Perturbative QCD Description of Mean Jet and Particle Multiplicities in e+e- annihilation

Details Perturbative QCD Description of Mean Jet and Particle Multiplicities in e+e- annihilation Perturbative QCD Description of Mean Jet and Particle Multiplicities in e+e- annihilation

1997-11-06

arxiv.org/abs/hep-ph/9711255v1

Nucl.Phys.Proc.Suppl. 71 (1999) 152-157

Physics

High Energy Physics

High Energy Physics - Phenomenology

LaTeX, 7 pages, 3 figures, uses espcrc2.sty, to appear in Proc. of XXVII International Symposium on Multiparticle Dynamics, Fr

Scientific paper

10.1016/S0920-5632(98)00336-3

A complete numerical solution of the evolution equation for parton multiplicities in quark and gluon jets with initial conditions at threshold is presented. Data on both hadron and jet multiplicities in e+e- annihilation are well described with a common normalization, giving further support to the picture of Local Parton Hadron Duality. Predictions for LEP-II energies are presented. Furthermore we study the sensitivity to the cutoff parameter Q_0 and the scale of alpha_s.

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