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

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Sammanfattning

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.

Originalspråk	engelska
Artikelnummer	044329
Tidskrift	Physical Review C - Nuclear Physics
Volym	61
Nummer	4
Status	Published - 2000 apr.

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@article{bcd2750d329b4b118fa0de86398977c1,

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",

journal = "Physical Review C - Nuclear Physics",

issn = "0556-2813",

publisher = "American Physical Society",

number = "4",

}

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

AN - SCOPUS:12944253055

SN - 0556-2813

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JO - Physical Review C - Nuclear Physics

JF - Physical Review C - Nuclear Physics

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