The Scale-Invariant Scotogenic Model

Understand

We investigate a minimal scale-invariant implementation of the scotogenic model and show that viable electroweak symmetry breaking can occur while simultaneously generating one-loop neutrino masses and the dark matter relic abundance.

• The model predicts the existence of a singlet scalar (dilaton) that plays the dual roles of triggering electroweak symmetry breaking and sourcing lepton number violation.
• Important constraints are studied, including those from lepton flavor violating effects and dark matter direct-detection experiments.
• The latter turn out to be somewhat severe, already excluding large regions of parameter space.