2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/146996A rapidity gap trigger for the ALICE detector at the Large Hadron Collider LHC is presented and a few selected physics observables are discussed. First, some properties of double pomeron events are outlined. Second, signatures of the odderon in diffractive J/Psi production is discussed. Third, possible evidence of gluon saturation in the cross section of diffractive heavy quark photoproduction is investigated.Talk presented at the conference "New trends in High-Energy Physics" (experiment,phenomenology,theory), Yalta, Crimea, Ukraine, sep 15-22, 2007, 5 pages, 1 figureHigh Energy Physics - Phenomenologytext