2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/137220We study the exclusive production of J/psi or Upsilon in pp and bar pp collisions, where the meson emerges from the pomeron--odderon and the pomeron--photon fusion. We estimate the cross sections for these processes for the kinematical conditions of the Tevatron and of the LHC.6 pages Latex, 3 figures, talk given at 12th International Conference on Elastic and Diffractive Scattering, 21-25 May 2007, DESY, HamburgHigh Energy Physics - Phenomenologytext