2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/179981This paper reviews the status of searches and measurements of Bu leptonic decays, concentrating on the most recent results obtained at B-factories. We will describe studies of decays of the type B+ -> ell+ nu and B+ -> ell+ nu gamma.Flavor Physics & CP Violation Conference, Bled, 2007High Energy Physics - Experimenttext