ENHANCED J PSI SUPPRESSION DUE TO GLUON DEPLETION/

The nonlinear effect of gluon depletion in the collision of large nucl ei can be large. It is due to multiple scatterings among comoving part ons initiated by primary scattering of partons in the colliding nuclei . The effect can give rise to substantial suppression of J/psi product ion in very large nuclei, even if the linear depletion effect is insig nificant for the collisions of nuclei of smaller sizes. This mechanism offers a natural explanation of the enhanced suppression in the Pb-Pb data recently observed by NA50.