Implications of CP Asymmetry Limits for $B \to K π$ and $B \to π π$

Details Implications of CP Asymmetry Limits for $B \to K π$ and $B \to π π$ Implications of CP Asymmetry Limits for $B \to K π$ and $B \to π π$

2001-09-25

arxiv.org/abs/hep-ph/0109238v2

Phys.Rev. D65 (2002) 013004; Erratum-ibid. D65 (2002) 079901

Physics

High Energy Physics

High Energy Physics - Phenomenology

16 pages, LaTeX, 3 figures, revised version to be published in Phys. Rev. D. References added and updated

Scientific paper

10.1103/PhysRevD.65.013004

Recent experimental limits for the direct CP asymmetries in $B^0 \to K^+ \pi^-$, $B^+ \to K^+ \pi^0$, $B^+ \to K^0 \pi^+$, and $B^0 \to \pi^+ \pi^-$, and for the indirect CP asymmetry in $B^0 \to \pi^+ \pi^-$, are combined with information on CP-averaged branching ratios to shed light on weak and strong phases. At present such bounds favor $\gamma \ge 60^\circ$ at the $1 \sigma$ level. The prospects for further improvements are discussed.

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