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Improved measurement of the partial-rateCPasymmetry inB+→K0π+andB−→K0π−decays
- Source :
- Physical Review D. 68
- Publication Year :
- 2003
- Publisher :
- American Physical Society (APS), 2003.
-
Abstract
- We report an improved measurement of the partial-rate CP asymmetry in B±→K0π± decays. The analysis is based on a data sample of 85×106 BB pairs collected at the Y(4S) resonance with the Belle detector at the KEKB e +e- storage ring. We measure ACP(K 0π±) = 0.07-0.08 +0.09 +0.03 +0.01, where the first and second errors are statistical and systematic, respectively; the corresponding 90% confidence-level interval is -0.10
Details
- ISSN :
- 10894918 and 05562821
- Volume :
- 68
- Database :
- OpenAIRE
- Journal :
- Physical Review D
- Accession number :
- edsair.doi...........63c245ff30ada0bdf6d5d03449773f93
- Full Text :
- https://doi.org/10.1103/physrevd.68.011103