Measurement of the reactions e+e-→μ+μ- and e+e-→τ+τ- between {Mathematical expression} and 60.8 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, F. Suekane, S. Sugimoto, T. Sumiyoshi, Y. Suzuki, Y. Takada, F. Takasaki, A. Taketani, N. Tamura, R. Tanaka, N. Terunuma, K. Tobimatsu, T. Tsuboyama, A. Tsukamoto, S. Uehara, Y. Unno, M. Utsumi, M. Wakai, T. Watanabe, Y. Watase, Y. Yamada, T. Yamagata, T. Yamashita, Y. Yonezawa, H. Yoshida

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Abstract

The angular distributions of the reaction e+e-→μ+μ- and e+e+→τ+τ- have been measured between {Mathematical expression} and 60.8 GeV with the VENUS detector at TRISTAN. The average total cross section and the forward-backward charge asymmetry for μ-pair production are observed to be 28.3±1.4±0.8 pb and (-29.0-4.8+5.0±0.5)%, and those for τ-pair production are 27.6±1.7±1.0 pb and (-32.8-6.2+6.4±1.5)% at {Mathematical expression}. These values are consistent with the predictions of the standard model of electroweak interactions.

Original languageEnglish
Pages (from-to)13-21
Number of pages9
JournalZeitschrift für Physik C Particles and Fields
Volume48
Issue number1
DOIs
Publication statusPublished - 1990 Mar

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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    Abe, K., Amako, K., Arai, Y., Asano, Y., Chiba, M., Chiba, Y., Daigo, M., Emura, T., Endo, I., Fukawa, M., Fukui, T., Fukushima, Y., Haba, J., Haidt, D., Hayashibara, I., Hemmi, Y., Higuchi, M., Hirose, T., Hojyo, Y., ... Yoshida, H. (1990). Measurement of the reactions e+e-→μ+μ- and e+e-→τ+τ- between {Mathematical expression} and 60.8 GeV. Zeitschrift für Physik C Particles and Fields, 48(1), 13-21. https://doi.org/10.1007/BF01565601