2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/186767Future neutrino oscillation measurement focus, at first priority, on the discovery of sin^2(2 theta_13) describing the coupling between solar and atmospheric oscillations. In this talk, we briefly discuss the prospects to measure sin^2(2 theta_13) by future reactor and beam experiments, and we illustrate the usefulness of these measurements (and their precision) from the theoretical point of view with an example.7 pages, 2 figures. Talk given at Matter to the deepest 2007High Energy Physics - Phenomenologytext