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

Michael Gronau·Jonathan L. Rosner
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Abstract

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

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Michael Gronau, Jonathan L. Rosner. 2001-10-15. Implications of CP Asymmetry Limits for $B \to K π$ and $B \to ππ$. https://doi.org/10.1103/physrevd.65.013004%2010.1103%2Fphysrevd.65.079901

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