Elsevier

Nuclear Physics A

Volume 241, Issue 1, 31 March 1975, Pages 79-108
Nuclear Physics A

Microscopic structure and integral properties of nuclear hole states in the continuum shell-model approach

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Abstract

The structure of hole states as they are observed in direct nucleon removal processes is investigated in the continuum shell-model approach to the hole spectral function. Both microscopic and integral properties of hole states are studied. The rôle of target ground-state correlations is considered in some detail. Calculations of the spectral function have been performed using a hybrid model in which ground-state correlations are included in second order, whereas correlations in the residual nucleus are treated by exact diagonalization in a configuration space restricted to 1h and 1p-2h states. The effect of a variation of single-particle energies and two-body interaction parameters has been examined. Integral quantities, like shell-model occupation probabilities, mean removal energies and spreading widths, are studied and computed from the microscopically calculated spectral function. The results are discussed in the light of presently available experimental data.

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