Search for direct CP violation in B→Kπ decays

Belle Collaboration

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15 Scopus citations


We search for direct CP violation in flavor specific B → Kπ decays by measuring the rate asymmetry between charge conjugate modes. The search is performed on a data sample of 11.1 × 106 BB events recorded on the Y(4S) resonance by the Belle experiment at KEKB. We measure 90% confidence intervals in the partial rate asymmetry ACP of -0.25<ACP(Kπ±)<0.37, -0.40<ACP(Kπ0)<0.36, and -0.53 <A CP (K0π)<0.82. By combining the Kπ± and Kπ0 final states, we conclude that -0.22 <ACP(K± + π0))<0.25 at the 90% confidence level.

Original languageEnglish (US)
Article number071101
JournalPhysical Review D
Issue number7
StatePublished - 2001

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics


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