Equation of state at non-zero baryon density based on lattice QCD

被引：6

作者：

Huovinen, Pasi ^{[1
]}

Petreczky, Peter ^{[2
]}

Schmidt, Christian ^{[3
]}

机构：

[1] Goethe Univ Frankfurt, Inst Theoret Phys, D-60438 Frankfurt, Germany

[2] Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA

[3] Univ Bielefeld, Fak Phys, D-33615 Bielefeld, Germany

来源：

CENTRAL EUROPEAN JOURNAL OF PHYSICS | 2012年 / 10卷 / 06期

关键词：

lattice QCD; equation of state; hadron resonance gas; hydrodynamic models;

D O I：

10.2478/s11534-012-0110-3

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We employ the lattice QCD data on Taylor expansion coefficients to extend our previous parametrization of the equation of state to finite baryon density. When we take into account lattice spacing and quark mass dependence of the hadron masses, the Taylor coefficients at low temperature are equal to those of hadron resonance gas. Parametrized lattice equation of state can thus be smoothly connected to the hadron resonance gas equation of state at low temperatures.

引用

页码：1385 / 1387

页数：3

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