Phys. Rev. C 71, 034311 (2005) [13 pages]High-spin rotational structures in 76KrReceived 22 November 2004; published 17 March 2005 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 multidetector arrays. The ground-state band and two signature-split negative parity bands of 76Kr have been extended to ~30ℏ. Lifetime measurements using the Doppler-shift attenuation method show that the transition quadrupole moment of these three bands decrease as they approach their maximum-spin states. Two signatures of a new rotational structure with remarkably rigid rotational behavior have been identified. The high-spin properties of these rotational bands are analyzed within the framework of configuration-dependent cranked Nilsson-Strutinsky calculations. © 2005 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevC.71.034311
DOI:
10.1103/PhysRevC.71.034311
PACS:
21.60.Ev, 27.50.+e, 21.10.Re, 21.10.Tg
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