We 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.Comment: 6 pages Latex, 3 figures, talk given at 12th International Conference
on Elastic and Diffractive Scattering, 21-25 May 2007, DESY, Hambur