2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/81627In order to incorporate the finite range effect into effective interactions, a modification of the Skyrme force by introducing a cut-off factor for high momentum transfers is proposed. The parameters of the cut-off factor are determined by fitting the microscopic in-medium cross-sections of Li and Machleidt over a wide range of energy and nuclear density. Results for the SkM* and SLy4 forces are presented.13 pages including 3 figuresNuclear Theorytext