2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/188345We study pp and p\bar p collisions which lead to the exclusive production of J/psi or Upsilon from the pomeron-odderon and the pomeron-photon fusion. We calculate scattering amplitudes of these processes in the lowest order approximation and in the framework of k_T factorization. We present estimates of cross sections for the kinematic conditions of the Tevatron and of the LHC.21 pages, 5 figuresHigh Energy Physics - Phenomenologytext