Name: V. Shtabovenko Date: 03/28/19-04:22:26 AM Z


Hi Will,

I suspect that this might be related to the recent change in the syntax of
PropagatorDenominator in FeynArts

<https://github.com/FeynCalc/feynarts-mirror/commit/73094019d93c8a11cf8eee7189e5514a8e9154d6#diff-cc9305310a3b0771b5c2045c39d7cc73R491>

This should only concern propagators raised to some powers and my examples
from the test suite (including self-energies with gauge terms) seem to
work fine.

Could you please send me the output of CreateFeynAmp for one of the
diagrams that
generates this sort of ouput:

CreateFeynAmp[…]//InputForm

Cheers,
Vladyslav

Am 28.03.19 um 01:47 schrieb Will:
> Hi Vladyslav,
>
> I just updated FeynCalc (the development version) and noticed that there is something weird with the function FAPropagatorDenominator.
> When I generate the Feynman amplitude with FeynArts and then convert it to FeynCalc notation this function remains.
>
> If I do
> FAPropagatorDenominator[p[1] + p[4], 0, 3]//PropagatorDenominatorExplicit
> it does nothing.
>
> I was not getting this function in old versions.
> Please, let me know what I can do.
>
> Cheers,
> Will
>