2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/164128We report recent measurements of the CKM angle phi_1/beta using large data samples collected by the Belle and BaBar experiments at the e^+ e^- asymmetric-energy colliders.Flavor Physics & CP Violation Conference, Taipei, 2008High Energy Physics - Experimenttext