Model calculations of doubly closed shell nuclei in CBF theory .3. jj coupling 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, Central semirealistic interactions are used. Ground-state energies, one-body densities, distribution functions and momentum distributions are calculated for C-12, O-16, Ca-40, Ca-48 and Pb-208 nuclei. The values of 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.