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

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(tau) = 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.
Authors:
 [1] ;  [2] ;  [3]
  1. Michigan State Univ., East Lansing, MI (United States)
  2. Brookhaven National Lab. (BNL), Upton, NY (United States)
  3. Technische Univ. Munchen (Germany)
Publication Date:
Report Number(s):
BNL-203416-2018-JAAM
Journal ID: ISSN 2470-0010; PRVDAQ
Grant/Contract Number:
SC0012704
Type:
Published Article
Journal Name:
Physical Review D
Additional Journal Information:
Journal Volume: 97; Journal Issue: 1; Journal ID: ISSN 2470-0010
Publisher:
American Physical Society (APS)
Research Org:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Org:
USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26)
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
OSTI Identifier:
1418878
Alternate Identifier(s):
OSTI ID: 1431285

Bazavov, A., Petreczky, P., and Weber, J. H.. Equation of state in 2+1 flavor QCD at high temperatures. United States: N. p., Web. doi:10.1103/PhysRevD.97.014510.
Bazavov, A., Petreczky, P., & Weber, J. H.. Equation of state in 2+1 flavor QCD at high temperatures. United States. doi:10.1103/PhysRevD.97.014510.
Bazavov, A., Petreczky, P., and Weber, J. H.. 2018. "Equation of state in 2+1 flavor QCD at high temperatures". United States. doi:10.1103/PhysRevD.97.014510.
@article{osti_1418878,
title = {Equation of state in 2+1 flavor QCD at high temperatures},
author = {Bazavov, A. and Petreczky, P. and Weber, J. H.},
abstractNote = {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(tau) = 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.},
doi = {10.1103/PhysRevD.97.014510},
journal = {Physical Review D},
number = 1,
volume = 97,
place = {United States},
year = {2018},
month = {1}
}