2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/49227We consider the dependencies of spin asymmetries in the diffractive $J/Ψ$ and $Q \bar Q$ leptoproduction at HERA energies on the structure of the pomeron-proton coupling. It is shown that it is difficult to study the spin structure of the pomeron coupling with the proton from the $A_{ll}$ asymmetry. The $A_{lT}$ asymmetry is an appropriate object for this investigation.4 pages, latex, 4 figures, to be published in Proc. of the Workshop "Polarized Protons at High Energies - Accelerator Challenges and Physics Opportunities", 17-20 May 1999, DESY, HamburgHigh Energy Physics - Phenomenologytext