Two-loop three-gluon vertex in zero-momentum limit
High Energy Physics - Phenomenology
2016-08-25 v1 High Energy Physics - Theory
Abstract
The two-loop three-gluon vertex is calculated in an arbitrary covariant gauge, in the limit when one of the external momenta vanishes. The differential Ward-Slavnov-Taylor (WST) identity related to this limit is discussed, and the relevant results for the ghost-gluon vertex and two-point functions are obtained. Together with the differential WST identity, they provide another independent way for calculating the three-gluon vertex. The renormalization of the results obtained is also presented.
Cite
@article{arxiv.hep-ph/9801380,
title = {Two-loop three-gluon vertex in zero-momentum limit},
author = {A. I. Davydychev and P. Osland and O. V. Tarasov},
journal= {arXiv preprint arXiv:hep-ph/9801380},
year = {2016}
}
Comments
22 pages, LaTeX, including 4 figures, uses epsf