J/ψ\psi production and suppression in nuclear collisions


In terms of a new QCD factorization formula for J/ψ\psi production, we calculate the J/ψ\psi suppression in nuclear collisions by including the multiple scattering between the pre-J/ψ\psi partonic states and the nuclear medium. We find agreement with all data on J/ψ\psi suppression in hadron-nucleus and nucleus-nucleus collisions, except a couple of points (the ``second drop'') at the highest ETE_T bins of the new NA50 data.Comment: Latex, 4 pages, to appear in the proceedings of Quark Matter 200

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