%0 Journal Article %1 Baier1992Hightemperature %A Baier, R. %A Kunstatter, G. %A Schiff, D. %D 1992 %I American Physical Society %J Physical Review D %K gauge\_invariance %N 12 %P R4381--R4384 %R 10.1103/physrevd.45.r4381 %T High-temperature fermion propagator: Resummation and gauge dependence of the damping rate %U http://dx.doi.org/10.1103/physrevd.45.r4381 %V 45 %X The gauge-fixing dependence of the damping rate of the QED and QCD fermionic excitations at high temperatures and long wavelengths is reexamined in detail using the effective leading-order perturbation expansion developed by Braaten and Pisarski. In contrast with what is expected from recent formal discussions, explicit calculations in covariant gauges yield a fermionic damping rate that is gauge parameter dependent. This result has general implications for gauge theories at nonzero temperature.

@article{Baier1992Hightemperature, abstract = {The gauge-fixing dependence of the damping rate of the QED and QCD fermionic excitations at high temperatures and long wavelengths is reexamined in detail using the effective leading-order perturbation expansion developed by Braaten and Pisarski. In contrast with what is expected from recent formal discussions, explicit calculations in covariant gauges yield a fermionic damping rate that is gauge parameter dependent. This result has general implications for gauge theories at nonzero temperature.}, added-at = {2014-01-09T15:14:33.000+0100}, author = {Baier, R. and Kunstatter, G. and Schiff, D.}, biburl = {https://www.bibsonomy.org/bibtex/2c91cd77479e0c5718feb92630b625dc1/jaspervh}, citeulike-article-id = {7891918}, citeulike-linkout-0 = {http://dx.doi.org/10.1103/physrevd.45.r4381}, doi = {10.1103/physrevd.45.r4381}, interhash = {d274fc52066131020ebe46b199fc0175}, intrahash = {c91cd77479e0c5718feb92630b625dc1}, journal = {Physical Review D}, keywords = {gauge\_invariance}, month = jun, number = 12, pages = {R4381--R4384}, posted-at = {2010-09-23 21:50:23}, priority = {1}, publisher = {American Physical Society}, timestamp = {2014-01-09T15:14:33.000+0100}, title = {High-temperature fermion propagator: Resummation and gauge dependence of the damping rate}, url = {http://dx.doi.org/10.1103/physrevd.45.r4381}, volume = 45, year = 1992 }