2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/192421An asymptotic restoration procedure is applied for analyzing bound--state overlap functions, separation energies and single--nucleon spectroscopic factors by means of a model one--body density matrix emerging from the Jastrow correlation method in its lowest order approximation for $^{16}O$ and $^{40}Ca$ nuclei . Comparison is made with available experimental data and mean--field and natural orbital representation results.5 pages, RevTeX style, to be published in Physical Review CNuclear Theorytext