LEADING T3-BEHAVIOR AND VERTEX-CONFIGURATION DEPENDENCE OF REAL-TIME THERMAL QCD COUPLING

被引:18
|
作者
NAKKAGAWA, H [1 ]
NIEGAWA, A [1 ]
YOKOTA, H [1 ]
机构
[1] OSAKA CITY UNIV,DEPT PHYS,SUMIYOSHI KU,OSAKA 558,JAPAN
关键词
D O I
10.1016/0370-2693(90)90270-G
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
The properties of effective coupling in real-time thermal QCD are investigated at one-loop order in the large-T regime, focusing on its strong dependence on the momentum configuration of a vertex. A striking observation is that the leading large-T behavior in a general vertex-configuration is cubic in T, a-1 ∼ T3, which is solely controlled by those contributions that have been overlooked so far. The relation with the coupling defined in the imaginary time formalism is also discussed. © 1990.
引用
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页码:63 / 67
页数:5
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