Lepton Flavor Violating Radiative Decays in EW-Scale $\nu_R$ Model: An Update

TL;DR

This paper updates the analysis of lepton flavor violating decays in an extended mirror model, incorporating neutrino mixing with $A_4$ symmetry, and discusses implications for collider detection and lepton dipole moments.

Contribution

It provides an updated one-loop analysis of LFV decays in an extended mirror model with neutrino mixing and $A_4$ symmetry, including constraints from experiments and collider implications.

Findings

Current experimental limits constrain the model parameters.

Predictions for electric and magnetic dipole moments are provided.

Implications for mirror lepton detection at LHC and ILC are discussed.

Abstract

We perform an updated analysis for the one-loop induced lepton flavor violating radiative decays $l_i \to l_j \gamma$ in an extended mirror model. Mixing effects of the neutrinos and charged leptons constructed with a horizontal $A_4$ symmetry are also taken into account. Current experimental limit and projected sensitivity on the branching ratio of $\mu \to e \gamma$ are used to constrain the parameter space of the model. Calculations of two related observables, the electric and magnetic dipole moments of the leptons, are included. Implications concerning the possible detection of mirror leptons at the LHC and the ILC are also discussed.