$Z\rightarrow l_i^{\pm}l_j^{\mp}$ processes in the BLMSSM

TL;DR

This paper studies lepton flavor violating Z boson decays in a supersymmetric model with local baryon and lepton number symmetries, predicting branching ratios near current experimental limits.

Contribution

It introduces new gauginos and right-handed neutrinos into the BLMSSM, analyzing their effects on CLFV Z decays and providing predictions close to experimental bounds.

Findings

Branching ratios of Z→l_i^{±}l_j^{∓} are around 10^{-8} to 10^{-10}.

Predicted rates are near current experimental upper bounds.

Potential detectability in upcoming experiments.

Abstract

In a supersymmetric extension of the Standard Model(SM) where baryon and lepton numbers are local gauge symmetries (BLMSSM), we investigate the charged lepton flavor violating (CLFV) processes $Z\rightarrow l_i^{\pm}l_j^{\mp}$ after introducing the new gauginos and the right-handed neutrinos. In this model, the branching ratios of $Z\rightarrow l_i^{\pm}l_j^{\mp}$ are around ($10^{-8}\sim10^{-10}$), which approach the present experimental upper bounds. We hope that the branching ratios for these CLFV processes can be detected in the near future.