FeynCalc manual (development version)

GhostPropagator

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

GhostPropagator[p] omits the δab\delta _{ab}.

GHP can be used as an abbreviation of GhostPropagator.

See also

Overview, GluonPropagator, QCDFeynmanRuleConvention, GluonGhostVertex.

Examples

GhostPropagator[p, a, b] 
 
Explicit[%]

Πab(p)\Pi _{ab}(p)

iδabp2\frac{i \delta ^{ab}}{p^2}

GHP[p] 
 
Explicit[%]

Πu(p)\Pi _u(p)

ip2\frac{i}{p^2}