The effect of many sources on the genuine multiparticle correlations

Abstract

We report on a study aimed to explore the dependence of the genuine multiparticle correlations on the number of sources when the influence of other possible factors during multihadron production are avoided. The analysis utilised the normalised cumulants calculated in three-dimensional phase space of the reaction ee -> Z -> hadrons using a large Monte Carlo sample. The multi-sources events were simulated by overlaying a few independent single ee annihilation events. It was found that as the number of sources increases, the cumulants do not change significantly their structure, but those of an order higher than two decrease fast in their magnitude. This reduction and its amount can be understood in terms of combinatorial considerations of source mixing which dilutes the correlations. The diminishing of the genuine correlations is consistent with recent cumulant measurements in hadron and nucleus induced reactions and should also be relevant to other dynamical correlations like the Bose-Einstein one, in ee -> WW -> hadrons and in nucleus-nucleus reactions.

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Cited by in corpus (9)

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• Prospects of searching for (un)particles from Hidden Sectors using rapidity correlations in multiparticle production at the LHC
• Genuine Correlations of Like-Sign Particles in Hadronic Z0 Decays
• The many sources effect on the genuine multihadron correlations
• Genuine Three-Body Bose-Einstein Correlations and Percolation of Strings
• The dependence of Bose-Einstein Correlations on energy, multiplicity and hadronic jets
• The particle emitter size dependence on energy in $e^{+}{e}^{-}$ annihilations into hadrons
• Internal cumulants for femtoscopy with fixed charged multiplicity