The decay of the highly deformed (HD) band in the nucleus 137Nd has been studied with the GASP array using the reactions 110Pd+30Si and 123Sb+19F. Four decay paths linking the HD band to the normal-deformed states have been established, which fix Iπ=29/2+ for the lowest state of the HD band lying at Ex=4885 keV. The sudden disappearance, at the low spin side, of the HD bands in the 133,135,137Nd isotopes can be explained by total Routhian surface calculations through a change of the nuclear shape which is microscopically related to the transfer of the valence neutron from a N=6 to a N=4 Nilsson orbital.
Decay out of the highly deformed bands in the odd Nd isotopes: The Nd137 nucleus
LUNARDI, SANTO;VENTURELLI, ROBERTO;
1995
Abstract
The decay of the highly deformed (HD) band in the nucleus 137Nd has been studied with the GASP array using the reactions 110Pd+30Si and 123Sb+19F. Four decay paths linking the HD band to the normal-deformed states have been established, which fix Iπ=29/2+ for the lowest state of the HD band lying at Ex=4885 keV. The sudden disappearance, at the low spin side, of the HD bands in the 133,135,137Nd isotopes can be explained by total Routhian surface calculations through a change of the nuclear shape which is microscopically related to the transfer of the valence neutron from a N=6 to a N=4 Nilsson orbital.
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