Toward a unified interpretation of quark and lepton mixing from flavor and CP symmetries

被引:26
作者
Li, Cai-Chang [1 ]
Lu, Jun-Nan [1 ]
Ding, Gui-Jun [1 ]
机构
[1] Univ Sci & Technol China, 96 JinZhai Rd, Hefei 230026, Anhui, Peoples R China
来源
JOURNAL OF HIGH ENERGY PHYSICS | 2018年 / 02期
基金
中国国家自然科学基金; 中国博士后科学基金;
关键词
CP violation; Discrete Symmetries; Neutrino Physics; DISCRETE SYMMETRIES; MAJORANA NEUTRINOS; VIOLATING PARAMETERS; PREDICTIONS; DIRAC; DELTA(6N(2)); PHASES; PHYSICS; MATRIX; MASSES;
D O I
10.1007/JHEP02(2018)038
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 discussed the scenario that a discrete flavor group combined with CP symmetry is broken to Z(2) x CP in both neutrino and charged lepton sectors. All lepton mixing angles and CP violation phases are predicted to depend on two free parameters theta(tau) and theta(nu) varying in the range of [0, pi). As an example, we comprehensively study the lepton mixing patterns which can be derived from the flavor group Delta(6n(2)) and CP symmetry. Three kinds of phenomenologically viable lepton mixing matrices are obtained up to row and column permutations. We further extend this approach to the quark sector. The precisely measured quark mixing angles and CP invariant can be accommodated for certain values of the free parameters theta(u) and theta(d). A simultaneous description of quark and lepton flavor mixing structures can be achieved from a common flavor group Delta(6n(2)) and CP, and accordingly the smallest value of the group index n is n = 7.
引用
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页数:51
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