Study of the e+e- → μ+μ-γ reaction at center-of-mass energies between 54 and 64 GeV

Y. Yonezawa, K. Abe, K. Amako, Y. Arai, Y. Asano, M. Chiba, Y. China, M. Daigo, M. Fukawa, T. Fukui, Y. Fukushima, J. Haba, Y. Hemmi, M. Higuchi, F. Hinode, T. Hirose, Y. Hojyo, Y. Homma, Y. Hoshi, N. IshiharaT. Kamitani, N. Kanematsu, N. Kanda, J. Kanzaki, R. Kikuchi, T. Kondo, T. T. Korhonen, T. Kosemi, 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, T. Oyama, H. Sakamoto, M. Sakuda, N. Sasao, M. Sato, H. Shibuya, M. Shioden, J. Shirai, M. Shirakata, S. Sugimoto, T. Sumiyoshi, A. Suzuki, Y. Takada, H. Takaki, F. Takasaki, A. Taketani, M. Takita, N. Tamura, N. Terunuma, K. Tobimatsu, T. Tsuboyama, S. Uehara, Y. Unno, M. Utsumi, T. Watanabe, Y. Watase, F. Yabuki, Y. Yamada, H. Yoshida

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Abstract

The cross section and forward-backward muon charge asymmetry for the e+e-→μ+μ-γ reaction were measured to be σ=2.82±0.35 pb and A=-0.34±0.10 with the VENUS detector at TRISTAN at 〈√s〉=59.2GeV for an integrated luminosity of 53.5 pb-1. The measured cross section agrees with the theoretical prediction. The asymmetry result is consistent with the electroweak prediction but not with the QED prediction at the level of 2σ.

Original languageEnglish
Pages (from-to)212-218
Number of pages7
JournalPhysics Letters B
Volume264
Issue number1-2
DOIs
Publication statusPublished - Jul 25 1991
Externally publishedYes

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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    Yonezawa, Y., Abe, K., Amako, K., Arai, Y., Asano, Y., Chiba, M., China, Y., Daigo, M., Fukawa, M., Fukui, T., Fukushima, Y., Haba, J., Hemmi, Y., Higuchi, M., Hinode, F., Hirose, T., Hojyo, Y., Homma, Y., Hoshi, Y., ... Yoshida, H. (1991). Study of the e+e- → μ+μ-γ reaction at center-of-mass energies between 54 and 64 GeV. Physics Letters B, 264(1-2), 212-218. https://doi.org/10.1016/0370-2693(91)90730-E