2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/214794In this paper we propose an improvement of the EKS nuclear parton distributions for the small x region of high energy processes, where the perturbative high parton density effects cannot be disregarded. We analyze the behavior of the ratios $xG_A/xG_N$ and $F_2^A/F_2^D$ and verify that at small x they are strongly modified when compared to the EKS predictions. The implications of our results for the heavy ion collisions in RHIC and LHC are discussed.16 pages, 2 figuresHigh Energy Physics - Phenomenologytext