Author/Authors :
Achard، نويسنده , , P. and Adriani، نويسنده , , O. and Aguilar-Benitez، نويسنده , , M. and Alcaraz، نويسنده , , J. and Alemanni، نويسنده , , G. and Allaby، نويسنده , , J. and Aloisio، نويسنده , , A. and Alviggi، نويسنده , , M.G. and Anderhub، نويسنده , , H. and Andreev، نويسنده , , V.P. and Anselmo، نويسنده , , F. and Arefiev، نويسنده , , A. and Azemoon، نويسنده , , T. and Aziz، نويسنده , , T. and Bagnaia، نويسنده , , P. and Bajo، نويسنده ,
Abstract :
In this Report, QCD results obtained from a study of hadronic event structure in high energy e + e - interactions with the L3 detector are presented. The operation of the LEP collider at many different collision energies from 91 to 209 GeV offers a unique opportunity to test QCD by measuring the energy dependence of different observables. The main results concern the measurement of the strong coupling constant, α s , from hadronic event shapes and the study of effects of soft gluon coherence in charged particle multiplicity and momentum distributions.