{
  "abstract": "Strong magnetic fields generated in non-central heavy-ion collisions break rotational symmetry and can imprint anisotropy on the produced quantum chromodynamics (QCD) matter. Within a hadron resonance gas framework in the presence of an external magnetic field, we investigate the resulting anisotropy in the equation of state, isothermal compressibility, speed of sound, and conserved-charge fluctuations. We find that the electric-charge susceptibility ratio $χ_4^Q/χ_2^Q$ develops a pronounced directional dependence, driven primarily by the Landau-level structure of charged pions. For physically relevant magnetic fields, this anisotropy reaches $\\sim 10 - 15 \\%$ at $T\\simeq0.16$ GeV. The ratio of electric-charge susceptibility can be expressed as $χ_4^Q/χ_2^Q=C_4^Q/C_2^Q=κ_Qσ_Q^2$, where $C_2^Q$ and $C_4^Q$ are the second- and fourth-order cumulants, and $κ_Q$ and $σ_Q$ are the kurtosis and variance of the event-by-event net-electric-charge distribution. The reaction-plane dependence of this ratio provides an experimentally accessible signature of magnetic-field-induced anisotropy. Our results identify higher-order electric-charge fluctuations as a promising probe of the imprint of strong electromagnetic fields on the matter produced in heavy-ion collisions at RHIC and the LHC.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2610.23120",
  "author_total": 2,
  "authors": [
    {
      "name": "Dushmanta Sahu"
    },
    {
      "name": "Jayanta Dey"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/184nq0w2fad6j.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2610.23120",
  "fulltext_url": null,
  "id": "184nq0w2fad6j",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2610.23120",
  "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": "W7222970780",
  "pdf_url": "https://arxiv.org/pdf/2610.23120",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-16",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/184nq0w2fad6j.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:30:32Z",
      "native_id": "2610.23120",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2610.23120"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:hep-ph",
      "subfield": "high-energy"
    },
    {
      "field": "physics",
      "origin": "arxiv:nucl-th",
      "subfield": "nuclear"
    }
  ],
  "title": "Anisotropic hadronic matter in external magnetic fields",
  "title_text": "Anisotropic hadronic matter in external magnetic fields",
  "type": "preprint",
  "updated_at": "2026-10-30T12:33:28Z",
  "url": "https://research.draconitic.com/paper/184nq0w2fad6j",
  "venue": "arXiv",
  "versions": []
}