Measurement of branching fractions for B → ηcK(*) decays

F. Fang, T. Hojo, K. Abe, K. Abe, T. Abe, I. Adachi, H. Aihara, M. Akatsu, Y. Asano, T. Aso, V. Aulchenko, A. M. Bakich, Y. Ban, E. Banas, A. Bay, P. K. Behera, I. Bizjak, A. Bondar, A. Bozek, M. BračkoJ. Brodzicka, T. E. Browder, B. C.K. Casey, P. Chang, Y. Chao, K. F. Chen, B. G. Cheon, R. Chistov, S. K. Choi, Y. Choi, Y. K. Choi, M. Danilov, A. Drutskoy, S. Eidelman, V. Eiges, Y. Enari, C. Fukunaga, N. Gabyshev, A. Garmash, T. Gershon, B. Golob, T. Hara, N. C. Hastings, H. Hayashii, M. Hazumi, E. M. Heenan, T. Higuchi, L. Hinz, T. Hokuue, Y. Hoshi, W. S. Hou, H. C. Huang, T. Igaki, Y. Igarashi, T. Iijima, K. Inami, A. Ishikawa, R. Itoh, H. Iwasaki, Y. Iwasaki, H. K. Jang, J. H. Kang, J. S. Kang, P. Kapusta, N. Katayama, H. Kawai, Y. Kawakami, T. Kawasaki, H. Kichimi, D. W. Kim, Heejong Kim, H. J. Kim, H. O. Kim, Hyunwoo Kim, S. K. Kim, K. Kinoshita, S. Kobayahi, S. Korpar, P. Križan, P. Krokovny, R. Kulasiri, Y. J. Kwon, J. S. Lange, G. Leder, S. H. Lee, J. Li, D. Liventsev, R. S. Lu, J. MacNaughton, F. Mandl, S. Matsumoto, T. Matsumoto, W. Mitaroff, K. Miyabayashi, H. Miyake, H. Miyata, G. R. Moloney, T. Mori

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Abstract

An overview is given on new measurements of B → ηcK branching fractions with the ηc meson reconstructed in the KS0K+π-, K-K+π0, K*0K-π+, and p̄p channels. These signals are large enough to be used to determine the mass and width of the ηc meson. Furthermore, the first observation of the related decay mode B0 → ηcK*0 is discussed. When K*0 → KS0π0, this decay mode is also a CP eigenstate.

Original languageEnglish
Article number071801
Pages (from-to)071801/1-071801/6
JournalPhysical review letters
Volume90
Issue number7
Publication statusPublished - 2003 Feb 21

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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    Fang, F., Hojo, T., Abe, K., Abe, K., Abe, T., Adachi, I., Aihara, H., Akatsu, M., Asano, Y., Aso, T., Aulchenko, V., Bakich, A. M., Ban, Y., Banas, E., Bay, A., Behera, P. K., Bizjak, I., Bondar, A., Bozek, A., ... Mori, T. (2003). Measurement of branching fractions for B → ηcK(*) decays. Physical review letters, 90(7), 071801/1-071801/6. [071801].