Lifetimes of superdeformed rotational states in Ar-36 - art. no. 061301

Citation
Ce. Svensson et al., Lifetimes of superdeformed rotational states in Ar-36 - art. no. 061301, PHYS REV C, 6306(6), 2001, pp. 1301
Citations number
38
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Physics
Journal title
PHYSICAL REVIEW C
ISSN journal
0556-2813 → ACNP
Volume
6306
Issue
6
Year of publication
2001
Database
ISI
SICI code
0556-2813(200106)6306:6<1301:LOSRSI>2.0.ZU;2-G
Abstract
Lifetimes have been measured in a superdeformed rotational band recently id entified in the N=Z nucleus Ar-36. A large low-spin quadrupole deformation (beta (2) = 0.46 +/- 0.03) is confirmed and a decrease in the collectivity is observed as the high-spin band termination at I-pi = 16(+) is approached . Detailed comparisons of the experimental B(E2) values with the results of cranked Nilsson-Strutinsky and large-scale (s(1/2)d(3/2))-pf spherical she ll model calculations indicate the need for a more refined treatment of tra nsition matrix elements close to termination in the former, and the inclusi on of the complete sd-pf model space in the latter description of this high ly-collective rotational band.