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research article
Measurements of B decays to two kaons
We report measurements of B meson decays to two kaons using 253fb-1 of data collected with the Belle detector at the KEKB energy-asymmetric e+e- collider. We find evidence for signals in B+→K̄0K+ and B0→K0K̄0 with significances of 3.0σ and 3.5σ, respectively. (Charge-conjugate modes are included.) The corresponding branching fractions are measured to be B(B+→K̄0K+)=(1.0±0.4±0.1)×10-6 and B(B0→K0K̄0)=(0.8±0.3±0.1)×10-6. These decay modes are examples of hadronic b→d transitions. No signal is observed in the decay B0→K+K-, and we set an upper limit of 3.7×10-7 at 90% confidence level. © 2005 The American Physical Society.
Type
research article
Web of Science ID
WOS:000233724000021
Scopus ID
2-s2.0-28844462732
Authors
Abe, K.
•
Adachi, I.
•
Aihara, H.
•
Asano, Y.
•
Aulchenko, V.
•
Aushev, T.
•
Bakich, A.M.
•
Balagura, V.
•
Banerjee, S.
•
Barberio, E.
Publication date
2005
Published in
Volume
95
Issue
23
Start page
1
End page
5
Peer reviewed
REVIEWED
EPFL units
Available on Infoscience
November 5, 2010
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