[en] The effects of nucleon-nucleon correlations as a possible mechanism to explain recent experimental results on semi-inclusive deep inelastic scattering of neutrinos off nuclei are investigated. Events with slowly moving nucleons (dark tracks) produced in the primary neutrino-nucleus interaction are associated to the recoiling nucleon of a correlated pair, whereas events without dark tracks are ascribed to configurations in which the final nuclear system recoils coherently. The direct production of slow protons by diquark fragmentation, as a further source of dark tracks, is also analyzed. (orig.)