SP[a, b]
denotes a -dimensional scalar product. SP[a, b]
is transformed into ScalarProduct[a, b]
by FeynCalcInternal
.
SP[p]
is the same as SP[p, p]
.
Overview, Calc, ExpandScalarProduct, ScalarProduct.
[p, q] + SP[q] SP
[p - q, q + 2 p] SP
[ SP[p - q, q + 2 p] ] Calc
[SP[p - q]] ExpandScalarProduct
[a, b] // StandardForm
SP
(*SP[a, b]*)
[a, b] // FCI // StandardForm
SP
(*Pair[Momentum[a], Momentum[b]]*)
[a, b] // FCI // FCE // StandardForm
SP
(*SP[a, b]*)