Abstract
Shell-model calculations on positive- and negative-parity states have been performed for the p-shell nuclei. The model space includes all. 0ħω and 1ħω harmonic-oscillator basis states. The matrix elements of the two-body interaction and the harmonic-oscillator size parameter are assumed to be mass independent and determined empirically from a fit to experimental energy levels. The interaction is required to satisfy translational invariance. The single-particle energies are compatible with this requirement. In the present calculations the spurious states are isolated exactly from the nonspurious states. Resulting calculated spectra and electromagnetic properties (E1, E2, E3, M1, M2) are compared with experimental data.
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