Quark-gluon vertex in arbitrary gauge and dimension

Details Quark-gluon vertex in arbitrary gauge and dimension Quark-gluon vertex in arbitrary gauge and dimension

2000-08-16

arxiv.org/abs/hep-ph/0008171v1

Phys.Rev. D63 (2001) 014022

Physics

High Energy Physics

High Energy Physics - Phenomenology

50 pages, LaTeX, including 7 figures, uses epsfig

Scientific paper

10.1103/PhysRevD.63.014022

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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