Minimal axion model from flavor

By L. Calibbi, Florian Goertz, D. Redigolo, R. Ziegler, Jure Zupan. 2017

186 citations recorded by the source corpus.

We show that solving the flavor problem of the Standard Model with a simple $U(1{)}_{H}$ flavor symmetry naturally leads to an axion that solves the strong $CP$ problem and constitutes a viable Dark Matter candidate. In this framework, the ratio of the axion mass and its coupling to photons is related to the SM fermion masses and predicted within a small range, as a direct result of the observed hierarchies in quark and charged lepton masses. The same hierarchies determine the axion couplings to fermions, making the framework very predictive and experimentally testable by future axion and precision flavor experiments.

Subfields: Astronomy and Astrophysics, Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/92f4d5be14a348c6cc0815be9dfae252df794d11

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Citations in the corpus

The landscape of QCD axion models (2020, background): “[546, 547]), in relation to possible solutions to the strong CP problem.”
Physics potential of the International Axion Observatory (IAXO) (2019, background): “It is worth mentioning that other recently proposed models/constructions like the minimal flavour violating axion [71], the axi-flavon [72] and flaxion [73] do not seem to be particularly astrophobic in general, although a recent study focused on minimality found two interesting exceptions [74].”
Stellar recipes for axion hunters (2017, background): “It would be interesting to investigate whether other classes of models, such as the well-motivated axion/flavon models [92, 93], could also produce good fits.”