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High-quality axions in a class of chiral $U(1)$ gauge theories
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abstract
We show that there are many candidates for the quintessence and/or the QCD axions in a class of chiral $U(1)$ gauge theories. Their qualities are high enough to serve as the dark energy and/or to solve the strong CP problem. Interestingly, the high quality of axion is guaranteed by the gauged $U(1)$ and $\mathbf{Z}_{2N}$ symmetries and hence free from the non-perturbative quantum gravity corrections. Furthermore, our mechanism can be easily applied to the Fuzzy dark matter axion scenarios.
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Cited by 1 Pith paper
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Accidental Peccei-Quinn Symmetry From Gauged U(1) and a High Quality Axion
Three explicit axion models are built where a gauged axial U(1) makes the Peccei-Quinn symmetry accidental, preserving axion quality against quantum gravity and giving domain wall number one.
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