ON THE GLUON PLASMON SELF-ENERGY AT O(G)

被引:18
作者
FLECHSIG, F
SCHULZ, H
机构
[1] Institut für Theoretische Physik, Universität Hannover, D-30167 Hannover
关键词
D O I
10.1016/0370-2693(95)00249-K
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
The next-to-leading order contribution delta IImu nu (omega, q) to the polarization function of the hot gluon system is analysed at nonzero wave vectors q. Using Braaten-Pisarski resummation and general covariant gauges, delta IImu nu is found to be gauge-fixing independent and transverse on the longitudinal mass-shell. The real part of the longitudinal component delta IIl is UV and IR stable (for real q). At imaginary q it is IR singular, and at the point omega = 0, q(2) = -3m(2) it coincides with the result of Rebhan for next-to-leading order Debye screening. When q approaches the lightcone, delta IIl diverges like 1/root omega(2)-q(2) reflecting the breakdown of the Braaten-Pisarski decomposition scheme in this limit.
引用
收藏
页码:504 / 512
页数:9
相关论文
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