Equation of state in 2+1 flavor QCD at high temperatures

2017/10/31 by Alexei Bazavov, A. Bazavov, P. Petreczky +3 · 3 citations
Physics and Astronomy · #Coupling (piping) #Equation of state #High-Energy Particle Collisions Research #Lattice (music) #Materials science #Particle physics theoretical and experimental studies #Physics #Quantum Chromodynamics and Particle Interactions #Thermodynamics #hep-lat #hep-ph

paper · pdf · doi:10.1103/physrevd.97.014510

published as Phys. Rev. D 97, 014510 (2018) · RevTeX, 16 pages, 16 figures, published version

openalex created_date 2017/11/10 · openalex publication_date 2018/01/31 · arxiv created 2018/03/23 · arxiv updated 2018/03/26 · openalex updated_date 2026/08/05

Abstract

We calculate the equation of state at high temperatures in 2+1 flavor QCD using the highly improved staggered quark (HISQ) action. We study the lattice spacing dependence of the pressure at high temperatures using lattices with temporal extent N_\ensuremathτ=6, 8, 10 and 12 and perform continuum extrapolations. We also give a continuum estimate for the equation of state up to temperatures T=2 GeV, which are then compared with results of the weak-coupling calculations. We find a reasonably good agreement with the weak-coupling calculations at the highest temperatures.

Citations

• Lattice Monte Carlo data versus perturbation theory
• QCD equation of state with2+1flavors of improved staggered quarks
• QCD equation of state and hadron resonance gas
• The light-baryon spectrum in a relativistic quark model with instanton-induced quark forces
• The equation of state in lattice QCD: with physical quark masses towards the continuum limit
• QCD equation of state with almost physical quark masses
• Lattice QCD for Cosmology
• Three-loop HTLpt thermodynamics at finite temperature and chemical potential

Cited by

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• Heavy quarkonium in extreme conditions
• Direct real photons in relativistic heavy ion collisions