On the Gauge-Independence of the S-Matrix
High Energy Physics - Theory
2016-09-06 v2
Abstract
The S-matrix is invariant with respect to the variation of any (global) parameter involved in the gauge fixing conditions, if that variation is accompanied by a certain redefinition of the basis of polarization vectors. Renormalizability of the underlying gauge theory is not required. The proof is nonperturbative and, using the `extended' BRS transformation, quite simple.
Cite
@article{arxiv.hep-th/0104123,
title = {On the Gauge-Independence of the S-Matrix},
author = {W. Kummer},
journal= {arXiv preprint arXiv:hep-th/0104123},
year = {2016}
}
Comments
11 pages, AMSmath, v2: References added in Introduction and Conclusion