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Isospin and Deformation Studies in the Odd-odd N = Z Nucleus 54Co

Rudolph, Dirk LU ; Andersson, Lise-Lotte LU ; Bengtsson, Ragnar LU ; Ekman, Jörgen LU ; Erten, O.; Fahlander, Claes LU ; Johansson, Emma LU ; Ragnarsson, Ingemar LU ; Andreoiu, Corina LU and Bentley, M. A., et al. (2010) In Physical Review C (Nuclear Physics) 82(5).
Abstract
High-spin states in the odd-odd N = Z nucleus Co-54 have been investigated by the fusion-evaporation reaction Si-28(S-32,1 alpha 1p1n)Co-54. Gamma-ray information gathered with the Ge detector array Gammasphere was correlated with evaporated particles detected in the charged particle detector system Microball and a 1 pi neutron detector array. A significantly extended excitation scheme of Co-54 is presented, which includes a candidate for the isospin T = 1, 6(+) state of the 1f(7/2)(-2) multiplet. The results are compared to large-scale shell-model calculations in the fp shell. Effective interactions with and without isospin-breaking terms have been used to probe isospin symmetry and isospin mixing. A quest for deformed high-spin... (More)
High-spin states in the odd-odd N = Z nucleus Co-54 have been investigated by the fusion-evaporation reaction Si-28(S-32,1 alpha 1p1n)Co-54. Gamma-ray information gathered with the Ge detector array Gammasphere was correlated with evaporated particles detected in the charged particle detector system Microball and a 1 pi neutron detector array. A significantly extended excitation scheme of Co-54 is presented, which includes a candidate for the isospin T = 1, 6(+) state of the 1f(7/2)(-2) multiplet. The results are compared to large-scale shell-model calculations in the fp shell. Effective interactions with and without isospin-breaking terms have been used to probe isospin symmetry and isospin mixing. A quest for deformed high-spin rotational cascades proved negative. This feature is discussed by means of cranking calculations. (Less)
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Physical Review C (Nuclear Physics)
volume
82
issue
5
publisher
American Physical Society
external identifiers
  • wos:000284205900002
  • scopus:79251486342
ISSN
0556-2813
DOI
10.1103/PhysRevC.82.054309
language
English
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yes
id
5e58011f-caf6-4d46-903f-9680bb3d71b2 (old id 1753002)
date added to LUP
2010-12-29 15:36:15
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2018-05-29 12:21:54
@article{5e58011f-caf6-4d46-903f-9680bb3d71b2,
  abstract     = {High-spin states in the odd-odd N = Z nucleus Co-54 have been investigated by the fusion-evaporation reaction Si-28(S-32,1 alpha 1p1n)Co-54. Gamma-ray information gathered with the Ge detector array Gammasphere was correlated with evaporated particles detected in the charged particle detector system Microball and a 1 pi neutron detector array. A significantly extended excitation scheme of Co-54 is presented, which includes a candidate for the isospin T = 1, 6(+) state of the 1f(7/2)(-2) multiplet. The results are compared to large-scale shell-model calculations in the fp shell. Effective interactions with and without isospin-breaking terms have been used to probe isospin symmetry and isospin mixing. A quest for deformed high-spin rotational cascades proved negative. This feature is discussed by means of cranking calculations.},
  articleno    = {054309},
  author       = {Rudolph, Dirk and Andersson, Lise-Lotte and Bengtsson, Ragnar and Ekman, Jörgen and Erten, O. and Fahlander, Claes and Johansson, Emma and Ragnarsson, Ingemar and Andreoiu, Corina and Bentley, M. A. and Carpenter, M. P. and Charity, R. J. and Clark, R. M. and Fallon, P. and Macchiavelli, A. O. and Reviol, W. and Sarantites, D. G. and Seweryniak, D. and Svensson, C. E. and Williams, S. J.},
  issn         = {0556-2813},
  language     = {eng},
  number       = {5},
  publisher    = {American Physical Society},
  series       = {Physical Review C (Nuclear Physics)},
  title        = {Isospin and Deformation Studies in the Odd-odd N = Z Nucleus 54Co},
  url          = {http://dx.doi.org/10.1103/PhysRevC.82.054309},
  volume       = {82},
  year         = {2010},
}