Charged lepton-flavor violating processes and suppression of nonunitary mixing effects in low-scale seesaw models

Abstract

We examine the parameter space region of the inverse seesaw model that is consistent with neutrino oscillation data. We focus on the correlation between the current limits from the search of the $\mu \to e\gamma$ lepton flavor violating decay and the non-standard effects associated with the presence of new heavy neutrino states. Unlike what we would expect from an inverse seesaw model, we present a structure for the neutrinos mass matrices in which the rates of charged lepton flavor-violating processes are negligible. Additionally, we provide a model based on symmetries for such a scenario.

arXiv comment18 pages, 3 figures and 3 tables; typos corrected, clarification and discussion added, version accepted for publication in PRD

References in corpus (24)

• Oscillating neutrinos and mu --> e, gamma
• 2020 Global reassessment of the neutrino oscillation picture
• Searches for Lepton Flavor Violation in the Decays tau -> e gamma and tau -> mu gamma
• The Belle II Physics Book
• Novel Supersymmetric SO(10) Seesaw Mechanism
• Flavour-Violating Charged Lepton Decays in Seesaw-Type Models
• Zeroes of the Neutrino Mass Matrix
• Unitarity of the Leptonic Mixing Matrix
• The design of the MEG II experiment
• Enhanced lepton flavour violation in the supersymmetric inverse seesaw model
• CP-violation from non-unitary leptonic mixing
• Minimal Radiative Neutrino Mass Mechanism for Inverse Seesaw Models
• Muon conversion to electron in nuclei in type-I seesaw models
• Looking for the minimal inverse seesaw realisation
• Imprints of massive inverse seesaw model neutrinos in lepton flavor violating Higgs boson decays
• Lepton flavor violation and non-unitary lepton mixing in low-scale type-I seesaw
• The reactor mixing angle and CP violation with two texture zeros in the light of T2K
• A Simple Realization of the Inverse Seesaw Mechanism
• Search for lepton-flavor-violating tau-lepton decays to $\ell \gamma$ at Belle
• Effects of heavy Majorana neutrinos on lepton flavor violating processes
• Fitting flavour symmetries: the case of two-zero neutrino mass textures
• Simple A4 models for dark matter stability with texture zeros
• HNL mass degeneracy: implications for low-scale seesaws, LNV at colliders and leptogenesis
• Comprehensive Analysis of Charged Lepton Flavour Violation in the Symmetry Protected Type-I Seesaw

Cited by in corpus (2)

• Lepton-flavor changing decays and non-unitarity in the inverse seesaw mechanism
• Effects of virtual Majorana neutrinos on charged Lepton Flavor Violation decays from a seesaw variant with radiatively induced light neutrino masses