B_s to K^(*)0 \bar K^(*)0 decays: the golden channels for new physics searches

Details B_s to K^(*)0 \bar K^(*)0 decays: the golden channels for new physics searches B_s to K^(*)0 \bar K^(*)0 decays: the golden channels for new physics searches

2007-03-13

arxiv.org/abs/hep-ph/0703137v2

Phys.Rev.Lett.100:031802,2008

Physics

High Energy Physics

High Energy Physics - Phenomenology

4 pages, 1 figure. v2: Corrected dependence on CKM angles, expanded discussion of multiple polarizations, conclusions strength

Scientific paper

10.1103/PhysRevLett.100.031802

We point out that time-dependent CP asymmetries in B_s to K^{*0} \bar K^{*0} decays probe the presence of new physics in b to s transitions with an unprecedented theoretical accuracy. We show that, contrary to the case of B_d to phi K_S, it is possible to obtain a model-independent prediction for the coefficient S(B_s to K^{*0} \bar K^{*0}) in the Standard Model. We give an estimate of the experimental precision achievable with the next generation of B physics experiments. We also discuss how this approach can be extended to the case of B_s to \bar K^{*0} K^0, B_s to K^{*0} \bar K^0 and B_s to K^0 \bar K^0 decays and the different experimental challenges for these channels.

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