Description

GluonPropagator[p, {mu, a}, {nu, b}] or GluonPropagator[p, mu, a , nu, b ] yields the gluon propagator. GluonPropagator[p, {mu}, {nu}] or GluonPropagator[p, mu, nu] omits the SUNDelta. The gauge and the dimension is determined by the option Gauge and Dimension. The following settings of Gauge are possible: 1 for the Feynman gauge; for the general covariant gauge; {Momentum[n] ,1} for the axial gauge.

GP can be used as an abbreviation of GluonPropagator.

See also: GluonVertex, GhostPropagator, GluonGhostVertex.

This is a convenient way to enter amplitudes by hand (GP is an abbreviation GluonPropagator).

The FeynCalc Book

GluonGhostVertex

GluonVertex