Measurement of branching fractions for B → ππ, Kπ, and KK Decays

Belle Collaboration

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We report measurements of the branching fractions for B0→π+π, K+π, K+K, and K0π0 and B+→π+π0, K+π0, K0π+, and K+K¯ 0, based on 10.4 fb−1 of data collected on the ±(4S) resonance with the Belle detector. We find B(B0→π+π) = (0.56-0.20-0.05+0.23+0.04)×10−5, B(B0→K+π-) = (1.93-0.32-0.06+0.34+0.15)×10−5, B(B+→K+π0) = (1.63-0.33-0.18+0.35+0.16)×10−5, B(B+→K0π+) = (1.37-0.48-0.18+0.57+0.19)×10−5, and B(B0→K0π0) = (1.60-0.59-0.27+0.72+0.25)×10−5. We also set upper limits on the branching fractions for B+→π+π0, B0→K+K-, and B+→K+K¯0.

Original languageEnglish (US)
JournalPhysical review letters
Issue number10
StatePublished - Aug 21 2001

All Science Journal Classification (ASJC) codes

  • General Physics and Astronomy


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