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arXiv · hep-ph/9809282

Prospects for Direct CP Violaton in Exclusive and Inclusive Charmless B decays

Xiao-Gang He·Wei-Shu Hou·Kwei-Chou Yang
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Abstract

Within the Standard Model, CP rate asymmetries for $B\to K^-π^{+,0}$ could reach 10%. With strong final state phases, they could go up to 20--30%, even for $\bar K^0π^-$ mode which would have opposite sign. We can account for $K^-π^{+}$, $\bar K^0π^-$ and $ϕK$ rate data with new physics enhanced color dipole coupling and destructive interference. Asymmetries could reach 40--60% for $Kπ$ and $ϕK$ modes and are all of the same sign. We are unable to account for $K^-π^0$ rate. Our inclusive study supports our exclusive results.

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Xiao-Gang He, Wei-Shu Hou, Kwei-Chou Yang. 1998-11-14. Prospects for Direct CP Violaton in Exclusive and Inclusive Charmless B decays. https://doi.org/10.1103/physrevlett.81.5738

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