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Open Access Publications from the University of California

Lifetimes of high-spin states in76Kr

  • Author(s): Valiente-Dobón, JJ
  • Svensson, CE
  • O'Leary, CD
  • Ragnarsson, I
  • Andreoiu, C
  • Austin, RAE
  • Carpenter, MP
  • Dashdorj, D
  • Finlay, P
  • Freeman, SJ
  • Garrett, PE
  • Görgen, A
  • Greene, J
  • Grinyer, GF
  • Hyland, B
  • Jenkins, D
  • Johnston-Theasby, F
  • Joshi, P
  • Kelsall, NS
  • Macchiavelli, AO
  • Moore, F
  • Mukherjee, G
  • Phillips, AA
  • Reviol, W
  • Sarantites, D
  • Schumaker, MA
  • Seweryniak, D
  • Smith, MB
  • Wadsworth, R
  • Ward, D
  • et al.

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High-spin states in 3676Kr40 have been populated in the 40Ca(40Ca,4p)76Kr fusion-evaporation reaction at a beam energy of 165 MeV, and studied using the GAMMASPHERE and MICROBALL multi-detector arrays. The ground-state band and two signature-split negative-parity bands of 76Kr have been extended to ∼30hℏ. Lifetime measurements using the Doppler-shift attenuation method indicate that the transition quadrupole moment of these three bands decrease as they approach their maximum-spin states.

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