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
Author(s)
Abe, K.
Adachi, I.
Aihara, H.
Asano, Y.
Aulchenko, V.
Aushev, T.
Bakich, A.M.
Balagura, V.
Banerjee, S.
Barberio, E.
Date Issued
2005
Published in
Volume
95
Issue
23
Start page
1
End page
5
Editorial or Peer reviewed
REVIEWED
Written at
EPFL
EPFL units
Available on Infoscience
November 5, 2010
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