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Fast rotation of the N = Z nucleus 36Ar

Svensson, O. E. ; Macchiavelli, A. O. ; Juodagalvis, A. LU ; Poves, A. ; Ragnarsson, I. LU ; Åberg, S. LU ; Appelee, D. E. ; Austin, R. A.E. ; Baktash, C. and Ball, G. G. , et al. (2001) International Research Conference- Nato Advanced Research Workshop-HIGH SPIN PHYSICS 2001 In Acta Physica Polonica B 32(9). p.2413-2422
Abstract

A highly-deformed rotational band has been identified in the N = Z nucleus 36Ar. At high spin the band is observed to its presumed termination at Iπ = 16+, while at low spin it has been firmly linked to previously known states in 36Ar. Spins, parities, and absolute excitation energies have thus been determined throughout the band. Lifetime measurements establish a large low-spin quadrupole deformation (β2 = 0.46 ±0.03) and indicate a decreasing collectivity as the band termination is approached. With effectively complete spectroscopic information and a valence space large enough for significant collectivity to develop, yet small enough to be meaningfully approached from the shell... (More)

A highly-deformed rotational band has been identified in the N = Z nucleus 36Ar. At high spin the band is observed to its presumed termination at Iπ = 16+, while at low spin it has been firmly linked to previously known states in 36Ar. Spins, parities, and absolute excitation energies have thus been determined throughout the band. Lifetime measurements establish a large low-spin quadrupole deformation (β2 = 0.46 ±0.03) and indicate a decreasing collectivity as the band termination is approached. With effectively complete spectroscopic information and a valence space large enough for significant collectivity to develop, yet small enough to be meaningfully approached from the shell model perspective, this rotational band in 36Ar provides many exciting opportunities to test and compare complementary models of collective motion in nuclei.

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publishing date
type
Contribution to journal
publication status
published
subject
in
Acta Physica Polonica B
volume
32
issue
9
pages
10 pages
publisher
Jagiellonian University, Cracow, Poland
conference name
International Research Conference- Nato Advanced Research Workshop-HIGH SPIN PHYSICS 2001
conference location
Warsaw, Poland
conference dates
2001-02-06 - 2001-02-10
external identifiers
  • scopus:33744497868
ISSN
0587-4254
language
English
LU publication?
no
id
fb2e7067-74ce-48cd-b73b-35b00d885995
date added to LUP
2024-01-19 13:13:28
date last changed
2024-01-22 16:05:10
@article{fb2e7067-74ce-48cd-b73b-35b00d885995,
  abstract     = {{<p>A highly-deformed rotational band has been identified in the N = Z nucleus <sup>36</sup>Ar. At high spin the band is observed to its presumed termination at I<sup>π</sup> = 16<sup>+</sup>, while at low spin it has been firmly linked to previously known states in <sup>36</sup>Ar. Spins, parities, and absolute excitation energies have thus been determined throughout the band. Lifetime measurements establish a large low-spin quadrupole deformation (β<sub>2</sub> = 0.46 ±0.03) and indicate a decreasing collectivity as the band termination is approached. With effectively complete spectroscopic information and a valence space large enough for significant collectivity to develop, yet small enough to be meaningfully approached from the shell model perspective, this rotational band in <sup>36</sup>Ar provides many exciting opportunities to test and compare complementary models of collective motion in nuclei.</p>}},
  author       = {{Svensson, O. E. and Macchiavelli, A. O. and Juodagalvis, A. and Poves, A. and Ragnarsson, I. and Åberg, S. and Appelee, D. E. and Austin, R. A.E. and Baktash, C. and Ball, G. G. 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         = {{0587-4254}},
  language     = {{eng}},
  number       = {{9}},
  pages        = {{2413--2422}},
  publisher    = {{Jagiellonian University, Cracow, Poland}},
  series       = {{Acta Physica Polonica B}},
  title        = {{Fast rotation of the N = Z nucleus 36Ar}},
  volume       = {{32}},
  year         = {{2001}},
}