Study of time-dependent CP-violating asymmetries in b→sq̄q decays

K. Abe, T. Abe, Adachi, H. Aihara, K. Akai, M. Akatsu, M. Akemoto, Y. Asano, T. Aso, V. Aulchenko, T. Aushev, A. M. Bakich, Y. Ban, A. Bay, I. Bizjak, A. Bondar, A. Bozek, M. Bračko, J. Brodzicka, T. E. BrowderB. C.K. Casey, P. Chang, Y. Chao, K. F. Chen, B. G. Cheon, R. Chistov, S. K. Choi, Y. Choi, Y. K. Choi, A. Drutskoy, S. Eidelman, V. Eiges, Y. Enari, C. Fukunaga, K. Furukawa, N. Gabyshev, A. Garmash, T. Gershon, B. Golob, A. Gordon, J. Haba, K. Hara, H. Hayashii, M. Hazumi, T. Higuchi, T. Hojo, Y. Hoshi, W. S. Hou, Y. B. Hsiung, H. C. Huang, T. Igaki, Y. Igarashi, T. Iijima, H. Ikeda, K. Inami, A. Ishikawa, R. Itoh, H. Iwasaki, Y. Iwasaki, H. K. Jang, J. Kaneko, J. H. Kang, J. S. Kang, N. Katayama, H. Kawai, H. Kawai, Y. Kawakami, T. Kawasaki, H. Kichimi, M. Kikuchi, E. Kikutani, D. W. Kim, H. J. Kim, H. O. Kim, Hyunwoo Kim, J. H. Kim, S. Kobayashi, H. Koiso, S. Korpar, P. Križan, P. Krokovny, R. Kulasiri, Y. J. Kwon, J. S. Lange, G. Leder, S. H. Lee, S. W. Lin, D. Liventsev, J. MacNaughton, F. Mandl, D. Marlow, T. Matsuishi, S. Matsumoto, T. Matsumoto, S. Michizono, W. Mitaroff, K. Miyabayashi, Y. Miyabayashi, H. Miyake

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Abstract

We present a measurement of CP-violation parameters in the b→sq̄q penguin transitions (q = s,u,d) based on a 78 fb-1 data sample collected at the Y(4S) resonance with the Belle detector at the KEKB energyasymmetric e+e- collider. One neutral B meson is reconstructed in the φKS0, K+K -KS0, or η′ KS0 decay channel, and the flavor of the accompanying B meson is identified from its decay products. CP violation parameters for each of the three modes are obtained from the asymmetries in the distributions of the proper-time intervals between the two B decays.

Original languageEnglish (US)
Article number031102
JournalPhysical Review D
Volume67
Issue number3
DOIs
StatePublished - 2003

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

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