{
  "abstract": "We present a comparison of the UrQMD model using a chiral mean field EoS (CMF) with flow and pion production data in heavy ion collisions at low beam energies $E_{\\mathrm{lab}}=0.2-2.0 A$ GeV and varying iso-spin fraction. The CMF model parameters are constrained by known properties of the high density equation of state of QCD at varying iso-spin fractions. This allows us to calculate the equation of state as well as nuclear interactions for different physical systems like neutron stars and heavy ion collisions in a consistent way. It is found that heavy ion reactions at the upcoming FAIR facility will only have marginal sensitivity on the iso-spin dependence of the high-density equation of state. At lower beam energies, comparing to FOPI, HADES and S$π$rit data, the sensitivity is higher but the observed deviations and systematic uncertainties of the existing data are larger than the sensitivity to the symmetry energy.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": "Journal reference: Phys.Rev.C 114 (2026) 4, 044904",
  "arxiv": "2606.13415",
  "author_total": 2,
  "authors": [
    {
      "name": "Jan Steinheimer"
    },
    {
      "name": "Marcus Bleicher"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/c6fj3swh7x37c.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2606.13415",
  "fulltext_url": null,
  "id": "c6fj3swh7x37c",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2606.13415",
  "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/2606.13415",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-27",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/c6fj3swh7x37c.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:35:50Z",
      "native_id": "2606.13415",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2606.13415"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:nucl-th",
      "subfield": "nuclear"
    }
  ],
  "title": "Transport simulations with a constrained momentum-dependent chiral mean-field equation of state at various isospin fractions",
  "title_text": "Transport simulations with a constrained momentum-dependent chiral mean-field equation of state at various isospin fractions",
  "type": "preprint",
  "updated_at": "2026-10-30T12:35:50Z",
  "url": "https://research.draconitic.com/paper/c6fj3swh7x37c",
  "venue": "arXiv",
  "versions": []
}