Lepton flavor violating processes \tau ->\mu\gamma$, $\tau-> 3\mu$ and $Z-> \mu\tau$ in the Supersymmetric economical 3-3-1 model

TL;DR

This paper investigates lepton flavor violating decays in the supersymmetric economical 3-3-1 model, deriving formulas and analyzing how LFV sources influence decay rates, with numerical results consistent with experimental bounds.

Contribution

It provides analytic formulas for cLFV decay branching ratios within the supersymmetric 3-3-1 model, highlighting the impact of LFV sources in slepton sectors and exploring parameter space.

Findings

LFV decay rates are significantly enhanced by LFV sources in slepton sectors.

Left-handed slepton sector contributions dominate over right-handed.

Model predicts light slepton spectrum compatible with current experimental bounds.

Abstract

In this work, we study the charged lepton flavor violating (cLFV) decays $\tau-> \mu\gamma$, $\tau-> 3\mu$ and $Z->\mu\tau$ in the framework of the Supersymmetric economical 3-3-1 model. Analytic formulas for branching ratios (BR) of these decays are presented. We assume that there exist lepton flavor violation (LFV) sources in both right- and left-handed slepton sectors. This leads to the strong enhancement of cLFV decay rates. We also show that the effects of the LFV source to the cLFV decay rates in the left-handed slepton sector are greater than those in the right- handed slepton sector. By numerical investigation, we show that the model under consideration contains the relative light mass spectrum of sleptons which satisfies the current experimental bounds on LFV processes in the limit of small $\tan \gamma$. The interplay between monopole and dipole operators also was studied.