Evidence for statistical production of J/psi mesons in nuclear collisions at 158-200A GeV

Authors
Gazdzicki, M Gorenstein, MI
Citation
M. Gazdzicki et Mi. Gorenstein, Evidence for statistical production of J/psi mesons in nuclear collisions at 158-200A GeV, PHYS REV L, 83(20), 1999, pp. 4009-4012
Citations number
40
Categorie Soggetti
Physics
Journal title
PHYSICAL REVIEW LETTERS
ISSN journal
00319007 → ACNP
Volume
83
Issue
20
Year of publication
1999
Pages
4009 - 4012
Database
ISI
SICI code
0031-9007(19991115)83:20<4009:EFSPOJ>2.0.ZU;2-G
Abstract
The hypothesis of statistical production of J/psi mesons at hadronization i s formulated and checked against experimental data. It explains in a natura l way the observed scaling behavior of the J/psi to pion ratio at CERN SPS energies. Using the multiplicities of J/psi and eta mesons the hadronizatio n temperature T-H approximate to 175 MeV is found, which agrees with the pr evious estimates of the temperature parameter based on the analysis of the hadron yield systematics.