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arXiv 1404.4281hep-ph
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规范-希格斯统一中μ到3e和μ到e的转换

mu to 3e and mu to e Conversion in Gauge-Higgs Unification

Yuki Adachi, Nobuaki Kurahashi, Nobuhito Maru

摘要:

在五维规范-Higgs统一方案下,研究了树能级中性KK规范玻色子交换引起的原子核μ到3e和μ到e的两个主要轻子味破坏过程.味破坏的关键点是体质量和膜质量不能同时对角化。我们估计了每个过程的分支比,并从目前的实验数据中得到了紧化标度在弱标度附近的下界。我们讨论了为什么轻子扇区的大混合似乎给出了大的轻子味破坏过程,但最终结果并不那么严重的原因。

英文摘要:

The two dominant processes of lepton flavor violation, mu to 3e and mu to e conversion in atomic nuclei caused by neutral KK gauge boson exchanges at tree level, are studied in the context of five dimensional gauge-Higgs unification scenario. The key point of the flavor violation is a fact that the bulk masses and the brane ones cannot be simultaneously diagonalized. We estimate the branching ratio of each processes and obtain the lower bound of compactification scale around weak scale from the current experimental data. We discuss the reasons why the final result is not so severe although the large mixing in the lepton sector seems to give large lepton flavor violation processes.

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