Indications for cluster melting from forward-backward charge fluctuations at RHIC energies

We study forward-backward charge fluctuations to probe the correlations among produced particles in ultra relativistic heavy ion collisions. We develop a model that describes the forward-backward dynamical fluctuations a
We study forward-backward charge fluctuations to probe the correlations among produced particles in ultra relativistic heavy ion collisions. We develop a model that describes the forward-backward dynamical fluctuations and apply it to interpret the recent PHOBOS data. Within the present model, the dynamical fluctuations are related to the particle production mechanism via cluster decay and to long range correlations between the forward and backward rapidity hemispheres. We argue that with a tight centrality cut, PHOBOS may see a strong decrease of the dynamical fluctuations. Within the present model, this deterioration of the correlation among the produced hadrons can be interpreted as a sign for the production of a hot, dense and interacting medium.
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Metadaten
Author:Mohamed Abdel-Aziz, Marcus Bleicher
URN:urn:nbn:de:hebis:30-27858
Document Type:Preprint
Language:English
Date of Publication (online):2006/06/14
Year of first Publication:2006
Publishing Institution:Univ.-Bibliothek Frankfurt am Main
Release Date:2006/06/14
Tag:event-by-event fluctuations; relativistic heavy ions
HeBIS PPN:190701374
Institutes:Physik
Dewey Decimal Classification:530 Physik
PACS-Classification:24.60.-k Statistical theory and fluctuations
24.60.Ky Fluctuation phenomena
25.75.Ld Collective flow
Sammlungen:Universitätspublikationen
Licence (German):License Logo Veröffentlichungsvertrag für Publikationen

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