Exact accidental U(1) symmetries for the axion

Abstract

We study a class of gauge groups that can automatically yield a perturbatively exact Peccei-Quinn symmetry, and we outline a model in which the axion quality problem is solved at all operator dimensions. Gauge groups belonging to this class can also enforce and protect accidental symmetries of the clockwork type, and we present a toy model where an `invisible' axion arises from a single breaking of the gauge and global symmetries.

arXiv comment6 pages

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Cited by in corpus (8)

• Chiral models of composite axions and accidental Peccei-Quinn symmetry
• Axion Quality Problem Alleviated by Non-Minimal Coupling to Gravity
• High Quality Axion in Supersymmetric Models
• Anomaly-free ALP from non-Abelian flavor symmetry
• A Lighter QCD Axion from Anarchy
• Peccei-Quinn Symmetry Breaking via Asymptotically Safe Dynamical Scalegenesis: A Walking Axicolor and Axion
• The axion flavour connection
• Confinement On the Moose Lattice