Speaker
Graeme Crawford
(University of Glasgow)
Description
We consider a new class of flavour models where the spurion breaking the flavour symmetries of the Standard Model is in a non-minimal irrep. Via multiple insertions of this spurion, flavour hierarchies accidentally arise from initial $\mathcal{O}(1)$ untuned entries. By relying on non-Abelian symmetries, the resulting pattern of flavour-violating operators at dim-6 SMEFT can be distinct from related Abelian approaches such as Froggatt-Nielsen.
Author
Graeme Crawford
(University of Glasgow)
