Phys. Rev. C 67, 064311 (2003) [8 pages]γ vibrational band and quasiparticle excitations in 80SrReceived 24 January 2003; published 25 June 2003 Non-yrast states in 80Sr were populated in the 24Mg(58Ni,2p)80Sr reaction at 200 MeV and their γ decays investigated using Gammasphere, in order to investigate shape softness and quasiparticle excitations. A large data set was collected which was A and Z gated, using the Argonne Fragment Mass Analyzer and a focal plane ion chamber. The excellent channel selection enhanced the sensitivity to energetically nonfavored configurations. Several new rotational bands were found, and many conflicts between previous experiments were resolved. In particular, the gamma vibrational band is now clearly delineated, and more than ten quasiparticle bandheads have been identified. At the highest spins, evidence for a long-predicted shape change was found. © 2003 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevC.67.064311
DOI:
10.1103/PhysRevC.67.064311
PACS:
23.20.En, 23.20.Lv, 21.10.Hw, 27.50.+e
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