Dear Paulina,
if it is a big expression, then please isolate
the minimal relevant piece that generates the error.
This should be easy enough e.g. as in
longExpression = Sum[a[i], {i, 1, 1000}];
longExpression[[1 ;; 500]] // fun;
longExpression[[1 ;; 250]] // fun;
longExpression[[20 ;; 250]] // fun;
until you get the smallest number of terms between
the lower and the upper bounds.
Once you are done with that, please provide me with
the output of
yourExp // FCE // InputForm
so that I can properly paste it into a Mathematica notebook.
I mean, if I can't reproduce the issue on my computer,
then I can't help understanding why it happens.
But for that I don't need to see your full calculation, just
some small piece that generates the error.
Cheers,
Vladyslav
Am 17.07.20 um 16:16 schrieb Paulina Knees:
> Dear Vladyslav,
> It's quite big the expression of the squared amplitude because
> I'm working with a SUSY model generated by SARAH (munuSSM) , here is a piece of it
>
> \phi(p, MassChi(4))(\gamma^6 \gamma^{$AL($191)}(1/2(iCTW g2 IndexSum(UV(4,j1)*UV(j2,1),{j1,3})+1/2 i g1 STW IndexSum(UV(4,j1)*UV(2,j1),{j1,3})+1/2 i CTW g2 UV(4,6)* UV(2,6) + 1/2 i g1 STW UV(4,6)* UV(2,6) - 1/2 i CTW g2 UV(4,7)*UV(2,7)- 1/2 i g1 STW UV(4,7)*UV(2,7))) + \gamma^7 \gamma^{$AL($191)}(the same but *) (\phi(k1, MassChi(2)))
>
> Thank you very much for your answer,
>
> Cheers,
> Paulina
>
>
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