Structure of the doubly midshell nucleus66170Dy104 | Zendy

P. H. Regan | Zendy; F. R. Xu | Zendy; P. M. Walker | Zendy; M. Oi | Zendy; A. K. Rath | Zendy; P. D. Stevenson | Zendy

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Structure of the doubly midshell nucleus66170Dy104

Author(s) -

P. H. Regan,

F. R. Xu,

P. M. Walker,

M. Oi,

A. K. Rath,

P. D. Stevenson

Publication year - 2002

Publication title -

physical review c

Language(s) - English

Resource type - Journals

eISSN - 1089-490X

pISSN - 0556-2813

DOI - 10.1103/physrevc.65.037302

Subject(s) - physics , valence (chemistry) , atomic physics , quasiparticle , ground state , angular momentum , condensed matter physics , quantum mechanics , superconductivity

Potentional energy surface calculations for the doubly midshell nucleus 66 Dy104 support a variety of extreme properties. The ground-state deformation is among the largest in the region, consistent with it having the maximal value of valence particles for any nucleus below the Pb doubly closed shell. The energy minimum is found to be remarkably constant in the ( b2 ,g) plane as a function of angular momentum. The nucleus is predicted to undergo a dual alignment with midshell highj protons and neutrons aligning simultaneously at spin '14\. Configuration-constrained calculations for the two-quasiparticle configurations predict the presence of a low-lyingK56 state with a similar axially symmetric shape to the highly deformed ground state.

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