A Scotogenic Model with Two Inert Doublets

Abstract

In this work, we present a scotogenic model, where the neutrino mass is generated at one-loop diagrams. The standard model (SM) is extended by three singlet Majorana fermions and two inert scalar doublets instead of one doublet as in the minimal scotogenic model. The model scalar sector includes two CP-even, two CP-odd and two charged scalars in addition to the Higgs. The dark matter (DM) candidate could be either the light Majorana fermion (Majorana DM), or the lightest among the CP-even and the CP-odd scalars (scalar DM). We show that the model accommodates both Majorana and scalar DM within a significant viable parameter space, while considering all the relevant theoretical and experimental constraints such as perturbativity, vacuum stability, unitarity, the di-photon Higgs decay, electroweak precision tests and lepton flavor violating constraints. In addition to the collider signatures predicted by the minimal scotogenic model, our model predicts some novel signatures that can be probed through some final states such as $8~jets+\slashed{E}_T$, $1\ell+4~jets+\slashed{E}_T$ and $4b+\slashed{E}_T$.

23 pages, 1 table & 6 figures. Published version

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Cited by in corpus (5)

• On Minimal realization of Topological Lorentz Structures with one-loop Seesaw extensions in A${}_4$ Modular Symmetry
• Scotoseesaw model implied by dark right-handed neutrinos
• Generalised Casas-Ibarra Parametrisation for Majorana Neutrino Masses
• A Scotogenic Model as a Prototype for Leptogenesis with One Single Gauge Singlet
• The Scotogenic Model with Two Inert Doublets: Parameters Space and Electroweak Precision Tests