FeynCalc manual (development version)

FCLoopMixedIntegralQ

FCLoopMixedIntegralQ[exp] returns True if the integral contains both Lorentz and Cartesian indices and momenta.

See also

Overview

Examples

FCI[FVD[p, mu] CFAD[q, q - p]] 
 
FCLoopMixedIntegralQ[%]

\frac{p^{\text{mu}}}{(q^2-i \eta ).((q-p)^2-i \eta )}

\text{True}

FCI[FVD[p, mu] FAD[q, q - p]] 
 
FCLoopMixedIntegralQ[%]

\frac{p^{\text{mu}}}{q^2.(q-p)^2}

\text{False}