Phys. Rev. C 72, 054309 (2005) [12 pages]Spectroscopy of 90Nb at high spinReceived 3 November 2004; revised 1 August 2005; published 16 November 2005 Excited states of 90Nb were investigated via prompt and delayed γ decays and the recoil-isomer tagging technique. The level scheme of 90Nb has been extended up to J=19ℏ and Ex=8.4 MeV. Half-lives of the 11- and 17/2- isomeric levels in 90,91Nb were measured to be 0.47±0.01 and 3.3±0.4 μs, respectively. The results are compared with the predictions of large-basis shell model calculations. The effects of truncation of the valence model space on the calculated results are discussed. © 2005 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevC.72.054309
DOI:
10.1103/PhysRevC.72.054309
PACS:
27.60.+j, 23.20.Lv, 21.10.Tg, 21.60.Cs
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