Lepton flavor violating Z and Higgs decays in the scotogenic model

In this work, we have studied lepton flavor violating (LFV) decays of Z gauge boson and Higgs boson (H) in the scotogenic model. We have computed branching ratios for the decays Z -> l(alpha)l(beta) and H -> l(alpha)l(beta) in this model. Here, l(alpha) and l(beta) are different charged lepton fields. After fitting to the neutrino oscillation observables in the scotogenic model, we have found that the branching ratios for the LFV decays of Z and H can be as large as similar to 10(-8) and similar to 10(-3) respectively. However, after satisfying the constraints due to non-observation of l(alpha) -> l(beta)gamma decays, the above mentioned branching ratio results are found to be suppressed by a factor of similar to 10(-7).

Automated summary

In this study, we investigated lepton flavor violating decays of Z gauge boson and Higgs boson in the scotogenic model. We calculated the branching ratios for these decays and found that they can be significant after considering neutrino oscillation observables. However, the branching ratio results are suppressed after satisfying constraints from other experimental observations.