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- Devlin, M., et al.
(author)
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Superdeformation in 68Zn: Evidence for a New, Neutron-rich Island of Superdeformation in A~70 Nuclei
- 1999
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In: Physical Review Letters. - 1079-7114. ; 82, s. 5217-5220
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Journal article (peer-reviewed)abstract
- A superdeformed rotational structure is reported in the stable nucleus Zn-68. It has a transition quadrupole moment (Q(t)) of 2.5(-0.4)(+0.7) e b (beta(2) approximate to 0.4), as measured by the residual Doppler shift method. Theoretical calculations suggest that two different configurations are possible candidates for this band. One is built without h(11/2) neutrons, as seen in superdeformed bands in the A similar to 60 region, while the other involves one h(11/2) neutron in analogy with superdeformed bands in the A similar to 80 region. The second of these candidate configurations is preferred, thus establishing a new, neutron-rich (relative to the line of beta stability) region of superdeformation with Z similar to 30 and N similar to 38.
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3. |
- Afanasjev, A. V., et al.
(author)
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Comparative study of superdeformed and highly deformed bands in the [Formula Presented] mass region
- 1999
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In: Physical Review C - Nuclear Physics. - 0556-2813. ; 59:6, s. 3166-3171
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Journal article (peer-reviewed)abstract
- Superdeformed and highly deformed rotational bands in the [Formula Presented] mass region are studied within cranked relativistic mean field theory and the configuration-dependent cranked Nilsson-Strutinsky approach. Both approaches describe the experimental data well. Low values of the dynamic moments of inertia [Formula Presented] compared with the kinematic moments of inertia [Formula Presented] seen both in experiment and in calculations at high rotational frequencies indicate the high energy cost to build the states at high spin and reflect the limited angular momentum content in these configurations.
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