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arXiv 1310.7833hep-ph
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具有味对称性的超对称和全息复合Higgs模型中的荷轻子味破坏

Charged lepton flavour violation in supersymmetric and holographic composite Higgs models with flavour symmetries

C. Hagedorn

摘要:

我们讨论了带电轻子味违反过程,如在超对称扩展的标准模型和规范希格斯统一和扭曲的额外维度的模型中的mu -> e伽马。在这两类模型中,过程都与目前的实验界限相容,但可以通过未来的实验检测到,这要归功于味对称G_f的存在,它约束了相关耦合的形式。对称性G_f被选择为有限的、离散的和非阿贝尔的,这也有助于预测特殊的轻子混合模式。

英文摘要:

We discuss charged lepton flavour violating processes such as mu -> e gamma in supersymmetric extensions of the Standard Model and in models with gauge-Higgs unification and a warped extra dimension. In both classes of models the processes turn out to be compatible with present experimental bounds, but can be detected by future experiments, thanks to the presence of a flavour symmetry G_f which constrains the form of the relevant couplings. The symmetry G_f is chosen to be finite, discrete and non-abelian and also helps to predict the peculiar lepton mixing pattern.

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