FeynCalc manual (development version)

GHP

GHP[p, a, b] gives the ghost propagator where a and b are the color indices.

GHP[p] omits the δab\delta _{ab}.

See also

Overview, GhostPropagator, GluonPropagator, GluonGhostVertex.

Examples

GHP[p, a, b]

Πab(p)\Pi _{ab}(p)

GHP[p] // Explicit

ip2\frac{i}{p^2}

GHP[p, c1, c2]

Πc1  c2(p)\Pi _{\text{c1}\;\text{c2}}(p)

StandardForm[FCE[GHP[-k, c3, c4] // Explicit]]

(*I FAD[k] SD[c3, c4]*)