Measurement of γ 5S decays to B0 and B+ mesons

A. Drutskoy, I. Adachi, H. Aihara, V. Aulchenko, T. Aushev, A. M. Bakich, V. Balagura, V. Bhardwaj, M. Bischofberger, A. Bondar, A. Bozek, M. Bračko, T. E. Browder, Y. Chao, A. Chen, P. Chen, B. G. Cheon, S. K. Choi, Y. Choi, J. DalsenoM. Danilov, Z. Doležal, W. Dungel, S. Eidelman, N. Gabyshev, B. Golob, H. Ha, J. Haba, H. Hayashii, Y. Horii, Y. Hoshi, W. S. Hou, Y. B. Hsiung, H. J. Hyun, T. Iijima, K. Inami, R. Itoh, M. Iwabuchi, Y. Iwasaki, T. Julius, D. H. Kah, J. H. Kang, N. Katayama, H. Kichimi, C. Kiesling, H. J. Kim, H. O. Kim, M. J. Kim, K. Kinoshita, B. R. Ko, S. Korpar, P. Krokovny, T. Kumita, A. Kuzmin, Y. J. Kwon, S. H. Kyeong, J. S. Lange, S. H. Lee, J. Li, C. Liu, D. Liventsev, R. Louvot, A. Matyja, S. McOnie, K. Miyabayashi, H. Miyata, Y. Miyazaki, G. B. Mohanty, T. Mori, R. Mussa, Y. Nagasaka, M. Nakao, Z. Natkaniec, S. Nishida, O. Nitoh, T. Ohshima, S. Okuno, S. L. Olsen, G. Pakhlova, H. Park, H. K. Park, R. Pestotnik, M. Petrič, L. E. Piilonen, A. Poluektov, S. Ryu, Y. Sakai, O. Schneider, C. Schwanda, A. J. Schwartz, K. Senyo, M. E. Sevior, M. Shapkin, C. P. Shen, J. G. Shiu, B. Shwartz, F. Simon, P. Smerkol, S. Stanič, M. Starič, K. Sumisawa, T. Sumiyoshi, Y. Teramoto, K. Trabelsi, T. Tsuboyama, Y. Unno, S. Uno, Y. Usov, G. Varner, K. E. Varvell, K. Vervink, M. Z. Wang, P. Wang, Y. Watanabe, J. Wicht, E. Won, B. D. Yabsley, Y. Yamashita, Z. P. Zhang, V. Zhulanov, T. Zivko, A. Zupanc

研究成果: 雜誌貢獻期刊論文同行評審

34 引文 斯高帕斯(Scopus)

摘要

Decays of the Υ(5S) resonance to channels with B+ and B0 mesons are studied using a 23.6fb-1 data sample collected with the Belle detector at the KEKB asymmetric-energy e+e- collider. Fully reconstructed B+→J/ψK+, B0→J/ψK*0, B+→D̄+, and B0→D-π+ decays are used to obtain the charged and neutral B production rates per bb̄ event, f(B +)=(72.1-3.8+3.9±5.0)% and f(B0)=(77.0-5.6+5.8±6.1)%. Assuming equal rates to B+ and B0 mesons in all channels produced at the Υ(5S) energy, we measure the fractions for transitions to two-body and three-body channels with B meson pairs, f(BB̄)=(5.5-0.9+1.0±0.4)%, f(BB̄*+B*B̄)=(13. 7±1.3±1.1)%, f(B*B̄ *)=(37.5-1.9+2.1±3.0)%, f(BB̄π)=(0.0±1. 2±0.3)%, f(BB̄*π+B *B̄π)=(7.3-2.1+2.3±0.8)%, and f(B *B̄*π)=(1.0-1.3+1. 4±0.4)%. The latter three fractions are obtained assuming isospin conservation.

原文???core.languages.en_GB???
文章編號112003
期刊Physical Review D - Particles, Fields, Gravitation and Cosmology
81
發行號11
DOIs
出版狀態已出版 - 22 6月 2010

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