2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/207739We calculate the NRQCD matrix elements for the decays of the lowest-lying S- and P-wave states of charmonium and bottomonium in quenched lattice QCD. We also compute the one-loop relations between the lattice and continuum matrix elements.10 pages, LaTeX. Talk presented at the Quarkonium Physics Workshop, University of Illinois, Chicago, June 13-15, 1996High Energy Physics - PhenomenologyHigh Energy Physics - Latticetext