FEYN CALC SYMBOL

GluonPropagator


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; alpha for the general covariant gauge; {Momentum[n] ,1} for the axial gauge. GP can be used as an abbreviation of GluonPropagator.

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Basic Examples  (1)Basic Examples  (1)

Examples

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