Measurements of B decays to two kaons
- Abe, K
- Adachi, I
- Aihara, H
- Asano, Y
- Aulchenko, V
- Aushev, T
- Bakich, AM
- Balagura, V
- Banerjee, S
- Barberio, E
- Barbero, M
- Bay, A
- Bedny, I
- Bitenc, U
- Bizjak, I
- Blyth, S
- Bondar, A
- Bozek, A
- Bracko, M
- Brodzicka, J
- Browder, TE
- Chang, P
- Chao, Y
- Chen, A
- Chen, KF
- Chen, WT
- Cheon, BG
- Chistov, R
- Choi, SK
- Choi, Y
- Chuvikov, A
- Cole, S
- Dalseno, J
- Danilov, M
- Dash, M
- Dong, LY
- Dragic, J
- Drutskoy, A
- Eidelman, S
- Enari, Y
- Fratina, S
- Gabyshev, N
- Gershon, T
- Go, A
- Gokhroo, G
- Golob, B
- Gorisek, A
- Haba, J
- Hara, T
- Hastings, NC
- Hayasaka, K
- H
DOIAbstract
We report measurements of B meson decays to two kaons using 253 fb(-1) of data collected with the Belle detector at the KEKB energy-asymmetric e(+)e(-) collider. We find evidence for signals in B+->(K) over bar K-0(+) and B-0-> K-0(K) over bar (0) with significances of 3.0 sigma and 3.5 sigma, respectively. (Charge-conjugate modes are included.) The corresponding branching fractions are measured to be B(B+->(K) over bar K-0(+))=(1.0 +/- 0.4 +/- 0.1)x10(-6) and B(B-0-> K-0(K) over bar (0))=(0.8 +/- 0.3 +/- 0.1)x10(-6). These decay modes are examples of hadronic b -> d transitions. No signal is observed in the decay B-0-> K+K-, and we set an upper limit of 3.7x10(-7) at 90% confidence level.Physics, MultidisciplinarySCI(E)0A...
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