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arXiv 1012.1093hep-ph
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第四代风味物理学

Flavour physics with a 4th generation

Tillmann Heidsieck

摘要:

我们提出了一个概述,最近的工作中存在的连续第四代风味物理。我们将很快讨论对新参数的限制,并在后面给出对B_s系统中Br(B_s -> mu+ mu-),Br(K -> pi nu nubar)和间接CP破坏S(psi phi)等观测量的预言。我们将进一步强调一旦B_6和B_8的可靠的晶格结果成为可能的约束ε ′/ε ′的重要性。轻子味破坏也简要讨论了在升级的味工厂,以及即将进行的实验μ-> e γ和μ-e转换的原子核中的τ物理的前景。

英文摘要:

We present an overview of recent work on flavour physics in the presence of a sequential fourth generation. We will discuss shortly the constraints on the new parameters and in the reminder present predictions for observables like Br(B_s -> mu+ mu-), Br(K -> pi nu nubar) and the indirect CP violation S(psi phi) in the B_s system. We will further stress the importance of epsilon'/epsilon as a possible constraint once reliable lattice results for B_6 and B_8 become available. Lepton flavour violation is also briefly discussed in view of prospects for tau physics at an upgraded flavour factory as well as upcoming experiments for mu -> e gamma and mu-e conversion in nuclei.

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