2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/182107In the present work the so-called Higher Tamm-Dancoff Apporximation method is presented for the generalized case of isovector and isoscalar residual interactions treated simultaneously. The role of different particle-hole excitations and of proton-neutron pairing correlations in the ground state of the self-conjugate 64Ge nucleus is discussed.LaTeX, 9 pages, 2 eps figuresNuclear Theorytext