Minimal axion model from flavor

Lorenzo Calibbi, Florian Goertz, Diego Redigolo, Robert Ziegler, Jure Zupan

Research output: Contribution to journalArticlepeer-review


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.

Original languageEnglish
Article number095009
JournalPhysical Review D
Issue number9
StatePublished - 1 May 2017


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