Perturbative QCD Description of Mean Jet and Particle Multiplicities in e+e- annihilation
High Energy Physics - Phenomenology
2009-10-30 v1
Abstract
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.
Keywords
Cite
@article{arxiv.hep-ph/9711255,
title = {Perturbative QCD Description of Mean Jet and Particle Multiplicities in e+e- annihilation},
author = {Sergio Lupia and Wolfgang Ochs},
journal= {arXiv preprint arXiv:hep-ph/9711255},
year = {2009}
}
Comments
LaTeX, 7 pages, 3 figures, uses espcrc2.sty, to appear in Proc. of XXVII International Symposium on Multiparticle Dynamics, Frascati, Italy, September 1997, Nucl Phys. B (Proc. Suppl.)