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arXiv · 1208.6546

A Simple Grand Unified Relation between Neutrino Mixing and Quark Mixing

S. M. Barr·Heng-Yu Chen
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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 + 5-bar multiplets of SU(5). This simple assumption implies that both V_{CKM} and U_{MNS} are generated by a single matrix. The entire 3-by-3 complex mass matrix of the neutrinos M_{nu} 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 theta_{atm} less than or approximately 40 degrees. The leptonic Dirac CP phase is found to be somewhat greater than pi radians.

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S. M. Barr, Heng-Yu Chen. 2012-08-31. A Simple Grand Unified Relation between Neutrino Mixing and Quark Mixing. https://doi.org/10.1007/jhep11(2012)092

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