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Hagedorn bag-like model with a crossover transition meets lattice QCD

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arxiv 1811.05737 v2 pith:V3GZ5AQ6 submitted 2018-11-14 hep-ph hep-latnucl-th

classification hep-phhep-latnucl-th
keywords crossoverlatticemodeltransitionbag-likehagedornbehaviorcharges
verification ladder T0 review T1 audit T2 compute T3 formal

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abstract

Thermodynamic functions, the (higher-order) fluctuations and correlations of conserved charges at $\mu_B = 0$, and the Fourier coefficients of net-baryon density at imaginary $\mu_B$, are considered in the framework of a Hagedorn bag-like model with a crossover transition. The qualitative behavior of these observables is found to be compatible with lattice QCD results. Fair quantitative description of the lattice data is obtained when quasiparticle-type quarks and gluons with non-zero masses are introduced into the bag spectrum. The equation of state of the model exhibits a smooth and wide crossover transition.

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Cited by 2 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Hadronic and partonic composition of QCD matter across the crossover

    nucl-th 2026-07 conditional novelty 5.0 of 10

    A three-parameter hadron–quark crossover equation of state fitted to lattice QCD data yields a switching temperature T₀ ≃ 216 MeV, implying hadronic degrees of freedom persist well above the chiral pseudocritical temperature.

  2. Backward nucleon production by heavy baryonic resonances in proton-nucleus collisions

    nucl-th 2019-08 conditional novelty 5.0 of 10

    Backward nucleons in p+A collisions can be produced by heavy baryonic resonances that undergo successive rescatterings with nuclear nucleons, a mechanism the authors support with analytic kinematics and UrQMD simulations.

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