2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/42915Current status of the computation of the neutral B-meson mixing amplitudes, with particular attention to the heavy-light meson decay constants, is reviewed. The values for these quantities, as well as for the coupling of the pion to the lowest doublet of heavy-light mesons, are given.11 pages, 6 figures, Invited talk at the Workshop on the CKM Unitarity Triangle, IPPP Durham, April 2003 [2 refs.added & a few typos corrected]High Energy Physics - PhenomenologyHigh Energy Physics - ExperimentHigh Energy Physics - Latticetext