Identification of excited states in 119Ba -: art. no. 044329

被引：8
|
作者：
Smith, JF [1 ]
Chiara, CJ
Fossan, DB
Lane, GJ
Sears, JM
Thorslund, I
Amro, H
Davids, CN
Janssens, RVF
Seweryniak, D
Hibbert, IM
Wadsworth, R
Lee, IY
Macchiavelli, AO
Afanasjev, AV
Ragnarsson, I
机构：
[1] Univ Manchester, Schuster Lab, Manchester M13 9PL, Lancs, England
[2] SUNY Stony Brook, Dept Phys & Astron, Stony Brook, NY 11794 USA
[3] Argonne Natl Lab, Argonne, IL 60439 USA
[4] Univ York, Dept Phys, York YO1 5DD, N Yorkshire, England
[5] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Nucl Sci, Berkeley, CA 94720 USA
[6] Latvian State Univ, Inst Solid State Phys, Lab Radiat Phys, LV-2169 Salaspils, Latvia
[7] Tech Univ Munich, Dept Phys T30, D-85748 Garching, Germany
[8] Lund Inst Technol, Dept Math Phys, S-22100 Lund, Sweden
来源：
PHYSICAL REVIEW C | 2000年 / 61卷 / 04期
关键词：
D O I：
10.1103/PhysRevC.61.044329
中图分类号：
O57 [原子核物理学、高能物理学];
学科分类号：
070202 ;
摘要：
Excited states have been identified in the very neutron-deficient Ba-119 nucleus. Two bands have been observed, which are likely to be based on h(11/2) and (g(7/2)d(5/2)) neutron orbitals. Despite this being the first observation of excited states in Ba-119, the bands extend to (75/2)(h) over bar and (79/2)(h) over bar, respectively. The bands have been assigned to Ba-119 using gamma-recoil and gamma-x-ray coincidences. Several quasiparticle alignments have been identified. involving neutron (h(11/2))(2) and proton (h(11/2))(2) aligned configurations. Furthermore, the bands show features which are reasonably consistent with smooth band termination at high spin. Theoretical results for Ba-119 are discussed within the framework of cranked Woods-Saxon and Nilsson-Strutinsky calculations.
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页数：10
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