FeynCalc manual (development version)

ExplicitLorentzIndex

ExplicitLorentzIndex[ind] is an explicit Lorentz index, i.e., ind is an integer.

See also

Overview, LorentzIndex, Pair.

Examples

Pair[LorentzIndex[1], LorentzIndex[\[Mu]]]

\bar{g}^{1\mu }

Pair[LorentzIndex[1], LorentzIndex[\[Mu]]] // StandardForm

(*Pair[ExplicitLorentzIndex[1], LorentzIndex[\[Mu]]]*)