2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/140979We present recent results on leptonic B decays using data collected by the BaBar detector at the PEP-II asymmetric-energy e+e- collider at the Stanford Linear Accelerator Center. We report searches for the B -> tau nu decay, based on two statistically independent data samples.4 pages, 3 eps figures, Submitted for the SUSY07 proceedingsHigh Energy Physics - Experimenttext