PropagatorDenominator

Description

PropagatorDenominator[q, m] is a factor of the denominator of a propagator. If p is supposed to be D-dimensional enter: PropagatorDenominator[Momentum[q, D], m]. What is meant is  1/(q^2 - m^2). PropagatorDenominator[p] evaluates to PropagatorDenominator[p, 0].

See also:  FeynAmpDenominator, PropagatorDenominatorExplicit.

Examples

PropagatorDenominator[p, m]

PropagatorDenominator[p]

t1 = PropagatorDenominator[q, m]

StandardForm[FCI[t1]]

StandardForm[ChangeDimension[t1, D]]

PropagatorDenominatorExplicit[t1]

StandardForm[%]

Clear[t1]