Measurements of B decays to two kaons
Abe, K.; Adachi, I.; Aihara, H.; Asano, Y.; Aulchenko, V.; Aushev, T.; Bakich, A.M.; Balagura, V.; Banerjee, S.; Barberio, E.; Barbero, M.; Bay, A.; Bedny, I.; Bitenc, U.; Bizjak, I.; Blyth, S.; Bondar, A.; Bozek, A.; Bračko, M.; Brodzicka, J.; Browder, T.E.; Chang, P.; Chao, Y.; Chen, A.; Chen, K.-F.; Chen, W.T.; Cheon, B.G.; Chistov, R.; Choi, S.-K.; Choi, Y.; Chuvikov, A.; Cole, S.; Dalseno, J.; Danilov, M.; Dash, M.; Dong, L.Y.; Dragic, J.; Drutskoy, A.; Eidelman, S.; Enari, Y.; Fratina, S.; Gabyshev, N.; Gershon, T.; Go, A.; Gokhroo, G.; Golob, B.; Goriek, A.; Haba, J.; Hara, T.; Hastings, N.C.; Hayasaka, K.; Hayashii, H.; Hazumi, M.; Hinz, L.; Hokuue, T.; Hoshi, Y.; Hou, S.; Hou, W.-S.; Hsiung, Y.B.; Iijima, T.; Ikado, K.; Imoto, A.; Ishikawa, A.; Ishino, H.; Itoh, R.; Iwasaki, M.; Iwasaki, Y.; Kang, J.H.; Kang, J.S.; Kataoka, S.U.; Katayama, N.; Kawai, H.; Kawasaki, T.; Khan, H.R.; Kichimi, H.; Kim, J.H.; Kim, S.K.; Kim, S.M.; Kinoshita, K.; Korpar, S.; Kriaan, P.; Krokovny, P.; Kuo, C.C.; Kuzmin, A.; Kwon, Y.-J.; Lee, S.E.; Lesiak, T.; Li, J.; Lin, S.-W.; Liventsev, D.; Majumder, G.; Mandl, F.; Matsumoto, T.; Matyja, A.; Mitaroff, W.; Miyake, H.; Miyata, H.; Miyazaki, Y.; Mizuk, R.
2005
Abstract
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.
Details
Title
Measurements of B decays to two kaons
Author(s)
Abe, K. ; Adachi, I. ; Aihara, H. ; Asano, Y. ; Aulchenko, V. ; Aushev, T. ; Bakich, A.M. ; Balagura, V. ; Banerjee, S. ; Barberio, E. ; Barbero, M. ; Bay, A. ; Bedny, I. ; Bitenc, U. ; Bizjak, I. ; Blyth, S. ; Bondar, A. ; Bozek, A. ; Bračko, M. ; Brodzicka, J. ; Browder, T.E. ; Chang, P. ; Chao, Y. ; Chen, A. ; Chen, K.-F. ; Chen, W.T. ; Cheon, B.G. ; Chistov, R. ; Choi, S.-K. ; Choi, Y. ; Chuvikov, A. ; Cole, S. ; Dalseno, J. ; Danilov, M. ; Dash, M. ; Dong, L.Y. ; Dragic, J. ; Drutskoy, A. ; Eidelman, S. ; Enari, Y. ; Fratina, S. ; Gabyshev, N. ; Gershon, T. ; Go, A. ; Gokhroo, G. ; Golob, B. ; Goriek, A. ; Haba, J. ; Hara, T. ; Hastings, N.C. ; Hayasaka, K. ; Hayashii, H. ; Hazumi, M. ; Hinz, L. ; Hokuue, T. ; Hoshi, Y. ; Hou, S. ; Hou, W.-S. ; Hsiung, Y.B. ; Iijima, T. ; Ikado, K. ; Imoto, A. ; Ishikawa, A. ; Ishino, H. ; Itoh, R. ; Iwasaki, M. ; Iwasaki, Y. ; Kang, J.H. ; Kang, J.S. ; Kataoka, S.U. ; Katayama, N. ; Kawai, H. ; Kawasaki, T. ; Khan, H.R. ; Kichimi, H. ; Kim, J.H. ; Kim, S.K. ; Kim, S.M. ; Kinoshita, K. ; Korpar, S. ; Kriaan, P. ; Krokovny, P. ; Kuo, C.C. ; Kuzmin, A. ; Kwon, Y.-J. ; Lee, S.E. ; Lesiak, T. ; Li, J. ; Lin, S.-W. ; Liventsev, D. ; Majumder, G. ; Mandl, F. ; Matsumoto, T. ; Matyja, A. ; Mitaroff, W. ; Miyake, H. ; Miyata, H. ; Miyazaki, Y. ; Mizuk, R.
Published in
Physical Review Letters
Volume
95
Issue
23
Pages
1-5
Date
2005
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Laboratories
LPHE
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Scientific production and competences > SB - School of Basic Sciences > IPHYS - Institute of Physics > LPHE - High Energy Physics Laboratory
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Peer-reviewed publications
Work produced at EPFL
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Record creation date
2010-11-05