Effective restoration of chiral and axial symmetries at finite temperature and density

被引：3
|
作者：
Ruivo, MC [1 ]
Costa, P
de Sousa, CA
Kalinovsky, YL
机构：
[1] Univ Coimbra, Dept Fis, P-3004516 Coimbra, Portugal
[2] Univ Liege, Dept Phys B5, B-4000 Liege, Belgium
[3] Joint Nucl Res Inst, Informat Technol Lab, Dubna, Russia
来源：
JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS | 2005年 / 31卷 / 06期
关键词：
D O I：
10.1088/0954-3899/31/6/083
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 effective restoration of chiral and axial symmetries is investigated within the framework of the SU(3) Nambu-Jona-Lasinio model. The topological susceptibility, modelled from lattice data at finite temperature, is used to extract the temperature dependence of the coupling strength of the anomaly. The study of the scalar and pseudoscalar mixing angles is performed in order to discuss the evolution of the flavour combinations of qq pairs and its consequences for the degeneracy of chiral partners. A similar study at zero temperature and finite density is also realized.
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页码：S1183 / S1186
页数：4
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