J/Psi and Psi' Suppression in Hadronic Matter

Details J/Psi and Psi' Suppression in Hadronic Matter J/Psi and Psi' Suppression in Hadronic Matter

1996-01-23

arxiv.org/abs/hep-ph/9601314v2

Prog.Part.Nucl.Phys. 36 (1996) 409-410

Physics

High Energy Physics

High Energy Physics - Phenomenology

LaTeX, 6 pages including 2 EPS files, to be published in Prog. Part. Nucl. Phys., martins@darss.mpg.uni-rostock.de

Scientific paper

10.1016/0146-6410(96)00046-4

We present a microscopic calculation of the breakup cross sections of $J/\psi$ and $\psi'$ on pions and nucleons as a function of the kinetic energy. These cross sections are used for the investigation of the $J/\psi$ to continuum and $\psi'/J/\psi$ ratios in ultrarelativistic heavy ion collisions. The contribution of produced comoving pions to the $\psi'/J/\psi$ signal is calculated. While this model can account for the data, the uncertainties in the parameter values do not allow to exclude the possibility of additional sources for charmonium absorption, like a resonance gas or the quark gluon plasma.

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