FeynCalc manual (development version)

TGA

TGA[] can be used as input for $\gamma^0$ in $4$ dimensions and is transformed into DiracGamma[ExplicitLorentzIndex[0]] by FeynCalcInternal.

See also

Overview, GA, DiracGamma.

Examples

TGA[]

$$\bar{\gamma }^0$$

TGA[] // FCI // StandardForm

(*DiracGamma[ExplicitLorentzIndex[0]]*)

TGA[] . TGA[] // DiracSimplify

$$1$$