Fermion Masses in SO(10) Models

Understand

We examine many SO(10) models for their viability or otherwise in explaining all the fermion masses and mixing angles.

• This study is carried out for both supersymmetric and non-supersymmetric models and with minimal ($10+\bar{126}$) and non-minimal ($10+\bar{126}+120$) Higgs content.
• Extensive numerical fits to fermion masses and mixing are carried out in each case assuming dominance of type-II or type-I seesaw mechanism.
• Required scale of the B-L breaking is identified in each case.