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Some new aspects of the shape coexistence in the A = 70 mass region

1990

17 pages

Published in:

Nucl.Phys.A 517 (1990) 108-124

Published: 1990

DOI:

10.1016/0375-9474(90)90263-L

View in:

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Abstract: (Elsevier)

The shape coexistence phenomena dominating the structure of the nucleus 68 Ge are reinvestigated by taking the dominant correlations on top of the symmetry-projected quasiparticle mean-field solutions of the earlier EXCITED VAMPIR description into account. It turns out that in spite of some quantitative changes the main qualitative features of the older description like, e.g., the occurrence of multiple band structures, the coexistence of many differently deformed configurations, the high level density for medium and high spin values, and the corresponding complex feeding pattern do persist. Qualitatively these features are confirmed by recent experimental data. In addition an EXCITED VAMPIR description of the positive-parity states with even angular momenta in the nucleus 70 Se is reported. The results for this nucleus are besides a few peculiarities qualitatively rather similar to those of our earlier calculations for the nucleus 72 Se.

References(21)

Figures(0)

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