Neutrino masses and proton decay modes in SU(3)×SU(3)×SU(3) trinification
Journal
Physical Review D
Journal Volume
33
Journal Issue
3
Pages
763-772
Date Issued
1986
Author(s)
Abstract
A detailed study of the Higgs potential and the Higgs-fermion Yukawa couplings in the SU(3)×SU(3)×SU(3) trinification model proposed by de Rujula, Georgi, and Glashow is carried out. Spontaneous symmetry breakdown to SU(3)×SU(2)×U(1) is analyzed, stability of the ground-state vacuum assured, and the Higgs- and gauge-boson mass matrices exhibited. The most economical method of generating all fermion masses and mixings is given. The large corrections to the masses of the neutral leptons are worked out at the one- and two-loop levels and shown to be stable. The new neutral leptons (neutrettos) turn out to be rather heavy (100 TeV). The mass hierarchy of the neutrinos is >>e. $nu sub tau can be a few keV, a few eV, and e10-4 eV. The e- mixing angle is about 10-2. The dominant proton-decay modes are pK+ and p0+ with possibly comparable rates. Other modes are suppressed. For example, (p+)/ (pK+)10-2, (pe+0)(p+0) (1/14), and pK0+ is absent. © 1986 The American Physical Society.
Type
journal article