Pion production from a critical QCD phase

被引：52

作者：

Antoniou, NG ^{[1
]}

Contoyiannis, YF ^{[1
]}

Diakonos, FK ^{[1
]}

Karanikas, AI ^{[1
]}

Ktorides, CN ^{[1
]}

机构：

[1] Univ Athens, Dept Phys, GR-15771 Athens, Greece

来源：

NUCLEAR PHYSICS A | 2001年 / 693卷 / 3-4期

关键词：

QCD phase diagrams; critical point; sigma condensates; intermittency;

D O I：

10.1016/S0375-9474(01)00921-6

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：

A theoretical scheme which relates multiparticle states generated in ultrarelativistic nuclear collisions to a QCD phase transition is considered in the framework of the universality class provided by the 3D Ising model. Two different evolution scenarios for the QGP system are examined. The statistical mechanics of the critical state is accounted for in terms of (critical) cluster formation consistent with suitably cast effective action functionals, one for each considered type of expansion. Fractal properties associated with these clusters, characterizing the density fluctuations near the QCD critical point, are determined. Monte-Carlo simulations are employed to generate 'events', pertaining to the total system, which correspond to signals associated with unconventional sources of pion production. (C) 2001 Elsevier Science B.V. All rights reserved.

引用

页码：799 / 824

页数：26

共 40 条

[31] Instantons and the chiral phase transition at nonzero baryon density [J].