Name: Vladyslav Shtabovenko (email_not_shown)
Date: 07/22/15-02:38:58 PM Z


Hi,

thanks, there was indeed an expansion of Dirac slashes missing.
It should be now fixed

https://github.com/FeynCalc/feyncalc/commit/6b86d8f977d61a9a96dfc3a7a5a7e8f6bd80179c

Cheers,
Vladyslav

Am 22.07.2015 um 12:30 schrieb Manuel J.Vicente:
> Hi,
>
> There seems to be some regression in the last FC version (downloaded 21st July).
> TID fails now in some expressions that used to work.
>
> amp = DiracGamma[Momentum[z, D], D] FeynAmpDenominator[
> PropagatorDenominator[Momentum[z, D], M],
> PropagatorDenominator[Momentum[k, D] + Momentum[z, D], M],
> PropagatorDenominator[-Momentum[k, D] + Momentum[pp, D] -
> Momentum[z, D], MD],
> PropagatorDenominator[Momentum[p, D] - Momentum[z, D], m]] Pair[
> Momentum[k, D], Momentum[z, D]]
> rtid0 = TID[amp, z];
>
> Now, it gives an error message and aborts the calculation.
> "TID::failmsg: Error! TID has encountered a fatal problem and must abort the computation. The problem reads: Ucontracting loop momenta in ... failed."
>
>
> Best regards
> Manuel J. Vicente
>
>



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