Neutrinos in a left-right model with a horizontal symmetry

Abstract

We analyze the lepton sector of a Left-Right Model based on the gauge group SU(2)_L x SU(2)_R x U(1), concentrating mainly on neutrino properties. Using the seesaw mechanism and a horizontal symmetry, we keep the right-handed symmetry breaking scale relatively low, while simultaneously satisfying phenomenological constraints on the light neutrino masses. We take the right-handed scale to be of order 10's of TeV and perform a full numerical analysis of the model's parameter space, subject to experimental constraints on neutrino masses and mixings. The numerical procedure yields results for the right-handed neutrino masses and mixings and the various CP-violating phases. We also discuss phenomenological applications of the model to neutrinoless double beta decay, lepton-flavor-violating decays (including decays such as τ\to 3μ) and leptogenesis.

arXiv comment26 pages, 4 figures

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Cited by in corpus (10)

• Natural TeV-Scale Left-Right Seesaw for Neutrinos and Experimental Tests
• Lepton Flavour Violating Decays tau to lll and mu to e gamma in the Higgs Triplet Model
• keV Neutrino Model Building
• TeV Scale Left-Right Symmetry and Large Mixing Effects in Neutrinoless Double Beta Decay
• Perturbativity and mass scales of Left-Right Higgs bosons
• Interplay of type I and type II seesaw contributions to neutrino mass
• Muonium-antimuonium oscillations in effective field theory
• Lepton Flavour Violating tau Decays in the Left-Right Symmetric Model
• Flavour-Dependent Type II Leptogenesis
• Disentangling the Seesaw in the Left-Right Model -- An Algorithm for the General Case