MODEL-CALCULATIONS OF DOUBLY CLOSED-SHELL NUCLEI IN CBF THEORY .3. JJCOUPLING AND ISOSPIN DEPENDENCE

Correlated basis function theory and Fermi hypernetted chain technique are extended to study medium-heavy, doubly closed shell nuclei in the jj coupling scheme, with different single-particle wave functions for protons and neutrons and isospin-dependent two-body correlations, Cen tral semirealistic interactions are used. Ground-state energies, one-b ody densities, distribution functions and momentum distributions are c alculated for C-12, O-16, Ca-40, Ca-48 and Pb-208 nuclei. The values o f the ground-state energies provided by isospin-dependent correlations are significantly lower than those obtained with isospin-independent correlations. In finite nuclear systems, the two-body Euler equations provide correlation functions variationally more effective than those obtained with the same technique in infinite nuclear matter.