FeynHelpers
https://github.com/FeynCalc/feynhelpers
is your friend.
$LoadAddOns = {"FeynHelpers"};
<< FeynCalc`
res = PaXEvaluate[B0[pp, 0, 0]]
res // StandardForm
2 + 1/Epsilon - EulerGamma + Log[-(ScaleMu^2/(\[Pi] pp))]
Cheers,
Vladyslav
> I have used OneLoop function, the result is expressed involving B0[pp,0,0].
> I know B0 is the scalar integral of Passarino-Veltman reduction, but I wonder can also B0 be reduced to some explicit form, just like terms of log, gamma(Eulers constant) such that?
>
> Are there some useful function to deal with two-loop amplitudes?
>
> pre-Thanks!
> Tyger
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