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          Institute: MPI für Physik     Collection: MPI für Physik     Display Documents



ID: 545051.0, MPI für Physik / MPI für Physik
Study of moments of event shapes in e+e- annihilation using JADE data
Authors:the JADE Collaboration; Pahl, C.; Kluth, S.; Bethke, S.; Movilla Fernandez, P. A.; Schieck, J.
Audience:Not Specified
Intended Educational Use:No
Abstract / Description:Data from e+e- annihilation into hadrons collected by the JADE experiment at centre-of-mass energies between 14~GeV and 44~GeV were used to study moments of event shape distributions. The data were compared with Monte Carlo models and with predictions from QCD NLO order calculations.
The strong coupling constant measured from the moments is
alpha_S(M_Z) = 0.1286 +/- 0.0007 (stat) +/- 0.0011 (expt) +/- 0.0022 (had) +/- 0.0068 (theo), alpha_S(M_Z) = 0.1286 +/- 0.0072 (total~error), consistent with the world average. However, systematic deficiencies in the QCD NLO order predictions are visible for some of the higher moments.
Classification / Thesaurus:JADE
Comment of the Author/Creator:JADE note 147 submitted as contributed paper to ICHEP 2004
Document Type:Article
Communicated by:N.N.
Affiliations:MPI für Physik
Identifiers:LOCALID:MPP-2004-100
URL:http://publications.mppmu.mpg.de/?action=search&mp...
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