Perturbative QCD description of mean jet and particle multiplicities in e+e- annihilation

被引:0
|
作者
Lupia, S [1 ]
Ochs, W [1 ]
机构
[1] Max Planck Inst Phys, Werner Heisenberg Inst, D-80805 Munich, Germany
关键词
D O I
10.1016/S0920-5632(98)00336-3
中图分类号
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号
摘要
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(o) and the scale of alpha(s).
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页码:152 / 157
页数:6
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