Gauge parameter dependence in gauge theories (revised: subsection 2.3)
High Energy Physics - Theory
2009-10-28 v2
Abstract
Dependence on the gauge parameters is an important issue in gauge theories: physical quantities have to be independent. Extending BRS transformations by variation of the gauge parameter into a Grassmann variable one can control gauge parameter dependence algebraically. As application we discuss the anomaly coefficient in the Slavnov-Taylor identity, -matrix elements, the vector two-point-function and the coefficients of renormalization group and Callan-Symanzik equation.
Cite
@article{arxiv.hep-th/9406115,
title = {Gauge parameter dependence in gauge theories (revised: subsection 2.3)},
author = {E. Kraus and K. Sibold},
journal= {arXiv preprint arXiv:hep-th/9406115},
year = {2009}
}
Comments
6, MPI-PhT/94-34, BUTP-94/15