Massive gluons and quarks and the equation of state obtained from SU(3) lattice QCD

被引：283

作者：

Levai, P

Heinz, U

机构：

[1] KFKI, Res Inst Particle & Nucl Phys, H-1525 Budapest, Hungary

[2] Univ Regensburg, Inst Theoret Phys, D-93040 Regensburg, Germany

来源：

PHYSICAL REVIEW C | 1998年 / 57卷 / 04期

关键词：

D O I：

10.1103/PhysRevC.57.1879

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

We analyze recent results of SU(3) lattice QCD calculations with a phenomenological parametrization for the quark-gluon plasma equation of state based on a quasiparticle picture with massive quarks and gluons. At high temperature we obtain a good fit to the lattice data using perturbative thermal quark and gluon masses from an improved HTL scheme. At temperatures dose to the confinement phase transition the fitted masses increase above the perturbative value, and a nonzero (but small) bag constant is required to fit the lattice data.

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页码：1879 / 1890

页数：12

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