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arXiv 0910.5467hep-ph
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中微子与夸克,MNS与CKM

Neutrinos versus Quarks, MNS versus CKM

Mu-Chun Chen, K. T. Mahanthappa

摘要:

我们回顾了夸克和轻子扇区的费米子质量和混合模型的最新进展。重点讨论了基于有限群族对称性的模型。特别是,我们描述了一个最近的模型的基础上SU(5)结合家庭对称的基础上的双四面体群,T '。在这个模型中,一个近三双极大MNS矩阵和一个现实的CKM矩阵同时产生的MNS矩阵得到稍微修改凭借具有Georgi-Jarlskog关系。由于T '中存在复Clebsch-Gordon系数,该模型中的CP破坏完全是几何起源。

英文摘要:

We review recent developments in models of fermion masses and mixing for both quark and lepton sectors. Emphases are given to models based on finite group family symmetries. In particular, we describe one recent model based on SU(5) combined with a family symmetry based on the double tetrahedral group, T'. In this model, a near tri-bimaximal MNS matrix and a realistic CKM matrix are simultaneously generated; the MNS matrix gets slightly modified by virtue of having the Georgi-Jarlskog relations. Due to the presence of complex Clebsch-Gordon coefficients in T', CP violation in this model is entirely geometrical in origin.

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