ETA(C) PRODUCTION AT THE TEVATRON - A TEST OF NRQCD

We use NRQCD to predict the cross section for eta(c) production at the Tevatron. The non-perturbative matrix elements required are obtained, using heavy-quark symmetry, from the matrix elements determined from the CDF J/psi, data. Our numbers are, therefore, predictions of NRQCD and provide a very good test of it. Even after taking into account the small branching ratio of the eta(c) into two photons, a substantial r ate for the production of this resonance at the Tevatron is expected. (C) 1998 Elsevier Science B.V, All rights reserved.