Resolution of the gauge dependence problem of the fermion damping rate in hot gauge theories
Feb, 19927 pages
Published in:
- Phys.Lett.B 294 (1992) 396-402
- Published: 1992
Report number:
- CPTH-A092-0A156-092
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Abstract: (Elsevier)
The gauge-dependence problem of the damping rate of a fermionic mode in hot gauge theories is carefully examined to the effective one-loop order using recently proposed resummation methods in terms of “hard thermal loops”. We study the case of a heavy fermion ( M ⪢ T ), which enables us to investigate the essential point of controversy in great detail. Explicit calculation in general covariant gauges shows which calculation procedure should be employed to get a gauge-parameter independent result.- gauge field theory
- fermion: heavy
- plasma
- dependence: gauge
- fermion: propagator
- temperature: high
- regularization
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