2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/40065Some recent results of lattice QCD calculations which are relevant for the phenomenology of the Standard Model are reviewed. They concern the lattice determinations of quark masses, studies of K-Kbar and B-Bbar mixings, and a prediction of the B_s-mesons lifetime difference. The results of a recent analysis of the CKM unitarity triangle, which is mostly based on the lattice calculations of the relevant hadronic matrix elements, are also presented.15 pages, 5 figures. Invited talk at the XX Physics in Collision Conference, June 29 - July 1 2000, Lisbon, PortugalHigh Energy Physics - PhenomenologyHigh Energy Physics - Latticetext