Flavour physics with a 4th generation
Abstract
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(Bs -> mu+ mu-), Br(K -> pi nu nubar) and the indirect CP violation S(psi phi) in the Bs system. We will further stress the importance of epsilon'/epsilon as a possible constraint once reliable lattice results for B6 and B8 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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