Fits to SO(10) Grand Unified Models

Understand

We perform numerical fits of Grand Unified Models based on SO(10), using various combinations of 10-, 120- and 126-dimensional Higgs representations.

• Both the supersymmetric and non-supersymmetric versions are fitted, as well as both possible neutrino mass orderings.
• In contrast to most previous works, we perform the fits at the weak scale, i.e.
• we use RG evolution from the GUT scale, at which the GUT-relations between the various Yukawa coupling matrices hold, down to the weak scale.