Measurement of the charged multiplicity of bottom and light quark events in e+e- annihilation at √s = 58 GeV

K. Okabe, Y. Yamada, D. Tatsumi, K. Abe, K. Amako, Y. Arai, Y. Asano, M. Chiba, Y. Chiba, M. Daigo, M. Fukawa, Y. Fukushima, J. Haba, H. Hamasaki, Y. Hemmi, M. Higuchi, T. Hirose, Y. Homma, N. Ishihara, Y. IwataJ. Kanzaki, R. Kikuchi, T. Kondo, T. T. Korhonen, H. Kurashige, E. K. Matsuda, T. Matsui, K. Miyake, S. Mori, Y. Nagashima, Y. Nakagawa, T. Nakamura, I. Nakano, S. Odaka, K. Ogawa, T. Ohama, T. Ohsugi, H. Ohyama, A. Okamoto, A. Ono, J. Pennanen, H. Sakamoto, M. Sakuda, M. Sato, N. Sato, M. Shioden, J. Shirai, T. Sumiyoshi, Y. Takada, F. Takasaki, M. Takita, N. Tamura, K. Tobimatsu, T. Tsuboyama, S. Uehara, Y. Unno, T. Watanabe, Y. Watase, F. Yabuki, T. Yamagata, Y. Yonezawa, H. Yoshida, K. Yusa

研究成果: Article査読

11 被引用数 (Scopus)

抄録

The charged-particle multiplicity is measured for b-quark and light-quark (u, d, s) events in e+e- annihilation at √s = 58 GeV. Two independent methods, lepton tagging and decay-length tagging, are applied to enrich b-quark events. These methods provide event samples having different concentrations of b-quark events. The mean charged multiplicity is measured to be 19.38 ± 0.27 ± 0.84 for b-quark events, and 15.91 ± 0.04 ± 0.70 for light-quark events. The results are compared with predictions of phenomenological and theoretical models.

本文言語English
ページ(範囲)407-418
ページ数12
ジャーナルPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
423
3-4
DOI
出版ステータスPublished - 1998 3月 26
外部発表はい

ASJC Scopus subject areas

  • 核物理学および高エネルギー物理学

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