Shell-model plus Hartree-Fock calculations for the neutron-rich Ca isotopes

Brown B.A. ; Richter W.A. (1998)


A new method is developed to combine the large-basis shell-model and Hartree-Fock methods. The Hartree-Fock method is used to obtain the absolute uncorrelated binding energies, a starting set of single-particle energies, and the single-particle radial wave functions. The shell model Hamiltonian is modified to remove the monopole terms and these are replaced by Hartree-Fock single-particle energies. The shell model is then used to calculate the ground-state correlation energy and the excited state spectrum. Applications are made to the nuclei 47-60Ca. A detailed comparison is made for 48Ca including the electron scattering data for 48Ca.

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