Forward-backward charge asymmetry of quark pairs produced at the KEK TRISTAN e+e- collider

D. Stuart, R. E. Breedon, L. M. Chinitz, Winston Ko, R. L. Lander, J. Rowe, J. R. Smith, P. Kirk, C. P. Cheng, W. X. Gao, W. G. Yan, M. H. Ye, A. Abashian, K. Gotow, D. Haim, M. E. Mattson, N. Morgan, L. Piilonen, K. L. Sterner, S. LusinC. Rosenfeld, A. T M Wang, S. Wilson, L. Y. Zheng, C. A. Fry, R. Tanaka, K. Abe, Y. Fujii, Y. Kurihara, F. Liu, A. Maki, T. Nozaki, T. Omori, H. Sagawa, Y. Sakai, T. Sasaki, Y. Sugimoto, Y. Takaiwa, S. Terada, R. Walker, S. Kanda, S. L. Olsen, K. Ueno, F. Kajino, R. Poling, T. Thomas, T. Aso, K. Miyano, H. Miyata, M. Oyoshi, Y. Yamashita, M. H. Lee, F. Sannes, S. Schnetzer, R. Stone, J. Vinson, A. Bodek, B. J. Kim, T. Kumita, Y. K. Li, C. Velisarris, S. Kobayashi, A. Murakami, S. K. Sahu, Y. S. Chung, J. S. Kang, K. B. Lee, K. W. Park, S. K. Kim, S. S. Myung, S. K. Choi, D. Son, S. Ebara, S. Matsumoto, N. Takashimizu, T. Ishizuka

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3 Scopus citations

Abstract

We report on a measurement of the forward-backward charge asymmetry in e+e-→qq̄ at KEK TRISTAN, where the asymmetry is near maximum. We sum over all flavors and measure the asymmetry by determining the charge of the quark jets. In addition we exploit flavor dependencies in the jet charge determination to enhance the contributions of certain flavors. This provides a check on the asymmetries of individual flavors. The measurement agrees with the standard model expectations.

Original languageEnglish (US)
Pages (from-to)3098-3105
Number of pages8
JournalPhysical Review D
Volume49
Issue number7
DOIs
StatePublished - 1994

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