2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/43508The weak mixing angle measured in neutrino scattering differs from the world average of other measurements by about 3 sigma. I discuss QCD corrections of perturbative and nonperturbative (parton structure) origin to the underlying neutrino observables.4 pages, talk presented at XXXIXth Rencontres de MoriondHigh Energy Physics - Phenomenologytext