2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/48324The evolution of the EMC effect as a function of atomic mass $A$ is considered for the first time for the lightest nuclei, D, $^3H$, $^3He$ and $^4He$, with an approach based on the Bethe-Salpeter formalism. We show that the pattern of the oscillation of the ratio $r^A(x) = F_2^A/F_2^N(D)$ varies with $A$, unlike the pattern for nuclei with masses $A > 4$, where only the amplitude of the oscillation changes.7 pages (LaTeX) including 2 figures (postscript encapsulated). Contributed Paper at the International Nuclear Physics Conference INPC-98, August 24-28, 1998, Paris, France, Abstracts of Contributed Papers, Vol.1, p. 184High Energy Physics - PhenomenologyNuclear Theorytext