Name: V. Shtabovenko Date: 03/01/19-04:48:45 AM Z
The problem is that you have
PropagatorDenominator[…]*PropagatorDenominator[…]
while it should be
FeynAmpDenominator[PropagatorDenominator[…]]*FeynAmpDenominator[PropagatorDenominator[…]]
This is very weird, since FCFAConvert should normally handle that.
What
versions of FeynCalc and FeynArts are you using?
Am 01.03.19 um 00:40 schrieb john:
> sure,here is the output of amps//FCE//InputForm:
>
> (g^2*MTD[Lor1,
Lor2]*PropagatorDenominator[Momentum[q, D], 0]*
> (MTD[Lor1, Lor2] - FVD[q, Lor1]*FVD[q,
Lor2]*(1 - GaugeXi[V[Index[Generic,
3]]])*PropagatorDenominator[Momentum[q, D],
0]))/
> (2^D*Pi^(D/2)) + (2^(1 -
D)*g^2*PropagatorDenominator[Momentum[q, D],
ms*Sqrt[GaugeXi[S[Index[Generic,
3]]]]])/Pi^(D/2) -
> (g^2*PropagatorDenominator[Momentum[q, D],
ms*Sqrt[GaugeXi[S[Index[Generic,
3]]]]])/(2^D*Pi^(D/2)) +
> (((-I)*gc7*FVD[p, Lor1] - I*gc7*FVD[q,
Lor1])*((-I)*gc7*FVD[p, Lor2] - I*gc7*FVD[q,
Lor2])*PropagatorDenominator[Momentum[p - q, D],
0]*
> (MTD[Lor1, Lor2] - FVD[p - q, Lor1]*FVD[p - q,
Lor2]*(1 - GaugeXi[V[Index[Generic,
4]]])*PropagatorDenominator[Momentum[p - q, D],
0])*
> PropagatorDenominator[Momentum[q, D],
ms*Sqrt[GaugeXi[S[Index[Generic,
3]]]]])/(2^D*Pi^(D/2)) -
> ((gc11*GA[6] + gc11*GA[7])*(gc9*GA[6] +
gc9*GA[7])*(mf - GSD[q])*GSD[-p +
q]*PropagatorDenominator[Momentum[q, D], mf]*
> PropagatorDenominator[Momentum[-p + q, D],
0])/(2^D*Pi^(D/2))
>
> Thanks in advance.
>