MASSIVE GLUONS AND QUARKS AND THE EQUATION OF STATE OBTAINED FROM SU(3) LATTICE QCD

Authors
LEVAI P HEINZ U
Citation
P. Levai et U. Heinz, MASSIVE GLUONS AND QUARKS AND THE EQUATION OF STATE OBTAINED FROM SU(3) LATTICE QCD, Physical review. C. Nuclear physics, 57(4), 1998, pp. 1879-1890
Citations number
58
Categorie Soggetti
Physics, Nuclear
Journal title
Physical review. C. Nuclear physics → ACNP
ISSN journal
05562813
Volume
57
Issue
4
Year of publication
1998
Pages
1879 - 1890
Database
ISI
SICI code
0556-2813(1998)57:4<1879:MGAQAT>2.0.ZU;2-R
Abstract
We analyze recent results of SU(3) lattice QCD calculations with a phe nomenological parametrization for the quark-gluon plasma equation of s tate based on a quasiparticle picture with massive quarks and gluons. At high temperature we obtain a good fit to the lattice data using per turbative thermal quark and gluon masses from an improved HTL scheme. At temperatures dose to the confinement phase transition the fitted ma sses increase above the perturbative value, and a nonzero (but small) bag constant is required to fit the lattice data.