NONPERTURBATIVE APPROACH TO CHIRAL PHASE-TRANSITION IN CHROMODYNAMICS

被引：7
|
作者：
KALASHNIKOV, OK [1 ]
机构：
[1] UNIV HELSINKI,THEORET PHYS RES INST,SF-00170 HELSINKI 17,FINLAND
来源：
ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS | 1988年 / 39卷 / 03期
关键词：
D O I：
10.1007/BF01548294
中图分类号：
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号：
摘要：
A nonperturbative approach aimed at the localization of the QCD chiral phase transition at T, π≠0 is presented. We identify this transition with the dynamical quark mass peculiarity which results from the selfconsistent solution of the Schwinger-Dyson equation for the quark propagator. The specific model of the effective quark-gluon interaction, based both on the peculier interpolation for the running coupling constant and on the nonperturbative gluon magnetic and electric masses is exploited. The numerical estimates of the phase diagram are presented and it is shown that phase peculiarities are determined not only by the ultraviolet properties of QCD but also by its infrared structure. The obtained results are discussed, compared with other approaches and a possible interpretation is given. © 1988 Springer-Verlag.
引用
收藏
页码：427 / 431
页数：5
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