Comprehensive Analysis on Lepton Flavor Violating Higgs Boson to mu tau Decay in Supersymmetry without R Parity

TL;DR

This paper provides a detailed one-loop analysis of Higgs to mu tau decay in supersymmetric models with R parity violation, showing that observable decay rates are possible within current experimental constraints.

Contribution

It offers the first comprehensive one-loop calculation of lepton flavor violating Higgs decays in R parity violating supersymmetry, considering neutrino mass bounds.

Findings

Branching ratios can be significant within experimental bounds.

R parity violating parameters are constrained but still allow detectable decays.

Analysis includes comments on related decay channels h -> e mu and h -> e tau.

Abstract

In this paper we examine thoroughly the Higgs boson to mu tau decay via processes involving R parity violating couplings. By means of full one-loop diagrammatic calculations, we found that even if known experimental constraints, particularly including the stringent sub-eV neutrino mass bounds, give strong restrictions on some of the R parity violating parameters, the branching ratio could still achieve notable value in the admissible parameter space. Hence, the flavor violating leptonic decay is of interest to future experiments. We present here key results of our analysis. Based on the analysis, we give some comments on h -> e mu and h -> e tau also.