Lifetimes of superdeformed rotational states in 36Ar
Abstract
Lifetimes have been measured in a superdeformed rotational band recently identified in the N=Z nucleus 36Ar. A large low-spin quadrupole deformation (β2=0.46+/-0.03) is confirmed and a decrease in the collectivity is observed as the high-spin band termination at Iπ=16+ is approached. Detailed comparisons of the experimental B(E2) values with the results of cranked Nilsson-Strutinsky and large-scale (s1/2d3/2)-pf spherical shell model calculations indicate the need for a more refined treatment of transition matrix elements close to termination in the former, and the inclusion of the complete sd-pf model space in the latter description of this highly-collective rotational band.
- Publication:
-
Physical Review C
- Pub Date:
- June 2001
- DOI:
- 10.1103/PhysRevC.63.061301
- Bibcode:
- 2001PhRvC..63f1301S
- Keywords:
-
- 21.10.Re;
- 21.10.Tg;
- 23.20.Lv;
- 27.30.+t;
- Collective levels;
- Lifetimes;
- gamma transitions and level energies;
- 20<
- =A<
- =38