The deformation producing tendency of (d 3/2−f 7/2) empirical effective interaction |
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Authors: | D P Ahalpara K H Bhatt |
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Affiliation: | (1) Physical Research Laboratory, 380009 Ahmedabad |
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Abstract: | The effective matrix elements in (d 3/2−f 7/2)2 configuration have been recently defined by Erskineet al. and Sherret al. assuming shell clcsures for S32 and Ca40. We have attempted to verify whether this empirically deduced (d 3/2−f 7/2)2 interaction permits thed 3/2 shell to remain closed when nucleons are added to Ca40. It is found that the Erskine interaction gives rise to ground states of thef 7/2 shell nuclei in which thed 3/2 orbit is completely filled. However that interaction over-binds Ca40. If the centroid of the (d 3/2)2 interaction is modified to fit the Ca40 binding energy, the ground states of Cr48 and Fe52 become deformed and thed 3/2 orbit is not completely filled. |
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Keywords: | Empirical interaction Hartree-Fock model spherical and deformed states |
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