Study of multihadron events with isolated leptons in e+e- annihilation at 50≤ sles;55 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, K. Maehata, T. Matsui, M. Minami, K. Miyake, S. Mori, Y. Nagashima, T. Nakamura, I. Nakano, K. Ogawa, T. Ohama, T. Ohsugi, A. Ono, H. Osabe, 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, K. Tobimatsu, T. Tsuboyama, A. Tsukamoto, S. Uehara, Y. Unno, M. Wakai, M. Wake, T. Watanabe, Y. Watase, Y. Yamada, T. Yamagata, T. Yamashita, H. Yoshida

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Abstract

We have studied inclusive lepton production in e+e- annihilations into multihadrons in the energy range between √s=50 and 55 GeV using the VENUS detector at TRISTAN, KEK. Though MARK-J and JADE groups at PETRA found an excess of isolated muon events at √s≥46.3 GeV, we have not observed such an anomaly in muon nor in electron production. The observed rates of isolated leptons are consistent with the production and decay of five known quarks.

Original languageEnglish
Pages (from-to)355-360
Number of pages6
JournalPhysics Letters B
Volume207
Issue number3
DOIs
Publication statusPublished - 1988 Jun 23

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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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. (1988). Study of multihadron events with isolated leptons in e+e- annihilation at 50≤ sles;55 GeV. Physics Letters B, 207(3), 355-360. https://doi.org/10.1016/0370-2693(88)90590-4