# Exact accidental U(1) symmetries for the axion

@article{Darme2021ExactAU,
title={Exact accidental U(1) symmetries for the axion},
author={Luc Darm'e and Enrico Nardi},
journal={Physical Review D},
year={2021}
}
• Published 9 February 2021
• Physics
• Physical Review D
We study a class of gauge groups that can automatically yield a perturbatively exact PecceiQuinn 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.
4 Citations

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## References

SHOWING 1-10 OF 70 REFERENCES
Composite accidental axions
• Physics
• 2016
A bstractWe present several models where the QCD axion arises accidentally. Confining gauge theories can generate axion candidates whose properties are uniquely determined by the quantum numbers of
Discrete gauge symmetry in continuum theories.
• Physics, Medicine
Physical review letters
• 1989
It is pointed out that local symmetry invariance can masquerade as discrete global symmetries to an observer equipped with only low-energy probes, and black holes can carry discrete gauge charges, a form of nonclassical hair.
The structure of the gauge theory vacuum
• Physics
• 1976
Abstract The finite action Euclidean solutions of gauge theories are shown to indicate the existence of tunneling between topologically distinct vacuum configurations. Diagonalization of the
Vacuum Periodicity in a Yang-Mills Quantum Theory
• Physics
• 1976
We propose a description of the vacuum in Yang-Mills theory and arrive at a physical interpretation of the pseudoparticle solution and the attendant violation of symmetries. The existence of
Wormholes and Global Symmetries
• Physics
• 1989
Abstract We examine the effects that topological fluctuations in the structure of space-time have on the global U(1) symmetry of a scalar field theory. When the symmetry is not spontaneously broken
Naturally light invisible axion in models with large local discrete symmetries
• Physics
• 2003
We show that by introducing appropriate local ZN(N>13) symmetries in electroweak models it is possible to implement an automatic Peccei-Quinn symmetry, at the same time keeping the axion protected
Composite axion models and Planck scale physics
Abstract Recently it has been argued that global symmetry violating effects at the Planck scale could upset axion based solutions to the strong CP problem if there is no gauge symmetry to prevent the
Peccei-Quinn symmetry from a gauged discrete R symmetry
• Physics
• 2013
The axion solution to the strong CP problem calls for an explanation as to why the Lagrangian should be invariant under the global Peccei-Quinn (PQ) symmetry, U(1)PQ, to such a high degree of
A new light boson
It is pointed out that a global U(1) symmetry, that has been introduced in order to preserve the parity and time-reversal invariance of strong interactions despite the effects of instantons, would
Axion quality from superconformal dynamics
• Physics
• 2021
Abstract We discuss a possibility that a superconformal dynamics induces the emergence of a global U ( 1 ) PQ symmetry to solve the strong CP problem through the axion. Fields spontaneously breaking