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A 3-3-1 model with SU(8) unification | | R. Martinez
; F. Ochoa
; P. Fonseca
; | | Date: |
23 May 2011 | | Abstract: | We construct a 3-3-1 model for three families that can be embedded into a
single SU(8) unified model. Assuming appropriate branching rules and
symmetry-breaking pattern, we find a complete fermion content within
irreducible representations of SU(8), where light standard model fermions,
heavy 3-3-1 fermions and super-heavy fermions may be distinguished. In the
framework of the doubly lopsided mechanism, we obtain mass matrix structures
which exhibit nontrivial flavor hierarchical features. Among the up-type
quarks, one (top quark) has tree-level mass and two (charm and up) get masses
at one-loop level. Considering only dominant contributions, we may obtain the
ratios $|m_c/m_t| approx 7.4 imes 10^{-3}$ and $|m_u/m_c| approx 1.9 imes
10^{-3}$ with few assumptions on the free parameters and without any
hierarchical requirements on the Yukawa couplings. | | Source: | arXiv, 1105.4623 | | Services: | Forum | Review | PDF | Favorites | |
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