Low-scale leptogenesis and dark matter in a three-loop radiative seesaw model

Abstract

We show that three open questions in particle physics and cosmology: the origin of neutrino mass, the identity of dark matter, and the origin of the baryon asymmetry of the universe can be explained simultaneously in the three-loop seesaw model proposed by Krauss, Nasri, and Trodden. We discuss the difficulty of successful leptogenesis with three right-handed neutrinos, and we propose a scenario with four right-handed neutrinos that satisfies all observational constraints. This scenario predicts a sleptonlike particle as light as a few hundreds GeV that can be probed by future collider experiments.

19 pages, 6 figures, published version

References in corpus (7)

• The Sphaleron Rate in the Minimal Standard Model
• Neutrino mass, Dark Matter and Baryon Asymmetry via TeV-Scale Physics without Fine-Tuning
• Reconciliation of CDM abundance and $\mu \to e\gamma$ in a radiative seesaw model
• Common Origin of Neutrino Mass, Dark Matter, and Baryogenesis
• Fermionic WIMPs and Vacuum Stability in the Scotogenic Model
• Low scale thermal leptogenesis in neutrinophilic Higgs doublet models
• Lower bounds on lepton flavor violating branching ratios in a radiative seesaw model

Cited by in corpus (2)

• Conversion-Driven Leptogenesis: A Testable Theory of Dark Matter and Baryogenesis at the Electroweak Scale
• Phenomenological and cosmological implications of a scotogenic three-loop neutrino mass model