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arXiv 1204.4971hep-phhep-th
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规范-希格斯统一中的味混合

Flavor Mixing in the Gauge-Higgs Unification

Y. Adachi, N. Kurahashi, C. S. Lim, N. Maru, K. Tanabe

摘要:

规范-希格斯统一是一个迷人的方案,解决了没有超对称的层次问题。在这种情况下,标准模型(SM)的希格斯偶线被确定为在更高维度的规范场的额外分量和它的质量变得有限和稳定的量子校正下,由于更高的维度规范对称性。另一方面,Yukawa耦合是由规范耦合提供的,这似乎意味着味道混合和CP破坏不会出现在它的立场。在这次演讲中,我们讨论了味道混合起源于同时不可对角化的体质量矩阵和膜质量矩阵。然后,将该机制应用于树级Kaluza-Klein(KK)规范玻色子交换的各种变味中性流(FCNC)过程,得到了紧化尺度的约束条件.

英文摘要:

Gauge-Higgs unification is the fascinating scenario solving the hierarchy problem without supersymmetry. In this scenario, the Standard Model (SM) Higgs doublet is identified with extra component of the gauge field in higher dimensions and its mass becomes finite and stable under quantum corrections due to the higher dimensional gauge symmetry. On the other hand, Yukawa coupling is provided by the gauge coupling, which seems to mean that the flavor mixing and CP violation do not arise at it stands. In this talk, we discuss that the flavor mixing is originated from simultaneously non-diagonalizable bulk and brane mass matrices. Then, this mechanism is applied to various flavor changing neutral current (FCNC) processes via Kaluza-Klein (KK) gauge boson exchange at tree level and constraints for compactification scale are obtained.

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