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research article

Measurements of B decays to two kaons

Abe, K.
•
Adachi, I.
•
Aihara, H.
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2005
Physical Review Letters

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.

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Type
research article
DOI
10.1103/PhysRevLett.95.231802
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.
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Date Issued

2005

Published in
Physical Review Letters
Volume

95

Issue

23

Start page

1

End page

5

Editorial or Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
LPHE  
Available on Infoscience
November 5, 2010
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/56938
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