Transverse Momentum Distribution of J/Psi's in Pb-Pb Collisions and Gluon Rescattering

Abstract

The transverse momentum dependence of J/Psi suppression in relativistic heavy ion collisions is calculated from initial state gluon rescattering not only with nucleons but also with prompt gluons produced in nucleon-nucleon collisions in the early phase of the reaction. The second mechanism is new and turns out to be important in a description of the data for central collisions.Comment: 15 pages,6 figure