FeynCalc manual (development version)

CVD

CVD[p, i] is a D-1-dimensional Cartesian vector and is transformed into CartesianPair[CartesianMomentum[p,D], CartesianIndex[i,D]] by FeynCalcInternal.

See also

Overview, FVD, Pair, CartesianPair.

Examples

CVD[p, i]

p^i

CVD[p - q, i]

(p-q)^i

FCI[CVD[p, i]] // StandardForm

(*CartesianPair[CartesianIndex[i, -1 + D], CartesianMomentum[p, -1 + D]]*)

ExpandScalarProduct is used to expand momenta in CVD

ExpandScalarProduct[CVD[p - q, i]]

p^i-q^i