Speaker
Dr
Stefano Morisi
(IFIC)
Description
We suggest ways to model tri-bimaximal lepton mixing from first principles that avoid the problem of the vacuum alignment present in all models for tri-bimaximal mixing. This is achieved by using a single A4-triplet of Higgs scalars as well as three fermion triplets, and maintaining A4 as a symmetry of the full Lagrangian. The model realization we discuss is potentially testable at the LHC through the peculiar leptonic decay patterns of the fermionic and scalar triplet
Author
Dr
Stefano Morisi
(IFIC)