Three-gluon vertex in arbitrary gauge and dimension.

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. [email protected]. Permanent address: Institute for Nuclear Physics, Moscow State University, 119899, Moscow, Russia [email protected] [email protected]. On leave from Joint Institute for Nuclear Research, 141980, Dubna, Russia. Present address: IfH, DESY-Zeuthen, Platanenallee 6, D-15738 Zeuthen, Germany.