Reloading the axion in a 3-3-1 setup
Alex G. Dias, Julio Leite, J. W. F. Valle, Carlos A. Vaquera-Araujo
Abstract
We generalize the idea of the axion to an extended electroweak gauge symmetry setup. We propose a minimal axion extension of the Singer-Valle-Schechter (SVS) theory, in which the standard model fits in SU(3)L⊗U(1)X, the number of families results from anomaly cancellation, and the Peccei-Quinn (PQ) solution to the strong-CP problem is implemented. Neutrino masses arise from a type-I Dirac seesaw mechanism, suppressed by the ratio of SVS and PQ scales, suggesting the existence of new physics at a moderate SVS scale. Novel features include an enhanced axion coupling to photons when compared to the DFSZ axion, as well as flavor-changing axion couplings to quarks.
Topics & Concepts
AxionParticle physicsPhysicsStrong CP problemElectroweak interactionNeutrinoSeesaw molecular geometryQuarkAnomaly (physics)Seesaw mechanismStandard Model (mathematical formulation)Physics beyond the Standard ModelPhotonCoupling (piping)Gauge (firearms)Dark matterQuantum mechanicsHistoryMechanical engineeringEngineeringArchaeologyDark Matter and Cosmic PhenomenaParticle physics theoretical and experimental studiesCosmology and Gravitation Theories