Just in case someone stumbles over this old question.
Prior to FeynCalc 9.3 there was no proper way to deal with things like
C x^T C^{-1}. Since FeynCalc 9.3 you can use FCCCT (FCChargeConjugateTransposed):
FCCCT[GA[a, b, c, d]] // Explicit
Cheers,
Vladyslav
> How can i reduce the Gamma matrix production like:
>
> " C (\gamma_a \gamma_b \gamma_c \gamma_d)^T C "
>
> to " -\gamma_d \gamma_c \gamma_b \gamma_a "?
>
> when i calculate
>
> " ChargeConjugationMatrix.Transpose[GA[a].GA[b].GA[c].GA[d]].ChargeConjugationMatrix "
>
> in FeynCalc, the charge conjugation matrix C and the transpose form of gamma matrix is still there.
>
> thank you!
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