structure from Interaction Cross Sections",
  "type": "preprint",
  "updated_at": "2026-10-30T12:33:28Z",
  "url": "https://research.draconitic.com/paper/213a59xdk5d11",
  "venue": "arXiv",
  "versions": []
}