2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/186136Corrections of 10-30% for backgrounds to the H --> WW --> l^+l^-\sla{p}_T search in vector boson and gluon fusion at the LHC are reviewed to make the case for precise and accurate theoretical background predictions.9 pages, 4 figures. Invited talk at the ``Physics at LHC'' Conference, Cracow, Poland, July 3-8, 2006High Energy Physics - Phenomenologytext