Mixing and 1-loop flavor structure of fermionic currents in the Standard   Model of electroweak interactions
  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. 
Bruno Machet (LPTHE)
hep-ph