Minimal trinification
Journal Article
·
· Physical Review. D, Particles Fields
- Department of Physics, University of Illinois at Urbana-Champaign, 1110 West Green Street, Urbana, Illinois 61801 (United States)
We study the trinified model, SU(3){sub C}xSU(3){sub L}xSU(3){sub R}xZ{sub 3}, 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{yields}{nu}K{sup +} and p{yields}{mu}{sup +}K{sup 0} 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.
- OSTI ID:
- 20776692
- Journal Information:
- Physical Review. D, Particles Fields, Journal Name: Physical Review. D, Particles Fields Journal Issue: 3 Vol. 73; ISSN PRVDAQ; ISSN 0556-2821
- Country of Publication:
- United States
- Language:
- English
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