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 HAL : in2p3-00005199, version 1
 European Physical Journal C 16 (2000) 613-634
 Inclusive Production of $\pi^{0}, \eta, \eta'(958), K^0_s$ and $\Lambda$ in Two- and Three-Jet Events from Hadronic Z Decays
 ALEPH Collaboration(s)
 (2000)
 The production rates and the inclusive cross sections of the isovector meson $\pi^0$, the isoscalar mesons $\eta$ and $\eta^\prime(958)$, the strange meson $\mathrm{K^0_S}$ and the $\Lambda$ baryon have been measured as functions of scaled energy in hadronic events two-jet events and each jet of three-jet events from hadronic Z decays and compared to Monte Carlo models. The analysis is based on 3.7~million hadronic events collected with the ALEPH detector at LEP at a centre-of-mass energy of $\sqrt{s}=91.2$~GeV. The JETSET modelling of the gluon fragmentation into isoscalar mesons is found to be in agreement with the experimental results. HERWIG fails to describe the $\mathrm{K^0_S}$ spectra in gluon-enriched jets and the $\Lambda$ spectra in quark jets.
 Thème(s) : Physique/Physique des Hautes Energies - Expérience
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 in2p3-00005199, version 1 http://hal.in2p3.fr/in2p3-00005199 oai:hal.in2p3.fr:in2p3-00005199 Contributeur : Magali Damoiseaux <> Soumis le : Jeudi 16 Novembre 2000, 17:35:29 Dernière modification le : Jeudi 2 Juin 2005, 12:10:33