Charged-particle multiplicities in e+e- annihilations at s=50-61.4 GeV

H. W. Zheng, P. Perez, P. Auchincloss, D. Blanis, A. Bodek, H. Budd, S. Eno, C. A. Fry, H. Harada, Y. H. Ho, Y. K. Kim, T. Kumita, T. Mori, S. L. Olsen, N. M. Shaw, A. Sill, E. H. Thorndike, K. Ueno, R. Imlay, P. KirkJ. Lim, R. R. McNeil, W. Metcalf, S. S. Myung, C. P. Cheng, P. Gu, J. Li, Y. K. Li, M. H. Ye, Y. C. Zhu, A. Abashian, K. Gotow, K. P. Hu, E. H. Low, M. E. Mattson, L. Piilonen, K. L. Sterner, S. Lusin, C. Rosenfeld, A. T.M. Wang, S. Wilson, M. Frautschi, H. Kagan, R. Kass, C. G. Trahern, R. E. Breedon, G. N. Kim, Winston Ko, R. L. Lander, K. Maeshima, R. L. Malchow, J. R. Smith, D. Stuart, K. Abe, Y. Fujii, Y. Higashi, S. K. Kim, Y. Kurihara, A. Maki, T. Nozaki, T. Omori, H. Sagawa, Y. Sakai, Y. Sugimoto, Y. Takaiwa, S. Terada, R. Walker, F. Kajino, D. Perticone, R. Poling, T. Thomas, Y. Ishi, K. Miyano, H. Miyata, T. Sasaki, Y. Yamashita, A. Bacala, J. Liu, I. H. Park, F. Sannes, S. Schnetzer, R. Stone, J. Vinson, S. Kobayashi, A. Murakami, J. S. Kang, H. J. Kim, M. H. Lee, D. H. Han, E. J. Kim, D. Son, T. Kojima, S. Matsumoto, R. Tanaka, Y. Yamagishi, T. Yasuda, T. Ishizuka, K. Ohta

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Abstract

We present the charged-particle multiplicity distributions for e+e- annihilation at center-of-mass energies from 50 to 61.4 GeV. The results are based on a data sample corresponding to a total integrated luminosity of 30 pb-1 obtained with the AMY detector at the KEK storage ring TRISTAN. The charged-particle multiplicity distributions deviate significantly from the modified Poisson and pair Poisson distributions, but follow Koba-Nielsen-Olesen scaling and are well reproduced by the LUND parton-shower model.

Original languageEnglish (US)
Pages (from-to)737-747
Number of pages11
JournalPhysical Review D
Volume42
Issue number3
DOIs
StatePublished - 1990

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