Background field method and nonlinear gauges
High Energy Physics - Theory
2019-09-11 v2
Abstract
We present a reformulation of the background field method for Yang-Mills type theories, based on using a superalgebra of generators of BRST and background field transformations. The new approach enables one to implement and consistently use non-linear gauges in a natural way, by using the requirement of invariance of the fermion gauge-fixing functional under the background field transformations.
Cite
@article{arxiv.1906.04767,
title = {Background field method and nonlinear gauges},
author = {Breno L. Giacchini and Peter M. Lavrov and Ilya L. Shapiro},
journal= {arXiv preprint arXiv:1906.04767},
year = {2019}
}
Comments
19 pages. Extended discussion, references added; matches the published version