Left-right models with light neutrino mass prediction and dominant neutrinoless double beta decay rate

Abstract

In TeV scale left-right symmetric models, new dominant predictions to neutrinoless double beta decay and light neutrino masses are in mutual contradiction because of large contribution to the latter through popular seesaw mechanisms. We show that in a class of left-right models with high-scale parity restoration, these results coexist without any contravention with neutrino oscillation data and the relevant formula for light neutrino masses is obtained via gauged inverse seesaw mechanism. The most dominant contribution to the double beta decay is shown to be via $W_L^{-}-W_R^{-}$ mediation involving both light and heavy neutrino exchanges, and the model predictions are found to discriminate whether the Dirac neutrino mass is of quark-lepton symmetric origin or without it. We also discuss associated lepton flavor violating decays.

6 pages LATEX, 3 eps figures, new refs. added, published version in Phys. Lett. B

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• Light Sterile Neutrino and Dark Matter in Left-Right Symmetric Models Without Higgs Bidoublet
• Extending two Higgs doublet models for two-loop neutrino mass generation and one-loop neutrinoless double beta decay
• Neutrinoless double beta decay and lepton flavour violation in broken $\mu -\tau$ symmetric neutrino mass models
• Neutrinoless double beta decay in Left-Right symmetric model with double seesaw mechanism
• Lepton Number Violation, Lepton Flavour Violation and Baryogenesis in Left-Right Symmetric Model
• Neutrinoless double beta decay and the muonium-to-antimuonium transition in models with a doubly charged scalar
• Singlet Fermion Assisted Dominant Seesaw with Lepton Flavor and Number Violations and Leptogenesis
• Natural quark mixing and inverse seesaw in a left-right model with an axion
• Neutrino Mass and Neutrinoless double beta decay in SO(10) GUT with Pati-Salam symmetry
• Neutrino mass and charged lepton flavor violation in an extended left-right symmetric model