2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/210418The ALICE experiment at the LHC is presented and a diffractive double gap trigger is described. Signatures of Pomeron and Odderon are discussed together with photoproduction of heavy quarks as a possible signature of gluon saturation.7 pages, 6 fig, to appear in Proceedings of HERA-LHC workshop, may 26-30, 2008, CERNHigh Energy Physics - Phenomenologytext