Identification of excited states in {sup 119}Ba

Journal Article · Sat Apr 01 04:00:00 EST 2000 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PhysRevC.61.044329· OSTI ID:20215894

Smith, J F ^[1]; Chiara, C J ^[1]; Fossan, D B ^[1]; Lane, G J ^[1]; Sears, J M ^[1]; Thorslund, I ^[1]; Amro, H ^[2]; Davids, C N ^[2]; Janssens, R V. F. ^[2]; Seweryniak, D ^[2]

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1. Department of Physics and Astronomy, State University of New York at Stony Brook, Stony Brook, New York 11794-3800 (United States)
2. Argonne National Laboratory, Argonne, Illinois 60439 (United States)

Excited states have been identified in the very neutron-deficient {sup 119}Ba nucleus. Two bands have been observed, which are likely to be based on h{sub 11/2} and (g{sub 7/2}d{sub 5/2}) neutron orbitals. Despite this being the first observation of excited states in {sup 119}Ba, the bands extend to (75/2)((Planck constant)/2{pi}) and (79/2)({Dirac_h}/2{pi}), respectively. The bands have been assigned to {sup 119}Ba using gamma-recoil and gamma-x-ray coincidences. Several quasiparticle alignments have been identified, involving neutron (h{sub 11/2}){sup 2} and proton (h{sub 11/2}){sup 2} aligned configurations. Furthermore, the bands show features which are reasonably consistent with smooth band termination at high spin. Theoretical results for {sup 119}Ba are discussed within the framework of cranked Woods-Saxon and Nilsson-Strutinsky calculations. (c) 2000 The American Physical Society.

• OSTI ID: 20215894
• Journal Information: Physical Review. C, Nuclear Physics, Journal Name: Physical Review. C, Nuclear Physics Journal Issue: 4 Vol. 61; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BARIUM 119
EXCITED STATES
EXPERIMENTAL DATA
GAMMA SPECTRA
HIGH SPIN STATES
THEORETICAL DATA
WOODS-SAXON POTENTIAL