The scale-invariant scotogenic model

Amine Ahriche, Kristian L. McDonald, Salah Nasri

Research output: Contribution to journalArticlepeer-review

44 Citations (Scopus)


Abstract: 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. None the less, viable regions of parameter space are found, corresponding to dark matter masses below (roughly) 10 GeV and above 200 GeV.

Original languageEnglish
Article number182
JournalJournal of High Energy Physics
Issue number6
Publication statusPublished - Jun 1 2016


  • Beyond Standard Model
  • Neutrino Physics

ASJC Scopus subject areas

  • Nuclear and High Energy Physics


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