Neutrino predictions from a left-right symmetric flavored extension of the standard model

Abstract

We propose a left-right symmetric electroweak extension of the Standard Model based on the $\Delta \left(27\right)$ family symmetry. The masses of all electrically charged Standard Model fermions lighter than the top quark are induced by a Universal Seesaw mechanism mediated by exotic fermions. The top quark is the only Standard Model fermion to get mass directly from a tree level renormalizable Yukawa interaction, while neutrinos are unique in that they get calculable radiative masses through a low-scale seesaw mechanism. The scheme has generalized $\mu -\tau$ symmetry and leads to a restricted range of neutrino oscillations parameters, with a nonzero neutrinoless double beta decay amplitude lying at the upper ranges generically associated to normal and inverted neutrino mass ordering.

20 pages, 4 figures. Published version

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• Linear seesaw mechanism from dark sector
• Sequentially loop-generated quark and lepton mass hierarchies in an extended Inert Higgs Doublet model
• Controlled fermion mixing and FCNCs in a $\Delta (27)$ 3+1 Higgs Doublet Model
• Dark Matter from a Radiative Inverse Seesaw Majoron Model
• $A_4$-based model with linear seesaw scheme for lepton mass and mixing
• Fermion mass hierarchy and g-2 anomalies in an extended 3HDM Model
• Neutrino phenomenology in a left-right $D_4$ symmetric model
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• Electroweak symmetry breaking in the inverse seesaw mechanism
• Phenomenological Study of Texture Zeros in Lepton Mass Matrices of Minimal Left-Right Symmetric Model
• Phenomenology of an Extended $1+2$ Higgs Doublet Model with $S_3$ Family Symmetry
• Predictive linear seesaw model with $\Delta \left(27\right)$ family symmetry