2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/184044We study the possibility of same sign top quark pair production at the LHC (and the VLHC) as a direct probe of FCNC processes. Besides the SM neutral Z boson, two other neutral bosons are considered, a top-Higgs type scalar and a Z' boson that appear in Topcolor assisted Technicolor models. We find that the FCNC couplings tqV (q=u,c ; V=H,Z,Z') may produce an interesting signal of same sign top quark pairs that could be observed at the LHC (VLHC).6 pages, 8 figures. Some references addedHigh Energy Physics - Phenomenologytext