Genuine Correlations in Hadronic Z0 Decays
Abstract
Correlations among hadrons with the same electric charge produced in Z0 decays are studied using the high statistics data collected from 1991 through 1995 with the OPAL detector at LEP. Normalized factorial cumulants up to fourth order are used to measure genuine pa rticle correlations as a function of the size of phase space domains in rapidity, azimuthal angle and transverse momentum. tein correlations. Some of the recently proposed algorithms to simulate Bose-Einstein effects, implemented in the Monte Carlo model , reproduce reasonably well the me asured second- and higher-order correlations between particles with the same charge as well as those in all-charge particle multiplets.
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