Thermodynamics at non-zero baryon number density: a comparison of lattice and hadron resonance gas model calculations

2003/06/26 by F. Karsch, K. Redlich, Abdel Nasser Tawfik +1 · 9 citations
Physics and Astronomy · #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-lat #hep-ph #nucl-th

paper · pdf · doi:10.1016/j.physletb.2003.08.001

published as Phys.Lett. B571 (2003) 67-74 · 15 pages, LaTex2e, 6 EPS-figures, minor corrections, reference added

arxiv created 2003/06/26 · openalex publication_date 2003/09/12 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/01

Abstract

We compare recent lattice studies of QCD thermodynamics at non-zero quark chemical potential with the thermodynamics of a hadron resonance gas. We argue that for T⩽Tc the equation of state derived from Monte Carlo simulations of two flavour QCD at non-zero chemical potential can be well described by a hadron resonance gas when using the same set of approximations as used in current lattice calculations. We estimate the importance of truncation errors arising from the use of a Taylor expansion in terms of the quark chemical potential and examine the influence of unphysically large quark masses on the equation of state and the critical conditions for deconfinement.

Cited by

• Thermodynamics of the PNJL model
• QCD equation of state and hadron resonance gas
• News from lattice QCD on heavy quark potentials and spectral functions of heavy quark states
• The QCD equation of state near Tc within a quasi-particle model
• Quark-mass dependence ofTcin QCD: Working up fromm=0or down fromm=∞?
• Constant-trace anomaly as a universal condition for the chemical freeze-out
• Quark–antiquark condensates in the hadronic phase
• QCD critical region and quark gluon plasma from an imaginary μB
• Glueballs and statistical mechanics of the gluon plasma