Strong coupling series for QCD at finite temperature and density
Jens Langelage, Owe Philipsen
TL;DR
This paper develops strong coupling series expansions for QCD at finite temperature and density, deriving the hadron resonance gas model and analyzing the deconfinement transition's behavior under chemical potential.
Contribution
It introduces a first-principles derivation of the hadron resonance gas model and explores the effects of chemical potential on the deconfinement transition in QCD.
Findings
Temperature effects on free energy and screening masses are characterized.
The hadron resonance gas model is derived from fundamental principles.
Deconfinement transition weakens with increasing chemical potential.
Abstract
We discuss the use of strong coupling expansions for Yang-Mills theory and QCD at finite temperature and density. In particular we consider the onset of temperature effects for the free energy and screening masses, derive the hadron resonance gas model from first principles and compute the weakening of the deconfinement transition with chemical potential.
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