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Three-gluon vertex in arbitrary gauge and dimension

A. I. Davydychev, P. Osland, O. V. Tarasov

hep-pharXiv:hep-ph/9605348

Abstract

One-loop off-shell contributions to the three-gluon vertex are calculated, in arbitrary covariant gauge and in arbitrary space-time dimension, including quark-loop contributions (with massless quarks). It is shown how one can get the results for all on-shell limits of interest directly from the general off-shell expression. The corresponding general expressions for the one-loop ghost-gluon vertex are also obtained. They allow for a check of consistency with the Ward--Slavnov--Taylor identity.

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