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Collective rotational motion in the N=Z nucleus 36Ar

Svensson, C. E. ; Macchiavelli, A. O. ; Juodagalvis, A. LU ; Poves, A. ; Ragnarsson, I. LU ; Åberg, S. LU ; Appelbe, D. E. ; Austin, R. A.E. ; Baktash, C. and Ball, G. C. , et al. (2001) In Nuclear Physics A 682(1-4). p.1-11
Abstract

A superdeformed rotational band has been identified in the N = Z nucleus 36Ar, firmly linked to known low-spin states, and observed to its high-spin termination at Iπ = 16+. Lifetime measurements by the Doppler shift attenuation method establish a large low-spin deformation (β2 ≈ 0.46) and a decrease in the collectivity as the band approaches termination. Comparisons with cranked Nilsson-Strutinsky and large-scale spherical shell model calculations lead to a consistent description of the band based on a configuration in which four particles are promoted to the pf shell. With two major shells active for both protons and neutrons, yet a valence space dimension small enough to be approached from... (More)

A superdeformed rotational band has been identified in the N = Z nucleus 36Ar, firmly linked to known low-spin states, and observed to its high-spin termination at Iπ = 16+. Lifetime measurements by the Doppler shift attenuation method establish a large low-spin deformation (β2 ≈ 0.46) and a decrease in the collectivity as the band approaches termination. Comparisons with cranked Nilsson-Strutinsky and large-scale spherical shell model calculations lead to a consistent description of the band based on a configuration in which four particles are promoted to the pf shell. With two major shells active for both protons and neutrons, yet a valence space dimension small enough to be approached from the shell model perspective, this band offers an excellent opportunity to investigate the microscopic structure of collective rotational motion in nuclei.

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organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Nuclear Physics A
volume
682
issue
1-4
pages
11 pages
publisher
Elsevier
external identifiers
  • scopus:0035847759
ISSN
0375-9474
DOI
10.1016/S0375-9474(00)00615-1
language
English
LU publication?
yes
id
b65dc41b-870b-4542-90c5-f7b03ec71b1f
date added to LUP
2024-01-19 13:29:01
date last changed
2024-01-22 14:06:36
@article{b65dc41b-870b-4542-90c5-f7b03ec71b1f,
  abstract     = {{<p>A superdeformed rotational band has been identified in the N = Z nucleus <sup>36</sup>Ar, firmly linked to known low-spin states, and observed to its high-spin termination at I<sup>π</sup> = 16<sup>+</sup>. Lifetime measurements by the Doppler shift attenuation method establish a large low-spin deformation (β<sub>2</sub> ≈ 0.46) and a decrease in the collectivity as the band approaches termination. Comparisons with cranked Nilsson-Strutinsky and large-scale spherical shell model calculations lead to a consistent description of the band based on a configuration in which four particles are promoted to the pf shell. With two major shells active for both protons and neutrons, yet a valence space dimension small enough to be approached from the shell model perspective, this band offers an excellent opportunity to investigate the microscopic structure of collective rotational motion in nuclei.</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 Baktash, C. 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 Furlotti, M. and Galindo-Uribarri, A. and Janssens, R. V.F. and Lane, G. J. and Lee, I. Y. and Lipoglavsek, M. and Nowacki, F. and Paul, S. D. and Radford, D. C. and Sarantites, D. G. and Seweryniak, D. and Stephens, F. S. and Tomov, V. and Vetter, K. and Ward, D. and Yu, C. H.}},
  issn         = {{0375-9474}},
  language     = {{eng}},
  month        = {{02}},
  number       = {{1-4}},
  pages        = {{1--11}},
  publisher    = {{Elsevier}},
  series       = {{Nuclear Physics A}},
  title        = {{Collective rotational motion in the N=Z nucleus <sup>36</sup>Ar}},
  url          = {{http://dx.doi.org/10.1016/S0375-9474(00)00615-1}},
  doi          = {{10.1016/S0375-9474(00)00615-1}},
  volume       = {{682}},
  year         = {{2001}},
}