Quark-gluon vertex in arbitrary gauge and dimension
High Energy Physics - Phenomenology
2009-10-31 v1
Abstract
One-loop off-shell contributions to the quark-gluon vertex are calculated, in an arbitrary covariant gauge and in arbitrary space-time dimension, including quark-mass effects. It is shown how one can get results for all on-shell limits of interest directly from the off-shell expressions. In order to demonstrate that the Ward-Slavnov-Taylor identity for the quark-gluon vertex is satisfied, we have also calculated the corresponding one-loop contribution involving the quark-quark-ghost-ghost vertex.
Keywords
Cite
@article{arxiv.hep-ph/0008171,
title = {Quark-gluon vertex in arbitrary gauge and dimension},
author = {A. I. Davydychev and P. Osland and L. Saks},
journal= {arXiv preprint arXiv:hep-ph/0008171},
year = {2009}
}
Comments
50 pages, LaTeX, including 7 figures, uses epsfig