Neutrino radiative decay and lepton flavor violation in supersymme tric models

TL;DR

This paper investigates neutrino radiative decay and lepton flavor violation within supersymmetric models, showing that transition magnetic moments can be significantly enhanced under certain parameters, impacting neutrino physics and model predictions.

Contribution

It provides a detailed analysis of neutrino radiative decay in MSSMRN and SU(5)RN models, highlighting potential enhancements of transition magnetic moments due to supersymmetric parameters.

Findings

Transition magnetic moments can be several times larger than in the standard model.

Enhanced magnetic moments depend on SUSY parameters and neutrino mixing angles.

Results are compatible with relic density constraints.

Abstract

The radiative decay of neutrino,such as (\bar{\nu_{\tau}}: \longrightarrow: \nu_{\mu}+\gamma), in the minimal supersymmetric standard model with right-handed neutrinos (MSSMRN) and in the (SU(5)) grand unified theory with right-handed neutrinos((SU(5)RN))model is examined.In these models,the transition magnetic moment of neutrino is directly proportional to the neutrino mass.For different values on SUSY parameters (compatible with the relic density) and for large mixing angle solution to the atmospheric neutrino problem,the transition magnetic moment can be a few times greater than,or comparable to,the value of the standard model (with a right-handed neutrino singlet added).