2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/224825We report measurements of the CKM angles beta/phi_1 and alpha/phi_2 done by the BABAR and Belle experiments. Both experiments have collected large data samples, corresponding to a total of more than 1 billion of BBbar pairs, at the e^+e^- asymmetric-energy colliders PEP-II (SLAC) and KEK-B (KEK), respectively.6 pages, 1 postscript figure, contributed to the Proceedings of Heavy Quarks and Leptons, Melbourne, 2008High Energy Physics - Experimenttext