Identification of excited states in 119Ba

J. F. Smith*, C. J. Chiara, D. B. Fossan, G. J. Lane, J. M. Sears, I. Thorslund, H. Amro, C. N. Davids, R. V.F. Janssens, D. Seweryniak, I. M. Hibbert, R. Wadsworth, I. Y. Lee, A. O. Macchiavelli, A. V. Afanasjev, I. Ragnarsson

*Corresponding author for this work

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Excited states have been identified in the very neutron-deficient 119Ba nucleus. Two bands have been observed, which are likely to be based on h11/2 and (g7/2d5/2) neutron orbitals. Despite this being the first observation of excited states in 119Ba, the bands extend to (75/2)ℏ and (79/2)ℏ, respectively. The bands have been assigned to 119Ba using gamma-recoil and gamma-x-ray coincidences. Several quasiparticle alignments have been identified, involving neutron (h11/2)2 and proton (h11/2)2 aligned configurations. Furthermore, the bands show features which are reasonably consistent with smooth band termination at high spin. Theoretical results for 119Ba are discussed within the framework of cranked Woods-Saxon and Nilsson-Strutinsky calculations.

Original languageEnglish
Article number044329
Pages (from-to)443291-4432910
Number of pages3989620
JournalPhysical Review C - Nuclear Physics
Issue number4
Publication statusPublished - Apr 2000

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