2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/41686Recent results obtained from B decays on the phases of weak couplings described by the Cabibbo-Kobayashi-Maskawa (CKM) matrix are discussed, with particular emphasis on $α$ and $γ= π- β- α$.4 pages, LaTeX, no figures, to appear in proceedings of CERN CKM Workshop, 13-16 February 2002. Revised LaTeX definitions; typo correctedHigh Energy Physics - Phenomenologytext