{
  "abstract": "We present the first application of the unbiased exponential resummation method to the determination of the QCD pseudocritical temperature $T_{\\rm pc}$ at vanishing baryon chemical potential $μ_B$. By reconstructing the finite-density baryon number susceptibility $χ_2^B$, we define two thermal-derivative observables whose peak positions yield $T_{\\rm pc}^T=160.2(4)(3)$ MeV and $T_{\\rm pc}^C=158.1(5)(3)$ MeV. We also show that the pseudocritical temperature, $T_{\\rm pc}^χ$ obtained from the peak of the fourth-order baryon number susceptibility $χ_4^B$ is consistent with these determinations and with previous lattice-QCD results based on Taylor expansions \\cite{Bollweg:2022Pade}. Further, we demonstrate that scaling relations \\cite{Bollweg:2022fqq} between $χ_4^B$ and the thermal derivatives of $χ_2^B$ yield mutually consistent estimates of the leading second order curvature coefficient $κ_2^B$ at the corresponding pseudocritical temperatures. A direct analysis of the $μ_B$ dependence of the pseudocritical temperatures provides an independent but substantially less constrained determination of the curvature, which remains statistically consistent with the scaling-based estimates. These results demonstrate the consistency of unbiased exponential resummation with the expected scaling behavior and establish it as a complementary approach for probing the QCD crossover at small finite baryon density.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": "Journal reference: Phys Rev D 114, 074518 (2026)",
  "arxiv": "2608.19330",
  "author_total": 1,
  "authors": [
    {
      "name": "Sabarnya Mitra"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/08tx9p52yfb35.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2608.19330",
  "fulltext_url": null,
  "id": "08tx9p52yfb35",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2608.19330",
  "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-lat"
    ],
    [
      "arxiv",
      "hep-ph"
    ],
    [
      "arxiv",
      "hep-th"
    ],
    [
      "arxiv",
      "nucl-ex"
    ],
    [
      "arxiv",
      "nucl-th"
    ]
  ],
  "openalex": null,
  "pdf_url": "https://arxiv.org/pdf/2608.19330",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-31",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/08tx9p52yfb35.ris",
  "sources": [
    {
      "first_seen": "2026-11-03T12:20:58Z",
      "native_id": "2608.19330",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2608.19330"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:hep-lat",
      "subfield": "high-energy"
    },
    {
      "field": "physics",
      "origin": "arxiv:nucl-ex",
      "subfield": "nuclear"
    }
  ],
  "title": "QCD crossover temperature and curvature coefficient from unbiased exponential resummation at physical quark masses in (2+1)-flavor lattice QCD",
  "title_text": "QCD crossover temperature and curvature coefficient from unbiased exponential resummation at physical quark masses in (2+1)-flavor lattice QCD",
  "type": "preprint",
  "updated_at": "2026-11-04T15:20:56Z",
  "url": "https://research.draconitic.com/paper/08tx9p52yfb35",
  "venue": "arXiv",
  "versions": [
    {
      "doi": "10.1103/xvsp-mh91",
      "pid": null,
      "relation": "published-as",
      "title": null,
      "venue": null
    }
  ]
}