2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/48776A way of circumventing the gauge and infrared problems with effective Wilson coefficients is shown. Implications of experimentally measured charmless $B$ decays are discussed.5 pages, 2 figures, talk presented at the DPF'99 Meeting, UCLA, January 5-9, 1999High Energy Physics - PhenomenologyHigh Energy Physics - Experimenttext