Speaker
Description
Invisible axion models are well motivated solutions to the strong CP problem, yet they typically contain a largely unconstrained flavour sector. I will present a predictive class of Minimal Flavoured DFSZ models in which the Peccei–Quinn symmetry simultaneously explains the observed pattern of quark masses and mixing while possessing a domain wall number of unity. The flavour structure is sufficiently constrained that all Yukawa couplings can be reconstructed from measured quark masses and CKM observables, leading to analytic predictions for flavour-violating Higgs and axion interactions. I will present the resulting phenomenology and demonstrate how current precision flavour measurements translate into robust constraints on the axion decay constant and the underlying scale of new physics. This framework provides a concrete example of how flavour physics can substantially enhance the discovery potential for invisible axions beyond traditional astrophysical and cosmological probes.
| Primary Abstract Topic | Theory: Axions and Wave-Like-DM |
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