Physics – Nuclear Physics – Nuclear Theory
Scientific paper
1993-08-23
Nucl.Phys. A571 (1994) 467-517
Physics
Nuclear Physics
Nuclear Theory
63 pages (LaTeX, to be published in Nucl. Phys. A)
Scientific paper
Energy levels and electromagnetic properties of with $N=28\sim 30$ nuclides are studied in terms of a large-scale shell model calculation, which contains no newly adjusted parameters. The Kuo-Brown $G$-matrix interaction is shown to reproduce energy levels of 205 low-lying states of these nuclei. We evaluate effective charges by incorporating the core-polarization effects caused by the coupling to GQR's. We then compute E2 moments and transition probabilities. The M1 moments and transition rates are calculated by quoting the effective $g$-factors of Towner, which are obtained by taking into account the meson-exchange and the core-polarization mechanisms. By this microscopic calculation most of the E2 properties and the magnetic moments are reproduced. Although there are agreements and disagreements in the M1 transition rates, the general tendency is reproduced. The $(e,e')$ and $(p,p')$ excitation from the ground state to some low-lying $2^+$ states is also discussed.
Nakada Hitoshi
Otsuka Takaharu
Sebe Takashi
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