Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2000-08-16
Nucl.Phys.Proc.Suppl. 92 (2001) 211-222
Physics
High Energy Physics
High Energy Physics - Phenomenology
12 pages, 4 figs. Invited talk presented by G. Alexander at the 9th International Workshop on Multiparticle Production: New Fr
Scientific paper
10.1016/S0920-5632(00)01036-7
Here we report on a study aimed to explore the dependence of the genuine multiparticle correlations on the number of sources while the influence of other possible factors affecting the multihadron production is avoided. The analysis utilised the normalised cumulants, calculated in three-dimensional phase space, of the reaction e+e- -> Z -> hadrons using a large Monte Carlo event sample. The multi-sources reactions were simulated by overlaying a few independent single e+e- annihilation events. It was found that as the number of sources S increases, the cumulants do not change significantly their structure, but those of an order q>2 (i.e. more than 2 pions) decrease fast in their magnitude. This reduction can be understood in termsof combinatorial considerations of source mixing which dilutes the correlations by a factor of about 1/S^{q-1} which can also serve as a method to estimated the number of sources. This expected suppression is well reproduced by recent cumulant measurements in hadron and nucleus induced reactions both in one (rapidity) and two (rapidity vs. azimuthal angle) dimensions. The diminishing genuine correlations effect should also appear in other dynamical correlations like the Bose-Einstein in e+e- -> W+W- -> hadrons and in nucleus-nucleus reactions.
Alexander Gideon
Sarkisyan Edward
No associations
LandOfFree
The many sources effect on the genuine multihadron correlations does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with The many sources effect on the genuine multihadron correlations, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The many sources effect on the genuine multihadron correlations will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-439288