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Comparison of Superdeformed Bands in 61Zn and 60Zn: Possible Evidence for T=0 Pairing

Yu, C. H.; Baktash, C.; Dobaczewski, J.; Cameron, J. A.; Chitu, C.; Devlin, M.; Eberth, J.; Galindo-Uribarri, A.; Haslip, D. S. and LaFosse, D. R., et al. (1999) In Physical Review C (Nuclear Physics) 60(3).
Abstract
The yrast superdeformed band in Zn-61 has been established using Si-28(Ar-36, 2pn)Zn-61 and Ca-40(Si-29, 2 alpha)Zn-61 fusion-evaporation reactions. The excitation energy of this band was determined via two transitions that link this band to the normally deformed states. Lifetime analysis of this band resulted in a quadrupole moment of Q(t) = 3.0 +/- (0.5)(0.4)e b, which corresponds to a deformation of beta(2) = 0.50+/-(0.07)(0.06). A comparison of the J((2)) dynamical moments of inertia of the yrast superdeformed band in Zn-61 with those in Zn-60 shows a nearly complete blocking of the observed alignment in Zn-60, indicating that T=0 proton-neutron pair correlations may be present in Zn-60. [S0556-2813(99)51109-6].
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Physical Review C (Nuclear Physics)
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60
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3
publisher
American Physical Society
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0556-2813
DOI
10.1103/PhysRevC.60.031305
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English
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@article{307de923-3e50-488f-bd31-e0724cef60e9,
  abstract     = {The yrast superdeformed band in Zn-61 has been established using Si-28(Ar-36, 2pn)Zn-61 and Ca-40(Si-29, 2 alpha)Zn-61 fusion-evaporation reactions. The excitation energy of this band was determined via two transitions that link this band to the normally deformed states. Lifetime analysis of this band resulted in a quadrupole moment of Q(t) = 3.0 +/- (0.5)(0.4)e b, which corresponds to a deformation of beta(2) = 0.50+/-(0.07)(0.06). A comparison of the J((2)) dynamical moments of inertia of the yrast superdeformed band in Zn-61 with those in Zn-60 shows a nearly complete blocking of the observed alignment in Zn-60, indicating that T=0 proton-neutron pair correlations may be present in Zn-60. [S0556-2813(99)51109-6].},
  articleno    = {031305(R)},
  author       = {Yu, C. H. and Baktash, C. and Dobaczewski, J. and Cameron, J. A. and Chitu, C. and Devlin, M. and Eberth, J. and Galindo-Uribarri, A. and Haslip, D. S. and LaFosse, D. R. and Lampman, T. J. and Lee, I. Y. and Lerma, F. and Macchiavelli, A. O. and Paul, S. D. and Radford, D. C. and Rudolph, Dirk and Sarantites, D. G. and Svensson, C. E. and Waddington, J. C. and Wilson, J. N.},
  issn         = {0556-2813},
  language     = {eng},
  number       = {3},
  publisher    = {American Physical Society},
  series       = {Physical Review C (Nuclear Physics)},
  title        = {Comparison of Superdeformed Bands in 61Zn and 60Zn: Possible Evidence for T=0 Pairing},
  url          = {http://dx.doi.org/10.1103/PhysRevC.60.031305},
  volume       = {60},
  year         = {1999},
}