2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/41695In this talk I report recent results on hadronic B decays obtained with the QCD factorization approach. In the first part I update the fit of the Wolfenstein parameters (\barρ,\barη) to CP-averaged B -> pi pi, pi K branching fractions, and give the correlation between the time-dependent and direct CP asymmetry in B_d -> pi^+pi^- decay. In the second part I present an investigation of B decays into final states containing an eta or eta^\prime meson. I discuss the new theoretical issues that arise for flavour singlet mesons and present preliminary numerical results that appear to reproduce the pattern of experimental data reasonably well.8 pages, LaTeX, Talk presented at Flavor Physics and CP Violation (FPCP), Philadelphia, U.S.A., 16-18 May 2002High Energy Physics - Phenomenologytext