Dirac neutrino from the breaking of Peccei-Quinn symmetry
Seungwon Baek
Abstract
We propose a model where Dirac neutrino mass is obtained from small vacuum expectation value (VEV) of neutrino-specific Higgs doublet without fine-tuning problem. The small VEV results from a seesaw-like formula with the high energy scale identified as the Peccei-Quinn (PQ) symmetry breaking scale. Axion can be introduced à la KSVZ or DFSZ. The model suggests neutrino mass, solution to the strong CP problem, and dark matter may be mutually interconnected.
Topics & Concepts
NeutrinoParticle physicsPhysicsSeesaw molecular geometryAxionHiggs bosonDirac (video compression format)Sterile neutrinoVacuum expectation valueSymmetry breakingDark matterSymmetry (geometry)Neutrino oscillationMathematicsGeometryDark Matter and Cosmic PhenomenaParticle physics theoretical and experimental studiesCosmology and Gravitation Theories