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Properties of hadronicZ decays and test of QCD generators

descriptionPublicationkeyboard_double_arrow_right Article 01 Jun 1992 Italy Publisher:Springer Science and Business Media LLCJournal:Zeitschrift f�r Physik C Particles and Fields, volume 55, pages 209-234 (issn: 0170-9739, eissn: 1434-6052,

Authors: BUSKULIC D; DECAMP D; GOY C; LEES JP; MINARD MN; MOURS B; ALEMANY R; +193 Authors

doi: 10.1007/bf01482583

handle: 11588/509912 , 2434/175887 , 10281/390441 , 11365/37268 , 11568/828860 , 11589/4125 , 11384/3612 , 2158/638293 , 11586/28937

Properties of hadronicZ decays and test of QCD generators

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Abstract

Distributions are presented of event shape variables, jet roduction rates and charged particle momenta obtained from 53 000 hadronicZ decays. They are compared to the predictions of the QCD+hadronization models JETSET, ARIADNE and HERWIG, and are used to optimize several model parameters. The JETSET and ARIADNE coherent parton shower (PS) models with running αs and string fragmentation yield the best description of the data. The HERWIG parton shower model with cluster fragmentation fits the data less well. The data are in better agreement with JETSET PS than with JETSETO(αS2) matrix elements (ME) even when the renormalization scale is optimized.

Country

Italy

Related Organizations

Imperial College London
United Kingdom
University of Pisa
Italy
University of Milano-Bicocca
Italy
French National Centre for Scientific Research
France
Max Planck Society
Germany

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Keywords

Physics

42 Research products, page 1 of 5

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