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Inclusive production of charged pions, kaons and protons in υ(4S) decays

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Zeitschrift für Physik C Particles and Fields

Abstract

Using the detector ARGUS at thee + e storage ring DORIS II, we have investigated inclusive momentum spectra of charged pions, kaons, and protons from decays of the υ(4S) meson. The kaon spectra have been measured in two independent ways, by coherently exploiting the detector's particle identification capabilities, and by detecting decays in-flight. The extracted mean multiplicities for charged hadrons are 7.17±0.05±0.14 pions, 1.56±0.03±0.05 kaons and 0.110±0.010±0.007 protons per υ(4S) decay, where pions and protons fromK o s and Δ decays have been subtracted.

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Supported in part by the Institute of Physics, University of Lund, Sweden

Supported by the German Bundesministerium für Forschung und Technologie, under contract number 054DO51P

Supported by the German Bundesministerium für Forschung und Technologie, under contract number 054ER12P

Supported by the German Bundesministerium für Forschung und Technologie, under contract number 055HD21P

Supported in part by the Walter C. Sumner Foundation

Supported by the Natural Sciences and Engineering Research Council, Canada

Supported by the German Bundesministerium für Forschung und Technologie, under contract number 054KA17P

Supported by the Department of Science and Technology of the Republic of Slovenia and the Internationales Büro KfA, Jülich

Supported by the Swedish Research Council

Supported in part by the International Technology Center BINITEC, Moscow, Russia

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ARGUS Collaboration., Albrecht, H., Cronström, H.I. et al. Inclusive production of charged pions, kaons and protons in υ(4S) decays. Z. Phys. C - Particles and Fields 58, 191–198 (1993). https://doi.org/10.1007/BF01560337

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  • DOI: https://doi.org/10.1007/BF01560337

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