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Three-loop hard-thermal-loop perturbation theory thermodynamics at finite temperature and finite baryonic and isospin chemical potential

2015/11/30 by Jens O. Andersen, Najmul Haque, Munshi G. Mustafa +1 · 1 citation
Earth and Planetary Sciences · Physics and Astronomy · #Baryon #Chiral perturbation theory #High-Energy Particle Collisions Research #High-pressure geophysics and materials #Isospin #Lattice QCD #Mathematical physics #Particle physics #Physics #Quantum Chromodynamics and Particle Interactions #Quantum chromodynamics #Quantum electrodynamics #Quantum mechanics #Quark #Quark–gluon plasma #Thermal quantum field theory #Thermodynamics #hep-lat #hep-ph

paper · pdf · doi:10.1103/physrevd.93.054045

published as Phys. Rev. D 93, 054045 (2016) · 19 pages, 9 figs. Updated version matches published version in PRD including changes of title

openalex publication_date 2016/03/29 · arxiv created 2016/03/31 · arxiv updated 2016/04/06 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

Abstract

In a previous paper [N. Haque et al., J. High Energy Phys. 05 (2014) 27], we calculated the three-loop thermodynamic potential of QCD at finite temperature T and quark chemical potentials \ensuremathμq using the hard-thermal-loop perturbation theory (HTLpt) reorganization of finite temperature and density QCD. The result allows us to study the thermodynamics of QCD at finite temperature and finite baryon, strangeness, and isospin chemical potentials \ensuremathμB, \ensuremathμS, and \ensuremathμI. We calculate the pressure at nonzero \ensuremathμB and \ensuremathμI with \ensuremathμS=0, and the energy density, the entropy density, the trace anomaly, and the speed of sound at nonzero \ensuremathμI with \ensuremathμB=\ensuremathμS=0. The second- and fourth-order isospin susceptibilities are calculated at \ensuremathμB=\ensuremathμS=\ensuremathμI=0. Our results can be directly compared to lattice QCD without Taylor expansions around \ensuremathμq=0 since QCD has no sign problem at \ensuremathμB=\ensuremathμS=0 and finite isospin chemical potential \ensuremathμI.

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