J/psi plus dijet associated production in two-photon collisions

We study the production of a J/psi meson in association with one or two jet s in gamma gamma collisions concentrating on the direct-photon contribution . which is expected to be dominant for large J/psi -meson transverse moment um and/or large dijet invariant mass. We work at leading order in the facto rization formalism of nonrelativistic QCD and include all relevant colour-o ctet processes. We present distributions in J/psi -meson transverse momentu m and rapidity appropriate for CERN LEP2, a future e(+)e(-) linear collider , and a possible gamma gamma collider mode of the latter. In the case of th e e(+)e(-) linear collider, we assume the beamstrahlung spectrum appropriat e for DESY TESLA. (C) 2001 Elsevier Science B.V. All rights reserved.