Inelastic J/psi production in polarized photon-hadron collisions - art. no. 114013

We present a calculation of inelastic J/psi production in polarized photon- hadron collisions. We consider the photoproduction of J/psi in the energy r ange relevant to the DESY HERA collider. The Weizsacker-Williams approximat ion is adapted in the evaluation of the cross sections for ep collisions. W e find that this process can give another independent test for the color-oc tet mechanism, and the different features for the two color-octet processes may provide further information on the mechanism for inelastic J/psi photo production. The discrepancy in the production asymmetry A between various s ets of polarized gluon distribution functions is also found to be distincti ve.