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arXiv 1503.09041hep-ph
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从(广义)CP和离散味对称性预言轻子混合

Lepton Mixing Predictions from (Generalised) CP and Discrete Flavour Symmetry

Thomas Neder

摘要:

一类重要的味群是$Δ(6n^2)$系列,它是$U(3)$的子群,可以预测实验上可行的轻子混合参数,包括马约拉纳相。最著名的成员是$Δ(24)=S_4$。我目前的几个广泛的研究结果的轻子混合模型中获得的预测与$Δ(6n^2)$味组,保留完整的剩余$Z_2\times Z_2$或$Z_2$小组的中微子,并可以包括广义CP对称性。预测包括混合角和狄拉克CP相位一般;如果不变性下的广义CP对称性包括在内,也马约拉纳阶段。为此,味群和广义CP对称性的相互作用必须仔细研究。

英文摘要:

An important class of flavour groups, that are subgroups of $U(3)$ and that predict experimentally viable lepton mixing parameters including Majorana phases, is the $Δ(6n^2)$ series. The most well-known member is $Δ(24)=S_4$. I present results of several extensive studies of lepton mixing predictions obtained in models with a $Δ(6n^2)$ flavour group that preserve either the full residual $Z_2\times Z_2$ or a $Z_2$ subgroup for neutrinos and can include a generalised CP symmetry. Predictions include mixing angles and Dirac CP phase generally; and if invariance under a generalised CP symmetry is included, also Majorana phases. For this, the interplay of flavour group and generalised CP symmetry has to be studied carefully.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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