J / psi suppression and enhancement in Au + Au collisions at the BNL RHIC

We consider the production of the J/psi mesons in heavy ion collisions at RHIC energies in the statistical coalescence model with an exact (canonical ensemble) charm conservation. The cc quark pairs are assumed to be cre
We consider the production of the J/psi mesons in heavy ion collisions at RHIC energies in the statistical coalescence model with an exact (canonical ensemble) charm conservation. The cc quark pairs are assumed to be created in the primary hard parton collisions, but the formation of the open and hidden charm particles takes place at the hadronization stage and follows the prescription of statistical mechanics. The dependence of the J/psi production on both the number of nucleon participants and the collision energy is studied. The model predicts the J/psi suppression for low energies, whereas at the highest RHIC energy the model reveals the J/psi enhancement.
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Metadaten
Author:Mark I. Gorenstein, Andriy P. Kostyuk, Horst Stöcker, Walter Greiner
URN:urn:nbn:de:hebis:30-21711
Document Type:Preprint
Language:German
Date of Publication (online):2005/11/21
Year of first Publication:2001
Publishing Institution:Univ.-Bibliothek Frankfurt am Main
Release Date:2005/11/21
Tag:J/psi Erhöhung; J/psi Unterdrückung ; schwere Ion-Kollision
J/psi enhancement; J/psi suppression ; heavy ion collision
Source:Phys.Lett.B524:265-272,2002. [hep-ph/0104071]
HeBIS PPN:185538827
Institutes:Physik
Dewey Decimal Classification:530 Physik
Sammlungen:Universitätspublikationen
Licence (German):License Logo Veröffentlichungsvertrag für Publikationen

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