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Abstract |
I present a Grand Unified Theory of Flavour, based on SO(10) together with a non-Abelian
discrete group S4. The CSD2 flavon vacuum alignment is discussed. The Yukawa matrices are
derived and neutrino masses emerge from the type I seesaw mechanism. A full numerical fit is
performed with 15 input parameters generating 19 presently constrained observables. The
model predicts a normal neutrino mass ordering with a CP oscillation phase of 260 degrees, an
atmospheric angle in the first octant and neutrinoless double beta decay with m= 11 meV. I also
discuss N2 leptogenesis, which fixes the second right-handed neutrino mass to be M2~
2*10^11 GeV, in the natural range predicted by the model. |
