A QCD CALCULATION OF THE INTERACTION OF QUARKONIUM WITH NUCLEI

The interaction of quarkonium with nuclei is studied in the m(Q)-->infinity limit of QCD, where the binding energy is found to be exactly computable. The dominant contribution to the interaction is from two-gluon operators. The forward matrix elements of these two-gluon operators can be determined from the QCD scale anomaly, and from deep inelastic scattering. We apply our results to the UPSILON and J/psi, treating the QQBAR interaction as purely coulombic; We find the UPSILON-binds in nuclear matter with a binding energy of a few MeV, while for the J/psi-binding is of order 10 MeV. For the J/psi in particular we expect confinement effects to produce large corrections to this result.