Evidence for statistical production of J/psi mesons in nuclear collisions at the CERN SPS

  • The hypothesis of statistical production of J/psi mesons at hadronization is formulated and checked against experimental data. It explains in the natural way the observed scaling behavior of the J/psi to pion ratio at the CERN SPS energies. Using the multiplicities of J/psi and eta mesons the hadronization temperature T_H = 175 MeV is found, which agrees with the previous estimates of the temperature parameter based on the analysis of the hadron yield systematics.

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Author:Marek GaździckiORCiD, Mark I. GorensteinORCiDGND
ArXiv Id:http://arxiv.org/abs/hep-ph/9905515
Parent Title (German):IKF–HENPG ; 2–99
Series (Serial Number):IKF–HENPG (2–99)
Publisher:Institut für Kernphysik, Goethe-Universität Frankfurt
Place of publication:Frankfurt am Main
Document Type:Working Paper
Year of Completion:1999
Year of first Publication:1999
Publishing Institution:Universitätsbibliothek Johann Christian Senckenberg
Release Date:2005/09/29
Source:Phys.Rev.Lett. 83 (1999), http://arxiv.org/abs/hep-ph/9905515
Institutes:Physik / Physik
Dewey Decimal Classification:5 Naturwissenschaften und Mathematik / 53 Physik / 530 Physik
Licence (German):License LogoDeutsches Urheberrecht