The $B \to Kπ$ Puzzle and Supersymmetric Models

Details The $B \to Kπ$ Puzzle and Supersymmetric Models The $B \to Kπ$ Puzzle and Supersymmetric Models

2005-09-22

arxiv.org/abs/hep-ph/0509233v1

Phys.Lett.B633:748-754,2006

Physics

High Energy Physics

High Energy Physics - Phenomenology

14 pages, 3 figures

Scientific paper

10.1016/j.physletb.2006.01.003

In the light of new experimental results on $B \to K\pi$ decays, we study the decay processes $B \to K \pi$ in the framework of both R-parity conserving (SUGRA) and R-parity violating supersymmetric models. We find that any possible deviations from the Standard Model indicated by the current data for the branching ratios and the direct CP asymmetries of $B \to K\pi$ can be explained in both R-parity conserving SUGRA and R-parity violating SUSY models. However, there is a difference between the predictions of both models to the time-dependent CP asymmetry observable $S_{K_{_S} \pi^0}$ whose current experimental results include large uncertainties. We demonstrate that this difference can be useful for testing both models with more accurate data for $S_{K_{S} \pi^0}$ and $A_{CP}^{+-}$ in the near future.

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