Request for SU(5) Model

[najimuddin]

I am trying to build an SU(5) supersymmetric model with R-parity violating term. Like in paper "10.1007/JHEP07(2015)123 " by
Borut Bajc and Luca Di Luzio.

I have few questions:
a) Should I break the SU(5) to SU(3)xSU(2)xU(1)? Then proceed?
b) If not, then how can we define 5-plets, 10-plets or the kinetic term with all gauge fields?
c) In your model folder (except seesaw), it is not there, could you provide any reference for this?

I would be grateful if you could suggest me something related to these issues.

Thanks and Regards
Najimuddin Khan

[FStaub]

Hi,

it depends a bit what you want to study: the either option to implement that model is to assume to SU(5) is broken close to the GUT scale, and you can work from the very beginning in the SU(3)xSU(2)xU(1) basis. Then you can just use the standard MSSM+RPV and absorb the entire impact of the extra gauge bosons, Higgs states, etc. in the GUT boundary conditions.

If you want to start with SU(5) and want to break it at an intermediate scale, this is much more difficult. You would need to define two models which are then matched. One example where this has been done is the left-right model which is discussed in the appendix of 1109.5147. However, since this option is rarely used, it is less tested and documented. So, if possible, I would go with the first option.

Since I don't know that paper you pointing out, I don't know the details of the model, i.e. I can't give you a better guidance. Sorry.

Cheers,
Florian

[najimuddin]

Respected Sir,
Thank you very much