Modelling the QCD phase transition with an effective Lagrangian of light and massive hadrons

被引：25

作者：

Agasyan, NO

Ebert, D

Ilgenfritz, EM

机构：

[1] Inst Theoret & Expt Phys, Moscow 117218, Russia

[2] Humboldt Univ, Inst Phys, D-10115 Berlin, Germany

来源：

NUCLEAR PHYSICS A | 1998年 / 637卷 / 01期

关键词：

QCD phase transition; quark/gluon condensate; nonlinear sigma model; chiral Lagrangian; scale anomaly; glueball field;

D O I：

10.1016/S0375-9474(98)00226-7

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：

The temperature dependence of quark and gluon condensates in QCD as precursor of the chiral and deconfining phase transition is modelled with a conformally extended nonlinear sigma-model including broken chiral and scale invariance. The model is further enlarged by including (free) heavier hadrons. Within this frame we then study the interplay of QCD scale breaking effects and heavier hadrons in chiral symmetry restoration. (C) 1998 Elsevier Science B.V.

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收藏

页码：135 / 155

页数：21

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