Mixing and 1-loop flavor structure of fermionic currents in the Standard Model of electroweak interactions

Bruno Machet (1)

1 LPTHE - Laboratoire de Physique Théorique et Hautes Energies

We show that, unlike mass matrices, the fermionic gauge currents of the Standard Model exhibit, at the quantum level, remarkable SU(2)_f flavor properties at the observed values of the mixing angles. They accommodate all measured mixing for three families of quarks, and, for neutrinos, maximal theta_{23}, quark-lepton complementarity tan(2 theta_c)=1/2 <--> \tan (2 theta_{12})=2, and a not so small sin^2(2 theta_{13}) = .267 within the present 90% c.l. interval of the T2K experiment.

Mots clés: fermionic mixing and currents; flavor symmetry

Domaines: Physique des Hautes Energies - Phénoménologie [hep-ph]

Bruno Machet. Mixing and 1-loop flavor structure of fermionic currents in the Standard Model of electroweak interactions. 2012. ⟨hal-00682832⟩