Possible roles of Peccei-Quinn symmetry in an effective low energy model

Abstract

Strong $CP$ problem is known to be solved by imposing Peccei-Quinn (PQ) symmetry. However, domain wall problem caused by the spontaneous breaking of its remnant discrete subgroup could make models invalid in many cases. We propose a model in which the PQ charge is assigned quarks so as to escape this problem without introducing any extra colored fermions. In the low energy effective model resulting after the PQ symmetry breaking, both the quark mass hierarchy and the CKM mixing could be explained through Froggatt-Nielsen mechanism. If the model is combined with the lepton sector supplemented by an inert doublet scalar and right-handed neutrinos, the effective model reduces to the scotogenic neutrino mass model in which both the origin of neutrino masses and dark matter are closely related. The strong $CP$ problem could be related to the quark mass hierarchy, neutrino masses and dark matter through the PQ symmetry.

arXiv comment15 pages, 2 figures, several improvements for clarification and references added, a version accepted for publication

References in corpus (20)

• Axion Cosmology
• Verifiable Radiative Seesaw Mechanism of Neutrino Mass and Dark Matter
• A lower bound on the right-handed neutrino mass from leptogenesis
• Scalar Multiplet Dark Matter
• Flaxion: a minimal extension to solve puzzles in the standard model
• Cold Dark Matter, Radiative Neutrino Mass, mu to e gamma, and Neutrinoless Double Beta Decay
• The Axiflavon
• Vacuum Stability Bounds in the Two-Higgs Doublet Model
• Reconciliation of CDM abundance and $\mu \to e\gamma$ in a radiative seesaw model
• Radiative seesaw: Warm dark matter, collider and lepton flavour violating signals
• Neutrino masses and CDM in a non-supersymmetric model
• Baryon number asymmetry and dark matter in the neutrino mass model with an inert doublet
• Leptogenesis and dark matter detection in a TeV scale neutrino mass model with inverted mass hierarchy
• WIMP Dark Matter and Neutrino Mass from Peccei-Quinn Symmetry
• Fermionic WIMPs and Vacuum Stability in the Scotogenic Model
• Enhancement of the annihilation of dark matter in a radiative seesaw model
• Collider and Dark Matter Searches in the Inert Doublet Model from Peccei-Quinn Symmetry
• Leptogenesis and dark matter unified in a non-SUSY model for neutrino masses
• Thermal leptogenesis in a TeV scale model for neutrino masses
• Radiative neutrino mass model with degenerate right-handed neutrinos

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• Pati-Salam unification with a spontaneous CP violation
• Singlet fermion dark matter and Dirac neutrinos from Peccei-Quinn symmetry
• Low scale leptogenesis in a model with promising $CP$ structure