Phenomenological profile of scotogenic fermionic dark matter

Abstract

We consider the possibility that neutrino masses arise from the exchange of dark matter states. We examine in detail the phenomenology of fermionic dark matter in the singlet-triplet scotogenic reference model. We explore the case of singlet-like fermionic dark matter, taking into account all co-annihilation effects relevant for determining its relic abundance, such as fermion-fermion and scalar-fermion co-annihilation. Although this in principle allows for dark matter below 60 GeV, the latter is in conflict with charged lepton flavour violation (cLFV) and/or collider physics constraints. We examine the prospects for direct dark matter detection in upcoming experiments up to 10 TeV. Fermion-scalar coannihilation is needed to obtain viable fermionic dark matter in the 60-100 GeV mass range. Fermion-fermion and fermion-scalar coannihilation play complementary roles in different parameter regions above 100 GeV.

27 pages, 15 figures, 6 tables

References in corpus (4)

• Inert Doublet Model and LEP II Limits
• Natural Dark Matter from an Unnatural Higgs Boson and New Colored Particles at the TeV Scale
• Gluino Annihilations and Neutralino Dark Matter
• W-mass Anomaly in the Simplest Linear Seesaw Mechanism

Cited by in corpus (5)

• Axion Paradigm with Color-Mediated Neutrino Masses
• Dark matter as the source of neutrino mass: theory overview and experimental prospects
• Dark matter for Majorana neutrinos in a ${\mathbb{Z}}_4$ symmetry
• Scrutinizing Fermionic Dark Matter in Scotogenic Model with Low Reheating Temperature
• A Scotogenic Model as a Prototype for Leptogenesis with One Single Gauge Singlet