Speaker
Prof.
Graham G. Ross
(Oxford University)
Description
In the lepton sector the atmospheric and solar mixing angles are large, in stark contrast with the quark sector where all the mixing angles are small. I will discuss how, if neutrino masses are generated by the seesaw mechanism, this difference can naturally result in a manner consistent with an underlying quark-lepton symmetry. Morever the near tri-bi-maximal mixing observed in the neutrino sector strongly suggests that there is an underlying spontaneously broken non Abelian discrete family symmetry.
Author
Prof.
Graham G. Ross
(Oxford University)