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An upper limit for two-jet production in directϒ(1S) decays

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Zeitschrift für Physik C Particles and Fields

Abstract

Using the ARGUS detector at thee + e storage ring DORIS II at DESY, we have studied the distribution of various topological quantities on the Υ(1S) resonance and in the nearby continuum. With the help of the second Fox-Wolfram moment we determine the two-jet contribution to direct Υ(1S) decays to be less than 5.3% with 95% confidence.

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Supported by the Bundesministerium für Forschung und Technologie, FRG

Supported by the Natural Sciences and Engineering Research Council, Canada

Supported by the U.S. National Science Foundation and a University of Kansas Faculty Improvement award

Supported in part by the Internationales Büro KfA, Jülich and DESY, Hamburg, FRG

Supported by the Swedish Research Council, Sweden

Supported by the U.S. Department of Energy, under contract DE-A809-80ER10690

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ARGUS Collaboration., Albrecht, H., Binder, U. et al. An upper limit for two-jet production in directϒ(1S) decays. Z. Phys. C - Particles and Fields 31, 181–184 (1986). https://doi.org/10.1007/BF01479524

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  • DOI: https://doi.org/10.1007/BF01479524

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