A quantitative reanalysis of charmonium suppression in nuclear collisions

Abstract

We present a quantitative description of $J/\psi$ and ${\psi }^{\prime }$ suppression in proton-nucleus and nucleus-nucleus collisions at CERN energies. We use a conventional hadronic framework based on nuclear absorption plus final state interaction of the $J/\psi$ or ${\psi }^{\prime }$ with co-moving hadrons.

Comments: 20 pages, LaTeX, 4 postscript figures included using epsfig; calculations redone, discussions extended, references updated and added, conclusions unchanged; final version, accepted for publication in Phys. Lett. B