FeynCalc manual (development version)

PropagatorDenominator

PropagatorDenominator[Momentum[q], m] is a factor of the denominator of a propagator. If q is supposed to be $D$-dimensional, use PropagatorDenominator[Momentum[q, D], m]. What is meant is $1/(q^2-m^2)$.

PropagatorDenominator must appear inside FeynAmpDenominator, it is not a standalone object.

See also

Overview, FeynAmpDenominator, FeynAmpDenominatorExplicit.

Examples

FeynAmpDenominator[PropagatorDenominator[Momentum[p], m]]

$$\frac{1}{\overline{p}^2-m^2}$$

FeynAmpDenominator[PropagatorDenominator[Momentum[p, D], m]]

$$\frac{1}{p^2-m^2}$$