FEYN CALC SYMBOL

PropagatorDenominator


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].

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Basic Examples  (1)Basic Examples  (1)

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