A simple grand unified relation between neutrino mixing and quark mixing
Journal
Journal of High Energy Physics
Journal Issue
11
Pages
92
Date Issued
2012
Author(s)
Barr, S. M.
Abstract
It is proposed that all flavor mixing is caused by the mixing of the three quark and lepton families with vectorlike fermions in 5 + 5̄ multiplets of SU(5). This simple assumption implies that both VCKM and UMNS are generated by a single matrix. The entire 3 × 3 complex mass matrix of the neutrinos Mv is then found to have a simple expression in terms of two complex parameters and an overall scale. Thus, all the presently unknown neutrino parameters are predicted. The best fits are for θatm ≲ 40°. The leptonic Dirac CP phase is found to be somewhat greater than π. © SISSA 2012.
Type
journal article