{
  "abstract": "Hyperon single-particle potentials U_Y(rho) govern hyperon propagation in nuclei and the appearance of hyperons in dense matter, where they soften the neutron-star equation of state (EOS) and lower the maximum mass M_max, the hyperon puzzle. Charged-current (anti)neutrino interactions on argon-40 create Lambda and Sigma hyperons inside the nucleus. The reconstructed Lambda yield and momentum and a kaon-vetoed final-state-interaction (FSI) Sigma+ tag respond to U_Lambda and U_Sigma at SBND and DUNE energies. We write the potential at low density as U_Y = U_Y(rho_0) (rho/rho_0)^gamma, plus a correction that vanishes at saturation. A detector-level Fisher forecast, with production cross sections, fluxes and efficiencies as nuisance parameters and the muon kinematics calibrating the production model, determines U_Lambda best at rho* = 0.82 rho_0, independently of gamma. The statistical precision is 1.5 MeV; with the production model profiled and the remaining systematic uncertainties added in quadrature, the total is +-31 MeV, of which the largest item, 18 MeV, is the convention by which the cascade applies the potential. The measurement is a check, with different systematics, of the hypernuclear constraint, +-3.3 MeV at rho*. U_Sigma is not constrained. In relativistic mean-field EOSs anchored to hypernuclear and Sigma-atom depths, M_max for n p Lambda Sigma- matter is 1.94 M_sun for GM1 and 2.03 M_sun for FSU2H with the phi meson; it depends on a high-density Lambda NN term c_Lambda that the neutrino data do not constrain. The calculations use the StrangeMC Monte Carlo generator.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2607.09273",
  "author_total": 1,
  "authors": [
    {
      "name": "Jaroslaw A. Nowak"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/461w3kz9jdfzn.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2607.09273",
  "fulltext_url": null,
  "id": "461w3kz9jdfzn",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2607.09273",
  "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",
      "astro-ph.HE"
    ],
    [
      "arxiv",
      "hep-ex"
    ],
    [
      "arxiv",
      "hep-ph"
    ],
    [
      "arxiv",
      "nucl-th"
    ],
    [
      "openalex",
      "3106|Nuclear physics research studies"
    ]
  ],
  "openalex": "W7168190567",
  "pdf_url": "https://arxiv.org/pdf/2607.09273",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-27",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/461w3kz9jdfzn.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:35:50Z",
      "native_id": "2607.09273",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2607.09273"
    }
  ],
  "subjects": [
    {
      "field": "astronomy",
      "origin": "arxiv:astro-ph.HE",
      "subfield": "high-energy-astrophysics"
    },
    {
      "field": "physics",
      "origin": "arxiv:hep-ex",
      "subfield": "high-energy"
    },
    {
      "field": "physics",
      "origin": "arxiv:nucl-th",
      "subfield": "nuclear"
    }
  ],
  "title": "Neutrino-induced hyperon final-state interactions as a probe of the in-medium hyperon potential",
  "title_text": "Neutrino-induced hyperon final-state interactions as a probe of the in-medium hyperon potential",
  "type": "preprint",
  "updated_at": "2026-10-30T12:35:50Z",
  "url": "https://research.draconitic.com/paper/461w3kz9jdfzn",
  "venue": "arXiv",
  "versions": []
}