{
  "abstract": "We investigate net-baryon number fluctuations in the high-density, low-temperature region of the QCD phase diagram using the parity-doublet model (PDM) under the mean-field approximation. We compute the fluctuation ratios up to sixth order around the nuclear liquid-gas (LG) phase transition, where the high-order ratios are particularly sensitive. To connect the results with heavy-ion experiments, we test several different scenarios of chemical freeze-out. We find that near the LG transition the extracted fluctuations depend strongly on the choice of freeze-out curve. We self-consistently determine four freeze-out points from preliminary results of the STAR Collaboration. Comparing the experimental data with the PDM results along these four points, we find that the model describes the low energy ($\\sqrt{s_{NN}}\\lesssim$ 4 GeV) data well. This suggests that nucleon interactions and the LG phase transition may contribute significantly to the fluctuations in low energy heavy-ion collisions.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2609.17328",
  "author_total": 2,
  "authors": [
    {
      "name": "Mattia Recchi"
    },
    {
      "name": "Shi Yin"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/2d4k0xkw9n5cj.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2609.17328",
  "fulltext_url": null,
  "id": "2d4k0xkw9n5cj",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2609.17328",
  "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"
    ],
    [
      "arxiv",
      "nucl-th"
    ],
    [
      "openalex",
      "3106|High-Energy Particle Collisions Research"
    ]
  ],
  "openalex": "W7213434728",
  "pdf_url": "https://arxiv.org/pdf/2609.17328",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-24",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/2d4k0xkw9n5cj.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:24:11Z",
      "native_id": "2609.17328",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2609.17328"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:hep-ph",
      "subfield": "high-energy"
    },
    {
      "field": "physics",
      "origin": "arxiv:nucl-th",
      "subfield": "nuclear"
    }
  ],
  "title": "Imprints of the nuclear liquid-gas phase transition on net-baryon number fluctuations",
  "title_text": "Imprints of the nuclear liquid-gas phase transition on net-baryon number fluctuations",
  "type": "preprint",
  "updated_at": "2026-10-30T12:24:11Z",
  "url": "https://research.draconitic.com/paper/2d4k0xkw9n5cj",
  "venue": "arXiv",
  "versions": []
}