A Realistic U(2) Model of Flavor

por Robert Ziegler (TTP, Karlsruhe)

viernes 13 dic. 2019 12:00 → 13:30 Europe/Madrid

1001-Primera-1-1-1 - Paterna. (IFIC)

I will discuss a simple U(2) flavor model where all hierarchies in fermion masses and mixings arise from powers of a single small parameter. In contrast to previous U(2) models this setup can be realized without supersymmetry and provides an excellent fit to all SM flavor observables including neutrinos. The model predicts an upper bound on the neutrino mass scale and offers a natural option for adressing the Strong CP Problem and Dark Matter by identifying the Goldstone boson of the U(1) factor as the QCD axion.