A detailed study of strange particle production in e+e- annihilation at high energy

M. Althoff, W. Braunschweig, F. J. Kirschfink, K. Lübelsmeyer, H. U. Martyn, P. Rosskamp, D. Schmitz, H. Siebke, W. Wallraff, J. Eisenmann, H. M. Fischer, H. Hartmann, A. Joksch, G. Knop, H. Kolanoski, H. Kuck, V. Mertens, R. Wedemeyer, B. Foster, A. EskreysK. Gather, M. Hildebrandt, H. Hultschig, P. Joos, U. Kötz, H. Kowalski, A. Ladage, B. Löhr, D. Lüke, P. Mättig, D. Notz, R. J. Nowak, J. Pyrlik, E. Ronat, M. Rushton, W. Schütte, D. Trines, T. Tymieniecka, G. Wolf, G. Yekutieli, Ch Xiao, R. Fohrmann, E. Hilger, T. Kracht, H. L. Krasemann, P. Leu, E. Lohrmann, D. Pandoulas, G. Poelz, K. U. Pösnecker, B. H. Wiik, R. Beuselinck, D. M. Binnie, A. J. Campbell, P. J. Dornan, D. A. Garbutt, C. Jenkins, T. D. Jones, W. G. Jones, J. McCardle, J. K. Sedgbeer, J. Thomas, W. A T Wan Abdullah, K. W. Bell, M. G. Bowler, P. Bull, R. J. Cashmore, P. E L Clarke, P. Dauncey, R. Devenish, P. Grossmann, C. M. Hawkes, S. L. Lloyd, D. Mellor, C. Youngman, G. E. Forden, J. C. Hart, J. Harvey, D. K. Hasell, D. H. Saxon, P. L. Woodworth, F. Barreiro, S. Brandt, M. Dittmar, M. Holder, G. Kreutz, B. Neumann, E. Duchovni, Y. Eisenberg, U. Karshon, G. Mikenberg, R. Mir, D. Revel, A. Shapira, G. Baranko, A. Caldwell, Michael G. Cherney, J. M. Izen, M. Mermikides, S. Ritz, G. Rudolph, D. Strom, M. Takashima, H. Venkataramania, E. Wicklund, Sau Lan Wu, G. Zobernig

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Abstract

Results on K0 and Λ production in e+e- annihilation at c.m. energies of 14, 22 and 34 GeV are presented. The shape of the K0 and Λ differential cross sections are very similar to each other and to those of π±, K± and {Mathematical expression}. Scaling violations are observed for K0 production. We obtain a value for the probability to produce strange quark-antiquark pairs relative to that to produce up or down quark-antiquark pairs of 0.35±0.02±0.05. The value of Rh=σ(e+e-→hX)/σ μμ is shown to rise steadily with c.m. energy for all particle species. At 34 GeV we find 1.48±0.05 K0 and 0.31±0.03 Λ per event. We have searched for possible Λ polarization. The production of K0's and Λ's in jets is examined as a function of pT2 and rapidity and compared to that of all charged particles; the yields in two and three jets are also investigated. Results are presented from events with two baryons {Mathematical expression} observed.

Original languageEnglish
Pages (from-to)27-37
Number of pages11
JournalZeitschrift für Physik C Particles and Fields
Volume27
Issue number1
DOIs
StatePublished - Mar 1985
Externally publishedYes

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All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics

Cite this

Althoff, M., Braunschweig, W., Kirschfink, F. J., Lübelsmeyer, K., Martyn, H. U., Rosskamp, P., Schmitz, D., Siebke, H., Wallraff, W., Eisenmann, J., Fischer, H. M., Hartmann, H., Joksch, A., Knop, G., Kolanoski, H., Kuck, H., Mertens, V., Wedemeyer, R., Foster, B., ... Zobernig, G. (1985). A detailed study of strange particle production in e+e- annihilation at high energy. Zeitschrift für Physik C Particles and Fields, 27(1), 27-37. https://doi.org/10.1007/BF01642477