2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/42409We calculate the cross section and the transverse momentum distribution of inclusive J/ψproduction in γγcollisions at CERN LEP2 within the colour singlet model and the k_T-factorization approach, including both direct and resolved photon contributions. The unintegrated gluon distribution in the photon is determined, using the Blumlein's prescription for unintegrated gluon distribution in a proton. We compare our theoretical predictions with preliminary data taken by the DELPHI collaboration at LEP2. In addition, we present our predictions for the J/ψpolarization properties.11 pages, 6 figuresHigh Energy Physics - Phenomenologytext