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arXiv · hep-ph/9905515

Evidence for Statistical Production of J/psi Mesons in Nuclear Collisions at 158--200 A GeV

Marek Gazdzicki·Mark I. Gorenstein
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Abstract

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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Marek Gazdzicki, Mark I. Gorenstein. 1999-10-18. Evidence for Statistical Production of J/psi Mesons in Nuclear Collisions at 158--200 A GeV. https://doi.org/10.1103/physrevlett.83.4009

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