Dear Sir,

I have a wrote a model consisting SM and Type I Seesaw. I want to make right neutrino as Dark matter. How do tell micromega, without adding any new fields ?
I have attached the model folder with this mail. Please find it.

Thanks,
Shivam Gola

Hi, i am writing this here because i felt not to stated my problem properly. I have wrote a model = SM +Type I seesaw+ Z2 symmetry, such that only R-neutrino is odd under Z2. But this raise a problem of non-invariant of dirac neutrino mass term under Z2. Can i rescue this model without introducing any new field or by modifying Z2 assignment of charges ?

Thanks,
Shivam Gola

Sorry, but this doesn't sound like a technical (SARAH) related problem, but a model building task. I don't think that I can help in this direction.

Hi,

Thanks for the suggestions.

One more query. Is it possible to assign a different Z2 charges within SU(2) doublet in SARAH ?

Thanks,
Shivam