Hard-thermal-loop resummed pressure of a degenerate quark-gluon plasma

Abstract

We compute the pressure of a finite density quark-gluon plasma at zero temperature to leading order in hard-thermal-loop perturbation theory, which includes the fermionic excitations and Landau damping. The result is compared with the weak-coupling expansion for finite positive chemical potential $\mu$ through order ${\alpha }_s^2$ and with a quasiparticle model with a mass depending on $\mu$.

arXiv comment6 pages, 2 figures

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• Equation of State of hot and dense QCD: Resummed perturbation theory confronts lattice data
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• Strange quark matter: mapping QCD lattice results to finite baryon density by a quasi-particle model