Rates and Asymmetries in $B \to K π$ Decays

Details Rates and Asymmetries in $B \to K π$ Decays Rates and Asymmetries in $B \to K π$ Decays

2003-07-07

arxiv.org/abs/hep-ph/0307095v3

Phys.Lett.B572:43-49,2003

Physics

High Energy Physics

High Energy Physics - Phenomenology

11 pages, LaTeX, 3 figures, a reference added, to be published in Phys. Lett. B

Scientific paper

10.1016/j.physletb.2003.07.088

We discuss a potential discrepancy in an approximate relation among $B \to K \pi$ rates which, with increased statistical significance, would imply new physics in $\Delta I=1$ transitions. An approximate relation between CP-violating rate differences in $B^0/\bar{B}^0 \to K^{\pm}\pi^{\mp}$ and $B^{\pm} \to K^{\pm}\pi^0$ is used to combine these rate differences to reduce upper limits on the two CP asymmetries. These rates and asymmetries are used to update bounds on the CKM phase $\gamma$.

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