Generalised CP and Δ(6n2) family symmetry in semi-direct models of leptons

被引：29
作者：
Ding, Gui-Jun [1 ]
King, Stephen F. [2 ]
Neder, Thomas [2 ]
机构：
[1] Univ Sci & Technol China, Dept Modern Phys, Hefei 230026, Anhui, Peoples R China
[2] Univ Southampton, Sch Phys & Astron, Southampton SO17 1BJ, Hants, England
来源：
JOURNAL OF HIGH ENERGY PHYSICS | 2014年 / 12期
基金：
中国国家自然科学基金;
关键词：
Neutrino Physics; CP violation; Discrete and Finite Symmetries; DISCRETE FLAVOR SYMMETRIES; VIOLATION; MASSES; S-4;
D O I：
10.1007/JHEP12(2014)007
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 perform a detailed analysis of Delta(6n(2)) family symmetry combined with a generalised CP symmetry in the lepton sector, breaking to different remnant symmetries G(v) in the neutrino and G(l) in the charged lepton sector, together with different remnant CP symmetries in each sector. We discuss the resulting mass and mixing predictions for G(v) = Z(2) with G(l) = K-4, Z(p), p > 2 and G(v) = K-4 with G(l) = Z(2). All cases correspond to the preserved symmetry smaller than the full Klein symmetry, as in the semi-direct approach, leading to predictions which depend on a single undetermined real parameter, which mainly determines the reactor angle. We focus on five phenomenologically allowed cases for which we present the resulting predictions for the PMNS parameters as a function of n, as well as the predictions for neutrinoless double beta decay.
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页数：65
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