Higgs boson decays with lepton flavor violation in the $B-L$ symmetric SSM

TL;DR

This paper investigates lepton flavor violating Higgs decays within a B-L symmetric supersymmetric model, analyzing their potential observability alongside existing experimental constraints from rare decays and muon g-2.

Contribution

It provides a detailed analysis of LFV Higgs decays in a B-L extended MSSM, incorporating constraints from rare decays and muon g-2, highlighting potential signals beyond the Standard Model.

Findings

LFV Higgs decay rates can be within experimental reach.

Constraints from rare decays significantly restrict LFV Higgs decay parameter space.

Model predictions align with current experimental upper limits.

Abstract

Recently, the ATLAS and CMS Collaborations reported the latest experimental upper limits on the branching ratios of the lepton flavor violating (LFV) 125 GeV Higgs boson decays, $h\rightarrow e\mu$, $h\rightarrow e\tau$, and $h\rightarrow \mu\tau$. In this paper, we mainly investigate the LFV Higgs boson decays $h\rightarrow e\mu$, $h\rightarrow e\tau$, and $h\rightarrow \mu\tau$ in the minimal supersymmetric extension of the Standard Model with local $\emph{B-L}$ gauge symmetry. At the same time, the corresponding constraints from the LFV rare decays $\mu\rightarrow e\gamma$, $\tau\rightarrow e\gamma$, $\tau\rightarrow \mu\gamma$, and muon $(g-2)$ are considered to analyze the numerical results.