Dark Matter candidates in a Type-II radiative neutrino mass model

Abstract

We explore the connection between Dark Matter and neutrinos in a model inspired by radiative Type-II seessaw and scotogenic scenarios. In our model, we introduce new electroweakly charged states (scalars and a vector-like fermion) and impose a discrete ${\mathbb{Z}}_2$ symmetry. Neutrino masses are generated at the loop level and the lightest ${\mathbb{Z}}_2$-odd neutral particle is stable and it can play the role of a Dark Matter candidate. We perform a numerical analysis of the model showing that neutrino masses and flavour structure can be reproduced in addition to the correct dark matter density, with viable DM masses from 700 GeV to 30 TeV. We explore direct and indirect detection signatures and show interesting detection prospects by CTA, Darwin and KM3Net and highlight the complementarity between these observables.

37 pages, 13 figures; mu to e gamma analysis added, matches the version published in JHEP

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Cited by in corpus (5)

• Higgs-boson visible and invisible constraints on hidden sectors
• Common origin of radiative neutrino mass, dark matter and leptogenesis in scotogenic Georgi-Machacek model
• Minimal Consistent Dark Matter models for systematic experimental characterisation: Fermion Dark Matter
• Neutrino magnetic moment and inert doublet dark matter in a Type-III radiative scenario
• WIMP Dark Matter in the U$\mu \nu$SSM