GAUGE-FIXING DEPENDENCE OF GLUON AND QUARK-DAMPING RATES IN HOT QUANTUM CHROMODYNAMICS

Authors
BAIER R KUNSTATTER G SCHIFF D
Citation
R. Baier et al., GAUGE-FIXING DEPENDENCE OF GLUON AND QUARK-DAMPING RATES IN HOT QUANTUM CHROMODYNAMICS, Canadian journal of physics, 71(5-6), 1993, pp. 208-214
Citations number
50
Categorie Soggetti
Physics
Journal title
Canadian journal of physics → ACNP
ISSN journal
00084204
Volume
71
Issue
5-6
Year of publication
1993
Pages
208 - 214
Database
ISI
SICI code
0008-4204(1993)71:5-6<208:GDOGAQ>2.0.ZU;2-I
Abstract
The recently observed gauge-fixing dependence in covariant gauges of t he damping rates of the quantum chromodynamics (QCD) gluonic and fermi onic excitations at high temperatures and long wavelengths is reviewed . The analysis is based on the method by Braaten and Pisarski for resu mming hard thermal loops using the Ward identities satisfied by the ef fective propagators and vertex functions. A proposed resolution of the gauge problem by regularizing the mass singularities is also discusse d.