Correlations among hadrons with the same electric charge produced in Z(0) d
ecays are studied using the high statistics data collected from 1991 throug
h 1995 with the OPAL detector at LEP. Normalized factorial cumulants up to
fourth order are used to measure genuine particle correlations as a functio
n of the size of phase space domains in rapidity, azimuthal angle and trans
verse momentum. Both all-charge and like-sign particle combinations show st
rong positive genuine correlations. One-dimensional cumulants initially inc
rease rapidly with decreasing size of the phase space cells but saturate qu
ickly. In contrast, cumulants in two- and three-dimensional domains continu
e to increase. The strong rise of the cumulants for all-charge multiplets i
s increasingly driven by that of like-sign multiplets. This points to the l
ikely influence of Bose-Einstein correlations. Some of the recently propose
d algorithms to simulate Bose-Einstein effects, implemented in the Monte Ca
rlo model PYTHIA, are found to reproduce reasonably well the measured secon
d- and higher-order correlations between particles with the same charge as
well as those in all-charge particle multiplets. (C) 2001 Elsevier Science
B.V. All rights reserved.