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

被引:74
作者
Gazdzicki, M [1 ]
Gorenstein, MI
机构
[1] Goethe Univ Frankfurt, Inst Kernphys, D-60486 Frankfurt, Germany
[2] Goethe Univ Frankfurt, Inst Theoret Phys, D-60054 Frankfurt, Germany
[3] Bogolyubov Inst Theoret Phys, Kiev, Ukraine
关键词
D O I
10.1103/PhysRevLett.83.4009
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
The hypothesis of statistical production of J/psi mesons at hadronization is formulated and checked against experimental data. It explains in a natural 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 hadronization temperature T-H approximate to 175 MeV is found, which agrees with the previous estimates of the temperature parameter based on the analysis of the hadron yield systematics.
引用
收藏
页码:4009 / 4012
页数:4
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