Quark-hadron matter at finite temperature and density in a two-color PNJL model

被引：19

作者：

Imai, Shotaro ^{[1
]}

Toki, Hiroshi ^{[1
]}

Weise, Wolfram ^{[2
,3
]}

机构：

[1] Osaka Univ, RCNP, Osaka 5670047, Japan

[2] Tech Univ Munich, Dept Phys, D-85747 Garching, Germany

[3] ECT, I-38123 Villazzano, Trento, Italy

来源：

NUCLEAR PHYSICS A | 2013年 / 913卷

关键词：

Color SU(2); NJL model; Chiral condensation; Diquark condensation; Polyakov loop; Equation of state of quark-hadron matter; QCD; THERMODYNAMICS; SUPERCONDUCTIVITY; SYMMETRY;

D O I：

10.1016/j.nuclphysa.2013.06.001

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：

Quark-hadron matter at finite temperature and density is studied using a two-flavor, color SU(2) (P)NJL model. The hadronic effective Lagrangian, derived by bosonization of the quark fields and renormalized using the Eguchi method, emerges in the form of an extended linear sigma model with meson and diquark-baryon fields. Chiral and diquark condensates are studied as functions of temperature and baryon density. Masses of mesons and diquark-baryons are calculated with and without the Polyakov loop effect. We investigate the equation of state of quark-hadron matter by taking into account the contributions of mesons and diquark-baryons in addition to the quark quasiparticles. (c) 2013 Elsevier B.V. All rights reserved.

引用

页码：71 / 102

页数：32

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