2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/101381The correlation between the thickness of the neutron skin in Pb-208, and the degree of isospin diffusion in heavy-ion collisions is examined. The same equation of state is used to compute the degree of isospin diffusion in an isospin-depedent transport model and the neutron skin thickness in the Hartree-Fock approximation. We find that skin thicknesses less than 0.15 fm are excluded by the isospin diffusion data.5 pages, 4 figures; few minor corrections and updates; version to appear in PRCNuclear TheoryAstrophysicsNuclear Experimenttext