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Main Author: Pal, Somenath
Format: Preprint
Published: 2026
Subjects:
Online Access:https://arxiv.org/abs/2602.19821
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author Pal, Somenath
author_facet Pal, Somenath
contents We reformulate the treatment of density-dependent chemical potential shifts appearing in excluded-volume implementations of the hadron resonance gas model. An auxiliary classical representation is constructed in which a common energy shift is determined by preserving the scalar number density, ensuring thermodynamic consistency. Hadron radii are parametrized through a liquid-drop inspired mass-radius relation with two parameters: the pion radius and a scaling exponent. The resulting framework reproduces lattice QCD results for lower-order conserved-charge susceptibilities at zero chemical potentials with only two adjustable parameters.
format Preprint
id arxiv_https___arxiv_org_abs_2602_19821
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Thermodynamically consistent treatment of repulsive corrections in HRG
Pal, Somenath
High Energy Physics - Phenomenology
Nuclear Theory
We reformulate the treatment of density-dependent chemical potential shifts appearing in excluded-volume implementations of the hadron resonance gas model. An auxiliary classical representation is constructed in which a common energy shift is determined by preserving the scalar number density, ensuring thermodynamic consistency. Hadron radii are parametrized through a liquid-drop inspired mass-radius relation with two parameters: the pion radius and a scaling exponent. The resulting framework reproduces lattice QCD results for lower-order conserved-charge susceptibilities at zero chemical potentials with only two adjustable parameters.
title Thermodynamically consistent treatment of repulsive corrections in HRG
topic High Energy Physics - Phenomenology
Nuclear Theory
url https://arxiv.org/abs/2602.19821