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I have no idea what exactly yo did, but FeynCalc does not evaluate
Passarino-Veltman
functions numerically, for that you need to use a different
package/program (like LoopTools or Collier).

Cheers,
Vladyslav

Am 14.08.2018 um 04:26 schrieb Marco Merchand:
> I am want to calculate the Peskin-Takeuchi parameters S and T in my research. I was tryin to write the expression with the build in functions B0 and B00 but it doesn't give me back a numerical answer. It give me back a recursion limit error.
>
> My emeil is mamerchandmedi@email.wm.edu
>
> Thanks
>

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