Dark matter and lepton flavour phenomenology in a singlet-doublet scotogenic model

Abstract

We study the dark matter phenomenology of scotogenic frameworks through a rather illustrative model extending the Standard Model by scalar and fermionic singlets and doublets. Such a setup is phenomenologically attractive since it provides the radiative generation of neutrino masses, while also including viable candidates for cold dark matter. We employ a Markov Chain Monte Carlo algorithm to explore the associated parameter space in view of numerous constraints stemming from the Higgs mass, the neutrino sector, dark matter, and lepton-flavour violating processes. After a general discussion of the results, we focus on the case of fermionic dark matter, which remains rather uncovered in the literature so far. We discuss the associated phenomenology and show that in this particular case a rather specific mass spectrum is expected with fermion masses just above 1 TeV. Our study may serve as a guideline for future collider studies.

30 pages, 12 figures, 5 ancillary files, discussion improved, ancillary files updated, matches journal version

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Cited by in corpus (11)

• Lepton portal dark matter at muon colliders: Total rates and generic features for phenomenologically viable scenarios
• CDF-II $W$ Boson Mass Anomaly in the Canonical Scotogenic Neutrino-Dark Matter Model
• Absolute neutrino mass scale and dark matter stability from flavour symmetry
• Dark matter indirect detection limits from complete annihilation patterns
• Singlet-Doublet Fermionic Dark Matter in Gauge Theory of Baryons
• Revisiting the Universal Texture Zero of Flavour: a Markov Chain Monte Carlo Analysis
• Exploring Scotogenic Parameter Spaces and Mapping Uncharted Dark Matter Phenomenology with Multi-Objective Search Algorithms
• A Scotogenic Model as a Prototype for Leptogenesis with One Single Gauge Singlet
• Probing Leptophobic Dark Sectors via Gravitational Wave Signatures
• Cogenesis of visible and dark matter in a scotogenic model
• Feasibility to probe the dynamical scotogenic model at the LHC