Measurement of π0 and η meson production in e+e- annihilation at {Mathematical expression} near 10 GeV

Ch Bieler, D. Antreasyan, H. W. Bartels, D. Besset, J. K. Bienlein, A. Bizzeti, E. D. Bloom, I. Brock, K. Brockmüller, R. Cabenda, A. Cartacci, M. Cavalli-Sforza, R. Clare, A. Compagnucci, G. Conforto, S. Cooper, R. Cowan, D. Coyne, A. Engler, K. FairfieldG. Folger, A. Fridman, J. Gaiser, D. Gelphman, G. Glaser, G. Godfrey, K. Graaf, F. H. Heimlich, F. H. Heinsius, R. Hofstadter, J. Irion, Z. Jakubowski, H. Janssen, K. Karch, S. Keh, T. Kiel, H. Kilian, I. Kirkbride, T. Kloiber, M. Kobel, W. Koch, A. C. König, K. Königsmann, R. W. Kraemer, S. Krüger, G. Landi, R. Lee, S. Leffler, R. Lekebusch, A. M. Litke, W. Lockman, S. Lowe, B. Lurz, D. Marlow, H. Marsiske, W. Maschmann, P. McBride, F. Messing, W. J. Metzger, H. Meyer, B. Monteleoni, B. Muryn, R. Nernst, B. Niczyporuk, G. Nowak, C. Peck, P. G. Pelfer, B. Pollock, F. C. Porter, D. Prindle, P. Ratoff, M. Reidenbach, B. Renger, C. Rippich, M. Scheer, P. Schmitt, J. Schotanus, J. Schütte, A. Schwarz, D. Sievers, Tomasz Skwarnicki, V. Stock, K. Strauch, U. Strohbusch, J. Tompkins, H. I. Trost, B. van Uitert, R. T. Van de Walle, H. Vogel, A. Voigt, U. Volland, K. Wachs, K. Wacker, W. Walk, H. Wegener, D. A. Williams, P. Zschorsch

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Abstract

We present a study of inclusive π0 and {eng} production in e+e- annihilation at {Mathematical expression}. Our analysis is based on integrated luminosities of 46.2 pb-1 taken at the υ (1 S) resonance and 42.1 pb-1 taken in the neighboring continuum. We measure the inclusive π0 and {eng} spectra for direct υ (1 S) → 3 g decays and continuum processes {Mathematical expression} and obtain the following mean particle multiplicities per event: {Mathematical expression} We compare our results with predictions of different fragmentation models and with other measurements performed in e+e- annihilation at similar center-of-mass energies.

Original languageEnglish (US)
Pages (from-to)225-233
Number of pages9
JournalZeitschrift für Physik C Particles and Fields
Volume49
Issue number2
DOIs
StatePublished - Jun 1991
Externally publishedYes

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ASJC Scopus subject areas

  • Nuclear and High Energy Physics

Cite this

Bieler, C., Antreasyan, D., Bartels, H. W., Besset, D., Bienlein, J. K., Bizzeti, A., Bloom, E. D., Brock, I., Brockmüller, K., Cabenda, R., Cartacci, A., Cavalli-Sforza, M., Clare, R., Compagnucci, A., Conforto, G., Cooper, S., Cowan, R., Coyne, D., Engler, A., ... Zschorsch, P. (1991). Measurement of π0 and η meson production in e+e- annihilation at {Mathematical expression} near 10 GeV. Zeitschrift für Physik C Particles and Fields, 49(2), 225-233. https://doi.org/10.1007/BF01555494