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

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

Research output: Contribution to journal › Article › peer-review

Abstract

Excited states have been identified in the very neutron-deficient ¹¹⁹Ba nucleus. Two bands have been observed, which are likely to be based on h_11/2 and (g_7/2d_5/2) 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 (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 ¹¹⁹Ba are discussed within the framework of cranked Woods-Saxon and Nilsson-Strutinsky calculations.

Original language	English
Article number	044329
Pages (from-to)	443291-4432910
Number of pages	3989620
Journal	Physical Review C - Nuclear Physics
Volume	61
Issue number	4
Publication status	Published - Apr 2000

Cite this

Smith, J. F., Chiara, C. J., Fossan, D. B., Lane, G. J., Sears, J. M., Thorslund, I., Amro, H., Davids, C. N., Janssens, R. V. F., Seweryniak, D., Hibbert, I. M., Wadsworth, R., Lee, I. Y., Macchiavelli, A. O., Afanasjev, A. V., & Ragnarsson, I. (2000). Identification of excited states in ¹¹⁹Ba. Physical Review C - Nuclear Physics, 61(4), 443291-4432910. Article 044329.

@article{38f56bea63b54539bff23d018a9840aa,

title = "Identification of excited states in 119Ba",

abstract = "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.",

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

year = "2000",

month = apr,

language = "English",

volume = "61",

pages = "443291--4432910",

journal = "Physical Review C - Nuclear Physics",

issn = "0556-2813",

publisher = "American Physical Society",

number = "4",

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TY - JOUR

T1 - Identification of excited states in 119Ba

AU - Smith, J. F.

AU - Chiara, C. J.

AU - Fossan, D. B.

AU - Lane, G. J.

AU - Sears, J. M.

AU - Thorslund, I.

AU - Amro, H.

AU - Davids, C. N.

AU - Janssens, R. V.F.

AU - Seweryniak, D.

AU - Hibbert, I. M.

AU - Wadsworth, R.

AU - Lee, I. Y.

AU - Macchiavelli, A. O.

AU - Afanasjev, A. V.

AU - Ragnarsson, I.

PY - 2000/4

Y1 - 2000/4

N2 - 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.

AB - 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.

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M3 - Article

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VL - 61

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EP - 4432910

JO - Physical Review C - Nuclear Physics

JF - Physical Review C - Nuclear Physics

IS - 4

M1 - 044329

ER -

Identification of excited states in 119Ba

Abstract

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Identification of excited states in ¹¹⁹Ba