Genuine Correlations in Hadronic Z$^0$ Decays

Details Genuine Correlations in Hadronic Z$^0$ Decays Genuine Correlations in Hadronic Z$^0$ Decays

2001-12-13

arxiv.org/abs/hep-ph/0112173v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

6 pages, 4 figures (in ps), talk given at XXXI International Symposium on Multiparticle Dynamics, Sept 1-7, 2001, Datong China

Scientific paper

Correlations among hadrons with the same electric charge produced in Z$^0$ 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 \PYTHIA, 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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