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arXiv · hep-ph/0008171

Quark-gluon vertex in arbitrary gauge and dimension

A. I. Davydychev·P. Osland·L. Saks
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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.

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A. I. Davydychev, P. Osland, L. Saks. 2000-08-16. Quark-gluon vertex in arbitrary gauge and dimension. https://doi.org/10.1103/physrevd.63.014022

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