Role of quark mass in cold and dense perturbative QCD

2004/12/31 by Eduardo S. Fraga, Paul Romatschke · 3 citations
Physics and Astronomy · #High-Energy Particle Collisions Research #Particle physics #Particle physics theoretical and experimental studies #Perturbative QCD #Physics #Quantum Chromodynamics and Particle Interactions #Quantum chromodynamics #astro-ph #hep-ph #nucl-th

paper · pdf · doi:10.1103/physrevd.71.105014

published as Phys.Rev. D71 (2005) 105014 · 5 pages REVTEX4, 4 figures; minor changes, matches published version

openalex publication_date 2005/05/19 · arxiv created 2005/05/27 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/06

Abstract

We consider the equation of state of QCD at high density and zero temperature in perturbation theory to first order in the coupling constant \ensuremathα_s. We compute the thermodynamic potential including the effect of a nonvanishing mass for the strange quark and show that corrections are sizable. Renormalization group running of the coupling and the strange quark mass plays a crucial role. The structure of quark stars is dramatically modified.

Citations

• Hard-thermal-loop quasiparticle models of deconfined QCD at finite chemical potential
• From QCD lattice calculations to the equation of state of quark matter
• Cosmic separation of phases
• Equation of state for dense QCD and quark stars
• Big Bang Nucleosynthesis (in "The Review of Particle Properties" 2004)
• Collapsed Nuclei

Cited by

• Systematic study on the quark-hadron mixed phase in compact stars
• Equation of state of zero-temperature quark matter
• Mass and chemical asymmetry in QCD matter