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arXiv 1108.4512hep-ph
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具有族对称性的费米子质量和味混合模型$SU(3)\otimes U(1)$

A Model of Fermion Masses and Flavor Mixings with Family Symmetry $SU(3)\otimes U(1)$

Wei-Min Yang, Qi Wang, Jin-Jin Zhong

摘要:

提出了族对称性$SU(3)\otimes U(1)$来解决费米子质量和味混合的味问题。它的破缺是由高能尺度上的黄子场实现的。另外,引入离散群$Z_{2}$产生微小的中微子质量,并在中能尺度下被实单线态标量场破缺。在对所有超重费米子进行积分和退耦后,得到了较好的低能有效理论。所有的费米子质量矩阵都由四个基本矩阵和十三个参数规律地刻画。该模型能很好地拟合和解释目前关于费米子质量和味混合的实验数据,特别是能很好地预测中微子物理中的第一代夸克质量和$θ^{\,l}_{13}$和$J_{CP}^{\,l}$的值。所有的结果都有望在未来的实验中得到验证。

英文摘要:

The family symmetry $SU(3)\otimes U(1)$ is proposed to solve flavor problems about fermion masses and flavor mixings. It's breaking is implemented by some flavon fields at the high-energy scale. In addition a discrete group $Z_{2}$ is introduced to generate tiny neutrino masses, which is broken by a real singlet scalar field at the middle-energy scale. The low-energy effective theory is elegantly obtained after all of super-heavy fermions are integrated out and decoupling. All the fermion mass matrices are regularly characterized by four fundamental matrices and thirteen parameters. The model can perfectly fit and account for all the current experimental data about the fermion masses and flavor mixings, in particular, it finely predicts the first generation quark masses and the values of $θ^{\,l}_{13}$ and $J_{CP}^{\,l}$ in neutrino physics. All of the results are promising to be tested in the future experiments.

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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