Charge asymmetry of hadron jets and limits on the compositeness scales in the e+e-→qq̄ reaction at 〈√s〉 = 57.6 GeV

K. Abe, K. Amako, Y. Arai, Y. Asano, M. Chiba, Y. Chiba, M. Daigo, T. Emura, I. Endo, M. Fukawa, T. Fukui, Y. Fukushima, J. Haba, D. Haidt, I. Hayashibara, Y. Hemmi, M. Higuchi, T. Hirose, Y. Hojyo, Y. HommaY. Hoshi, Y. Ikegami, N. Ishihara, T. Kamitani, N. Kanematsu, J. Kanzaki, R. Kikuchi, T. Kondo, T. Koseki, K. Kubo, H. Kurashige, T. Matsui, M. Minami, K. Miyake, S. Mori, Y. Nagashima, T. Nakamura, I. Nakano, Y. Narita, S. Odaka, K. Ogawa, T. Ohama, T. Ohsugi, A. Okamoto, A. Ono, H. Osabe, T. Oyama, H. Saito, H. Sakae, H. Sakamoto, S. Sakamoto, M. Sakano, M. Sakuda, N. Sasao, M. Sato, M. Shioden, J. Shirai, S. Shirakata, F. Suekane, S. Sugimoto, T. Sumiyoshi, S. Suzuki, Y. Suzuki, Y. Takada, F. Takasaki, A. Taketani, M. Takita, N. Tamura, R. Tanaka, N. Terunuma, K. Tobimatsu, T. Tsuboyama, A. Tsukamoto, S. Uehara, Y. Unno, M. Utsumi, M. Wakai, T. Watanabe, Y. Watase, F. Yabuki, Y. Yamada, T. Yamagata, T. Yamashita, Y. Yonezawa, H. Yoshida

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13 Citations (Scopus)


A charge asymmetry has been measured in hadron jets from e+e- annihilation at energies between 52 and 61.4 geV (〈√s〉=57.6 GeV). The measured asymmetry is A=11.4%±2.2%±2.1% and is consistent with the prediction of the standard model of the electroweak theory. By using the differential cross section, lower limits of the compositeness scale in eeqq contact interactions have been determined to be typically a few TeV at 95% CL.

Original languageEnglish
Pages (from-to)425-430
Number of pages6
JournalPhysics Letters B
Issue number3
Publication statusPublished - Dec 7 1989
Externally publishedYes

ASJC Scopus subject areas

  • Nuclear and High Energy Physics


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