Hyperon production in e+e- interactions in the upsilon region

M. S. Alam, S. E. Csorna, L. Garren, M. D. Mestayer, R. S. Panvini, Xia Yi, P. Avery, C. Bebek, K. Berkelman, D. G. Cassel, J. W. DeWire, R. Ehrlich, T. Ferguson, R. Galik, M. G.D. Gilchriese, B. Gittelman, M. Halling, D. L. Hartill, S. Holzner, M. ItoJ. Kandaswamy, D. L. Kreinick, Y. Kubota, N. B. Mistry, F. Morrow, E. Nordberg, M. Ogg, A. Silverman, P. C. Stein, S. Stone, D. Weber, R. Wilcke, A. J. Sadoff, R. Giles, J. F. Hassard, M. Hempstead, K. Kinoshita, W. W. MacKay, F. M. Pipkin, Richard Wilson, P. Haas, T. Jensen, H. Kagan, R. Kass, S. Behrends, K. Chadwick, J. Chauveau, T. Gentile, Jan M. Guida, Joan A. Guida, A. C. Melissinos, S. L. Olsen, G. Parkhurst, D. Peterson, R. Poling, C. Rosenfeld, E. H. Thorndike, P. Tipton, D. Besson, J. Green, R. G. Hicks, R. Namjoshi, F. Sannes, P. Skubic, A. Snyder, R. Stone, A. Chen, M. Goldberg, M. E. Hejazifar, N. Horwitz, A. Jawahery, P. Lipari, G. C. Moneti, C. G. Trahern, H. Van Hecke

研究成果: 雜誌貢獻期刊論文同行評審

19 引文 斯高帕斯(Scopus)

摘要

We report measurements from the CLEO detector of the rate of Ξ and Λ production in e+e- interactions in the upsilon region. Hyperon production from the decay of the (1s) is compared with continuum e+e- data. The ratio of the production rates of Λ (and Λ - ) to K0 (and K - 0) on the (1s) is 0.21 ± 0.03, much larger than in the continuum, 0.07 ± 0.01. The ratios of the production rates of the Ξ and Λ are comparable, 0.10±0.02[(1S)] and 0.07 ± 0.02 (continuum). We discuss some implications of the data for gluon and quark fragmentation models.

原文???core.languages.en_GB???
頁(從 - 到)24-27
頁數4
期刊Physical Review Letters
53
發行號1
DOIs
出版狀態已出版 - 1984

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