2006/01/06 by J. Sayre, Joshua Sayre, S. Wiesenfeldt +2 · 2 citations
Physics and Astronomy · #Black Holes and Theoretical Physics #Higgs boson #Higgs sector #Neutrino #Neutrino Physics Research #Particle physics #Particle physics theoretical and experimental studies #Physics #Proton decay #Seesaw mechanism #Seesaw molecular geometry #Superpotential #Supersymmetry #hep-ph
paper · pdf · doi:10.1103/physrevd.73.035013
published as Phys.Rev. D73 (2006) 035013 · 23 pages, uses axodraw
arxiv created 2006/01/06 · openalex publication_date 2006/02/27 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We study the trinified model, SU(3)C\ifmmode×\else\texttimes\fiSU(3)L\ifmmode×\else\texttimes\fiSU(3)R\ifmmode×\else\texttimes\fiℤ3, with the minimal Higgs sector required for symmetry breaking. There are five Higgs doublets, and gauge-coupling unification results if all five are at the weak scale, without supersymmetry. The radiative seesaw mechanism yields sub-eV neutrino masses, without the need for intermediate scales, additional Higgs fields, or higher-dimensional operators. The proton lifetime is above the experimental limits, with the decay modes p\ensuremath→\ensuremathνK+ and p\ensuremath→\ensuremathμ+K0 potentially observable. We also consider supersymmetric versions of the model, with one or two Higgs doublets at the weak scale. The radiative seesaw mechanism fails with weak-scale supersymmetry due to the nonrenormalization of the superpotential, but operates in the split-SUSY scenario.