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

H. Albrecht, H. I. Cronström, H. Ehrlichmann, T. Hamacher, R. P. Hofmann, T. Kirchhoff, A. Nau, S. Nowak, M. Reidenbach, R. Reiner, H. Schröder, H. D. Schulz, M. Walter, R. Wurth, R. D. Appuhn, C. Hast, H. Kolanoski, A. Lange, A. Lindner, R. MankelM. Schieber, T. Siegmund, B. Spaan, H. Thurn, D. Töpfer, A. Walther, D. Wegener, M. Paulini, K. Reim, H. Wegener, R. Mundt, T. Oest, W. Schmidt-Parzefall, W. Funk, J. Stiewe, S. Werner, K. Ehret, A. Hölscher, W. Hofmann, A. Hüpper, S. Khan, K. T. Knöpfle, J. Spengler, D. I. Britton, C. E.K. Charlesworth, K. W. Edwards, E. R.F. Hyatt, H. Kapitza, P. Krieger, D. B. MacFarlane, P. M. Patel, J. D. Prentice, P. R.B. Saull, S. C. Seidel, K. Tzamariudaki, R. G. Van de Water, T. S. Yoon, D. Reßing, M. Schmidtler, M. Schneider, K. R. Schubert, K. Strahl, R. Waldi, S. Weseler, G. Kernel, P. Križan, E. Križnič, T. Podobnik, T. Živko, L. Jönsson, V. Balagura, I. Belyaev, M. Danilov, A. Droutskoy, A. Golutvin, I. Gorelov, G. Kostina, V. Lubimov, P. Murat, P. Pakhlov, F. Ratnikov, S. Semenov, V. Shibaev, V. Soloshenko, I. Tichomirov, Yu Zaitsev

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18 Scopus citations

Abstract

Using the detector ARGUS at the e+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(4 S) decay, where pions and protons from Ks o and Δ decays have been subtracted.

Original languageEnglish
Pages (from-to)191-198
Number of pages8
JournalZeitschrift für Physik C Particles and Fields
Volume58
Issue number2
DOIs
StatePublished - Jun 1993
Externally publishedYes

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