Two-loop three-gluon vertex in zero-momentum limit

Details Two-loop three-gluon vertex in zero-momentum limit Two-loop three-gluon vertex in zero-momentum limit

1998-01-21

arxiv.org/abs/hep-ph/9801380v1

Phys.Rev. D58 (1998) 036007

Physics

High Energy Physics

High Energy Physics - Phenomenology

22 pages, LaTeX, including 4 figures, uses epsf

Scientific paper

10.1103/PhysRevD.58.036007

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.

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