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

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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].


  • C. H. Yu
  • C. Baktash
  • J. Dobaczewski
  • J. A. Cameron
  • C. Chitu
  • M. Devlin
  • J. Eberth
  • A. Galindo-Uribarri
  • D. S. Haslip
  • D. R. LaFosse
  • T. J. Lampman
  • I. Y. Lee
  • F. Lerma
  • A. O. Macchiavelli
  • S. D. Paul
  • D. C. Radford
  • D. G. Sarantites
  • C. E. Svensson
  • J. C. Waddington
  • J. N. Wilson
External organisations
  • External Organization - Unknown
Research areas and keywords

Subject classification (UKÄ) – MANDATORY

  • Subatomic Physics
Original languageEnglish
Article number031305(R)
JournalPhysical Review C (Nuclear Physics)
Issue number3
Publication statusPublished - 1999
Publication categoryResearch

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