GA

Description

GA[μ] can be used as input for a 4-dimensional (Subscript[γ, μ]) and is transformed into DiracGamma[LorentzIndex[μ]] by FeynCalcInternal (=FCI).GA[μ, ν,  ...] is a short form for GA[μ].GA[ν]. ... .

See also:  DiracMatrix, GAD, GS.

Examples

GA[μ]

GA[μ, ν] - GA[ν, μ]

StandardForm[FCI[GA[μ]]]

GA[μ, ν, ρ, σ]

StandardForm[GA[μ, ν, ρ, σ]]

GA[α] . (GS[p] + m) . GA[β]