Physics – Nuclear Physics – Nuclear Theory
Scientific paper
1997-12-30
Phys.Rev.C57:1668-1680,1998
Physics
Nuclear Physics
Nuclear Theory
35 pages (LateX) + 3 figures. Phys.Rev.C, in press
Scientific paper
10.1103/PhysRevC.57.1668
The ground state properties of N=Z doubly closed shell nuclei are studied within correlated basis function theory. A truncated version of the Urbana v14 realistic potential, with spin, isospin and tensor components, is adopted, together with state dependent correlations. Fermi hypernetted chain integral equation and single operator chain approximation are used to evaluate density, distribution function and ground state energy of 16O and 40Ca. The results favourably compare with the available, variational MonteCarlo estimates and provide a first substantial check of the accuracy of the cluster summation method for state dependent correlations. We achieve in finite nuclei at least the same level of accuracy in the treatment of non central interactions and correlations as in nuclear matter. This opens the way for a microscopic study of medium heavy nuclei ground state using present days realistic hamiltonians.
Co' Giampaolo
de Saavedra Arias F.
Fabrocini Adelchi
Folgarait P.
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