Lepton flavor violating Z and Higgs decays in the scotogenic model

Hundi, Raghavendra Srikanth (2022) Lepton flavor violating Z and Higgs decays in the scotogenic model. The European Physical Journal C, 82 (6). pp. 1-13. ISSN 1434-6052

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Abstract

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→ ℓαℓβ and H→ ℓαℓβ in this model. Here, ℓα and ℓβ 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 ∼ 10 - 8 and ∼ 10 - 3 respectively. However, after satisfying the constraints due to non-observation of ℓα→ ℓβγ decays, the above mentioned branching ratio results are found to be suppressed by a factor of ∼ 10 - 7. © 2022, The Author(s).

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