2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/181683We present a new way to define and compute the maximum significance achievable for signal and background processes at the LHC, using all available phase space information. As an example, we show that a light Higgs boson produced in weak--boson fusion with a subsequent decay into muons can be extracted from the backgrounds. The method, aimed at phenomenological studies, can be incorporated in parton--level event generators and accommodate parametric descriptions of detector effects for selected observables.7 pages, 2 figures, changes to wording and new references, published versionHigh Energy Physics - Phenomenologytext