The New Extended Left-Right Symmetric Grand Unified Model with SO(3) Family Symmetry
arXiv:0901.0233 · doi:10.1016/j.nuclphysb.2009.05.028
Abstract
We suggest a new left-right symmetric grand unified model by extending Pati-Salam group to contain an isospin SU(2) and a flavor SO(3) subgroup, where the superheavy fermions are introduced as a mirror to the low-energy standard model fermions. The model undergoes three steps to break to the SM by means of the specified Higgs multiplets. The model few parameters can elegantly accommodate whole mass spectra for all the particles at the electroweak scale, especially, two different flavor mixing for the quark and lepton sectors are reproduced in agreement with the current experimental data very well. The strong CP violation is excellently explained. The matter-antimatter asymmetry in the universe is successfully implemented through the B-L violating decays of the superheavy gauge bosons. The model also predicts that the lightest right-handed Majorana neutrino, whose mass is about several hundred GeVs and energy is about GeV, is possibly a candidate for the dark matter.
arXiv comment24 pages, 4 figures; to revise the old manuscript and add some new contents
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- Generic dark matter signature for gamma-ray telescopes
- Fermion Mixings in SU(9) Family Unification
- Baryogenesis and Asymmetric Dark Matter from The Left-Right Mirror Symmetric Model
- A Model of Four Generation Fermions and Cold Dark Matter and Matter-Antimatter Asymmetry
- A Model of Fermion Masses and Flavor Mixings with Family Symmetry