CP Violation in Fourth Generation Quark Decays

Details CP Violation in Fourth Generation Quark Decays CP Violation in Fourth Generation Quark Decays

2009-08-06

arxiv.org/abs/0908.0901v1

Phys.Rev.D80:076005,2009

Physics

High Energy Physics

High Energy Physics - Phenomenology

4 pages, 7 eps figures

Scientific paper

10.1103/PhysRevD.80.076005

We show that, if a fourth generation is discovered at the Tevatron or LHC, one could study CP violation in b' \to s decays. Asymmetries could reach 30% for b'\to sZ for m_{b'} \lesssim 350 GeV, while it could be greater than 50% for b'\to s\gamma and extend to higher m_{b'}. Branching ratios are 10^{-3}--10^{-5}, and CPV measurement requires tagging. Once measured, however, the CPV phase can be extracted with little theoretical uncertainty.

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