Peccei-Quinn symmetry as the origin of Dirac Neutrino Masses

Abstract

We propose a model of Dirac neutrino masses generated at one-loop level. The origin of this mass is induced from Peccei-Quinn symmetry breaking which was proposed to solve the so-called strong CP problem in QCD, therefore, the neutrino mass is connected with the QCD scale, ${\Lambda }_{\mathrm{QCD}}$. We also study the parameter space of this model confronting with neutrino oscillation data and leptonic rare decays. The phenomenological implications to leptonic flavor physics such as the electromagnetic moment of charged leptons and neutrinos are studied. Axion as the dark matter candidate is one of the byproduct in our scenario. Di-photon and Z-photon decay channels in the LHC Higgs search are investigated, we show that the effects of singly charged singlet scalar can be distinguished from the general two Higgs doublet model.

22 pages, 13 figures, 2 tables. Typos corrected, appendix and references added. Published version

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• One-loop Dirac neutrino mass and mixed axion/WIMP dark matter
• New Collider Searches for Axion-like Particles Coupling to Gluons
• Dirac neutrinos from Peccei-Quinn symmetry: a fresh look at the axion
• Dirac neutrino from the breaking of Peccei-Quinn symmetry
• Peccei-Quinn symmetry for Dirac seesaw and leptogenesis
• Probing Models of Dirac Neutrino Masses via the Flavor Structure of the Mass Matrix
• Dirac neutrinos from Peccei-Quinn symmetry: two examples
• Reloading the Axion in a 3-3-1 setup
• Discrete symmetries and mixing of Dirac neutrinos
• A connection between flavour anomaly, neutrino mass, and axion
• An SO(10) \times SO(10)' model for common origin of neutrino masses, ordinary and dark matter-antimatter asymmetries
• Prospects for probing axionlike particles at a future hadron collider through top quark production
• Singlet fermion dark matter and Dirac neutrinos from Peccei-Quinn symmetry
• Axionic Dirac seesaw and electroweak vacuum stability
• From Peccei Quinn symmetry to mass hierarchy problem
• Concurrent Exploration of Axion-Like Particle Interactions with Gauge Bosons at the LHC
• Partial mass-degeneracy and spontaneous CP violation in the lepton sector
• Searching for long-lived axion-like particles via displaced vertices at the HL-LHC
• Axion-Neutrino Interplay in a Gauged Two-Higgs-Doublet Model