2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/190279In a recent paper Yang and Bodek extracted the free neutron structure function at large x by extrapolating the density dependence of the nuclear EMC ratios to the deuteron. We clarify why this approach is ill-defined for light nuclei, and introduces a large theoretical bias into the extraction of F_2n at large x.3 pages, 1 figure, REVTeX, discussion expanded to clarify original criticisms of nuclear density extrapolation to the deuteronHigh Energy Physics - ExperimentHigh Energy Physics - PhenomenologyNuclear ExperimentNuclear Theorytext