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IHEP 2002 - 38
V.A.Uvarov
Study of charge multiplicity in hadronic three-jet Z decays at LEP
Protvino, 2002.- p.4, figs. 2, table 1, refs.:12.


The mean charge multiplicity in hadronic three-jet Z decays has been measured with the DELPHI detector as a function of the event topology and compared with recent theoretical calculations. The QCD colour factor ratio $C_A/C_F$ was determined, and the gluon contribution to this multiplicity was extracted giving a measurement of the mean charge multiplicity of a two-gluon colour-singlet system as a function of the effective c.m.~energy covering the range from 16 to 52 GeV.


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