Hi Florian,

I'm having some trouble implementing a rather fancy model in SARAH. The model contains two fermions, a triplet and a quadruplet, that mixed with the leptons via SM vev. Until here everything seems to work. The problem arise when I introduce a scalar quintuplet and I check the vertex [{Fe,bar[Fe],VWp}], which gives me the non-zero result:

{{Fe[{gt1}], bar[Fe[{gt2}]], VWp[{lt3}]},
{(g2 conj[Ue[gt2, 5]] (-I Sig[1, lt1d, lt2d] + Sig[2, lt1d, lt2d]) Ue[gt1,5])/(2 Sqrt[2]), LorentzProduct[gamma[lt3], PL]}, {(I g2 conj[Ve[gt1,5]] (Sig[1, lt2d, lt1d] + I Sig[2, lt2d, lt1d]) Ve[gt2,5])/(2 Sqrt[2]), LorentzProduct[gamma[lt3], PR]}}

The thing is that I just added the quintuplet without even interaction. The problem disappears if I remove the quintuplet or the mixing of the leptons with the quadruplet fermion.

I attached the model file. Can you please tell me if I'm missing something or how to handle it?

Thank you very much,
Cheers!

Hi,

the problem was that the generators of the 3 got overwritten by the one of the 4. This is hopefully fixed in the file attached. Replace it in Package/GroupTheory.

Cheers,
Florian

Hi Florian,

Yeah, it works.
Thanks!

Cheers