2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/171978We update and compare the capabilities of the purely leptonic mode B --> tau nu and the semileptonic mode B --> D tau nu in the search for a charged Higgs boson.5 pages, parallel talk given at the 34th International Conference on High Energy Physics (ICHEP08), 29 July - 5 August 2008, Philadelphia, USAHigh Energy Physics - Phenomenologytext