Lepton flavor violating Z and Higgs decays in the scotogenic model

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 $$Z\rightarrow \ell _\alpha \ell _\beta $$ Z → ℓ α ℓ β and $$H\rightarrow \ell _\alpha \ell _\beta $$ H → ℓ α ℓ β...

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Main Author: Raghavendra Srikanth Hundi
Format: Article
Language:English
Published: SpringerOpen 2022-06-01
Series:European Physical Journal C: Particles and Fields
Online Access:https://doi.org/10.1140/epjc/s10052-022-10453-3
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author Raghavendra Srikanth Hundi
author_facet Raghavendra Srikanth Hundi
author_sort Raghavendra Srikanth Hundi
collection DOAJ
description 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 $$Z\rightarrow \ell _\alpha \ell _\beta $$ Z → ℓ α ℓ β and $$H\rightarrow \ell _\alpha \ell _\beta $$ H → ℓ α ℓ β in this model. Here, $$\ell _\alpha $$ ℓ α and $$\ell _\beta $$ ℓ β 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 $$\sim 10^{-8}$$ ∼ 10 - 8 and $$\sim 10^{-3}$$ ∼ 10 - 3 respectively. However, after satisfying the constraints due to non-observation of $$\ell _\alpha \rightarrow \ell _\beta \gamma $$ ℓ α → ℓ β γ decays, the above mentioned branching ratio results are found to be suppressed by a factor of $$\sim 10^{-7}$$ ∼ 10 - 7 .
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spelling doaj.art-08d2c3c4d01649f9acad00e550dbc5ce2022-12-22T00:40:19ZengSpringerOpenEuropean Physical Journal C: Particles and Fields1434-60522022-06-0182611310.1140/epjc/s10052-022-10453-3Lepton flavor violating Z and Higgs decays in the scotogenic modelRaghavendra Srikanth Hundi0Department of Physics, Indian Institute of Technology HyderabadAbstract 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 $$Z\rightarrow \ell _\alpha \ell _\beta $$ Z → ℓ α ℓ β and $$H\rightarrow \ell _\alpha \ell _\beta $$ H → ℓ α ℓ β in this model. Here, $$\ell _\alpha $$ ℓ α and $$\ell _\beta $$ ℓ β 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 $$\sim 10^{-8}$$ ∼ 10 - 8 and $$\sim 10^{-3}$$ ∼ 10 - 3 respectively. However, after satisfying the constraints due to non-observation of $$\ell _\alpha \rightarrow \ell _\beta \gamma $$ ℓ α → ℓ β γ decays, the above mentioned branching ratio results are found to be suppressed by a factor of $$\sim 10^{-7}$$ ∼ 10 - 7 .https://doi.org/10.1140/epjc/s10052-022-10453-3
spellingShingle Raghavendra Srikanth Hundi
Lepton flavor violating Z and Higgs decays in the scotogenic model
European Physical Journal C: Particles and Fields
title Lepton flavor violating Z and Higgs decays in the scotogenic model
title_full Lepton flavor violating Z and Higgs decays in the scotogenic model
title_fullStr Lepton flavor violating Z and Higgs decays in the scotogenic model
title_full_unstemmed Lepton flavor violating Z and Higgs decays in the scotogenic model
title_short Lepton flavor violating Z and Higgs decays in the scotogenic model
title_sort lepton flavor violating z and higgs decays in the scotogenic model
url https://doi.org/10.1140/epjc/s10052-022-10453-3
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