Leptonic source of dark matter and radiative Majorana or Dirac neutrino mass
Ernest Ma
Abstract
The notion of U(1) lepton number (which may only be softly broken) is applied to models of dark matter which interacts with leptons. Previous scotogenic models of Majorana or Dirac neutrino mass are shown to be derivable in this framework without additional symmetries. Only complete renormalizable theories are considered. A new explicit class of models with Zn (n≥5) lepton and dark symmetry for Dirac neutrinos is derived, as well as a new example of Z3 dark symmetry.
Topics & Concepts
PhysicsNeutrinoParticle physicsMAJORANALeptonDark matterDirac (video compression format)Sterile neutrinoMajorana equationSymmetry (geometry)Lepton numberNeutrino oscillationNuclear physicsElectronGeometryMathematicsDark Matter and Cosmic PhenomenaParticle physics theoretical and experimental studiesCosmology and Gravitation Theories