A quantitative reanalysis of charmonium suppression in nuclear collisions

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.