A supersymmetric grand unified theory of flavour with PSL2(7) x SO(10)

被引：58
|
作者：
King, Stephen F. [1 ]
Luhn, Christoph [1 ]
机构：
[1] Univ Southampton, Sch Phys & Astron, Southampton SO17 1BJ, Hants, England
来源：
NUCLEAR PHYSICS B | 2010年 / 832卷 / 1-2期
关键词：
Discrete family symmetries; Tri-bimaximal mixing; GUT; HANDED NEUTRINO DOMINANCE; SU(3) FAMILY SYMMETRY; MIXING ANGLES; SOLAR NEUTRINOS; FERMION MASSES; S-3; SYMMETRY; A(4); MATRIX; SUBGROUPS;
D O I：
10.1016/j.nuclphysb.2010.02.019
中图分类号：
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号：
摘要：
We construct a realistic Supersymmetric Grand Unified Theory of Flavour based on PSL2(7) x SO(10), where the quarks and leptons in the 16 of SO(10) are assigned to the complex triplet representation of PSL2(7), while the flavons are assigned to a combination of sextets and anti-triplets of PSL2(7). Using a D-term vacuum alignment mechanism, we require the flavon sextets of PSL2(7) to be aligned along the 3-3 direction leading to the third family Yukawa couplings, while the flavon anti-triplets describe the remaining Yukawa couplings. Other sextets are aligned along the neutrino flavour symmetry preserving directions leading to tri-bimaximal neutrino mixing via a type II see-saw mechanism, with predictions for neutrinoless double beta decay and cosmology. (C) 2010 Elsevier B.V. All rights reserved.
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页码：414 / 439
页数：26
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