Some non-renormalization theorems in Curci-Ferrari model
Abstract
In the present letter, a particular form of Slavnov-Taylor identities for the Curci-Ferrari model is deduced. This model consist of Yang-Mills theory in a particular non-linear covariant gauge, supplemented with mass terms for gluons and ghosts. It can be used as a regularization for the Yang-Mills theory preserving simple Slavnov-Taylor identities. Employing these identities two non-renormalization theorems are proved that reduce the number of independent renormalization factors from five to three. These new relations are verified by comparing to the already known three-loops renormalization factors. These relations include, as a particular case, the corresponding known identities in Yang-Mills theory in Landau gauge.
Keywords
Cite
@article{arxiv.hep-th/0701127,
title = {Some non-renormalization theorems in Curci-Ferrari model},
author = {Nicolas Wschebor},
journal= {arXiv preprint arXiv:hep-th/0701127},
year = {2010}
}
Comments
14 pages, some references added, some improvement in explanations and some misprints corrected