2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/81511Employing hamiltonians defined by two-body embedded Gaussian orthogonal ensemble of random matrices(EGOE(2)) plus a mean-field producing one-body part, strength functions (for states defined by the one-body part) are constructed for various values of the strength of the chaos generating two-body part. Numerical calculations for six and seven fermion systems clearly demonstrate Breit-Wigner to Gaussian transition, in the chaotic domain, in strength functions as found earlier in nuclear shell model and Lipkin-Meshkov-Glick model calculations.7 pages, 2 figures, submitted to Phys. Rev. CNuclear TheoryChaotic Dynamicstext