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Lifetimes of superdeformed rotational states in 36Ar

Svensson, C. E. LU ; Macchiavelli, A. O. ; Juodagalvis, A. LU ; Poves, A. ; Ragnarsson, I. LU ; Åberg, S. LU ; Appelbe, D. E. ; Austin, R. A.E. ; Ball, G. C. and Carpenter, M. P. , et al. (2001) In Physical Review C - Nuclear Physics 63(6). p.613011-613015
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... (More)

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.

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publishing date
type
Contribution to journal
publication status
published
subject
in
Physical Review C - Nuclear Physics
volume
63
issue
6
article number
061301
pages
5 pages
publisher
American Physical Society
external identifiers
  • scopus:14344280998
ISSN
0556-2813
language
English
LU publication?
yes
id
c729aff6-6c44-4e98-933b-e7b1431b4ebf
date added to LUP
2023-12-08 16:46:18
date last changed
2024-04-07 08:05:56
@article{c729aff6-6c44-4e98-933b-e7b1431b4ebf,
  abstract     = {{<p>Lifetimes have been measured in a superdeformed rotational band recently identified in the N = Z nucleus <sup>36</sup>Ar. A large low-spin quadrupole deformation (β<sub>2</sub>=0.46±0.03) is confirmed and a decrease in the collectivity is observed as the high-spin band termination at I<sup>π</sup>=16<sup>+</sup> is approached. Detailed comparisons of the experimental B(E2) values with the results of cranked Nilsson-Strutinsky and large-scale (s<sub>1/2</sub>d<sub>3/2</sub>)-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.</p>}},
  author       = {{Svensson, C. E. and Macchiavelli, A. O. and Juodagalvis, A. and Poves, A. and Ragnarsson, I. and Åberg, S. and Appelbe, D. E. and Austin, R. A.E. and Ball, G. C. and Carpenter, M. P. and Caurier, E. and Clark, R. M. and Cromaz, M. and Deleplanque, M. A. and Diamond, R. M. and Fallon, P. and Janssens, R. V.F. and Lane, G. J. and Lee, I. Y. and Nowacki, F. and Sarantites, D. G. and Stephens, F. S. and Vetter, K. and Ward, D.}},
  issn         = {{0556-2813}},
  language     = {{eng}},
  number       = {{6}},
  pages        = {{613011--613015}},
  publisher    = {{American Physical Society}},
  series       = {{Physical Review C - Nuclear Physics}},
  title        = {{Lifetimes of superdeformed rotational states in <sup>36</sup>Ar}},
  volume       = {{63}},
  year         = {{2001}},
}