2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/192377We derive the contribution of $Δ$-h excitations to quasielastic charged-current neutrino-nucleus scattering in the framework of relativistic mean-field theory. We discuss the effect of $Δ$ production on the determination of the axial mass $M_A$ in neutrino scattering experiments.14 pages, revtex, 3 postscript figures (available upon request)Nuclear Theorytext