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research article
Improved measurement of the partial-rate CP asymmetry in B +→K0π+ and B -→K̄0π- decays
2003
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 BB̄ 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 <ACP(K0π±) <0.22. © 2003 The American Physical Society.
Type
research article
Scopus ID
2-s2.0-0041886728
Authors
Unno, Y.
•
Suzuki, K.
•
Abe, K.
•
Abe, T.
•
Adachi, I.
•
Aihara, H.
•
Akatsu, M.
•
Asano, Y.
•
Aso, T.
•
Aulchenko, V.
Publication date
2003
Published in
Volume
68
Issue
1
Article Number
011103
Peer reviewed
REVIEWED
EPFL units
Available on Infoscience
November 5, 2010
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