First observation of very neutron-deficient 122Ce

J. F. Smith; C. J. Chiara; M. P. Carpenter; H. J. Chantler; P. T.W. Choy; C. N. Davids; M. Devlin; J. L. Durell; D. B. Fossan; S. J. Freeman; R. V.F. Janssens; N. S. Kelsall; T. Koike; D. R. LaFosse; E. S. Paul; P. Reiter; D. G. Sarantites; D. Seweryniak; K. Starosta; R. Wadsworth; A. N. Wilson; P. H. Heenen

doi:10.1016/j.physletb.2005.08.035

First observation of very neutron-deficient ¹²²Ce

J. F. Smith, C. J. Chiara, M. P. Carpenter, H. J. Chantler, P. T.W. Choy, C. N. Davids, M. Devlin, J. L. Durell, D. B. Fossan, S. J. Freeman, R. V.F. Janssens, N. S. Kelsall, T. Koike, D. R. LaFosse, E. S. Paul, P. Reiter, D. G. Sarantites, D. Seweryniak, K. Starosta, R. WadsworthA. N. Wilson, P. H. Heenen

研究成果: Article › 査読

7 被引用数 (Scopus)

抄録

Excited states have been identified in the very neutron-deficient ¹²²Ce nucleus. This is the first observation of this nucleus and its excited states. The ground-state rotational band has been observed up to spin 14 ℏ. The band has been assigned to ¹²²Ce by detecting gamma rays in coincidence with evaporated charged particles and neutrons. The E(2 ₁⁺) value suggests a rather large ground-state deformation of β₂ = 0.35, in good agreement with Hartree-Fock-Bogoliubov (HFB) mean-field calculations. The aligned angular momentum of the band has been studied and is compared with those of the neighboring even-even cerium isotopes, and to Woods-Saxon cranking calculations. The non-observation of the π(h_11/2)² alignment until at least 0.4 MeV/ℏ is consistent with the extracted value of β₂.

本文言語	English
ページ（範囲）	203-211
ページ数	9
ジャーナル	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
巻	625
号	3-4
DOI	https://doi.org/10.1016/j.physletb.2005.08.035
出版ステータス	Published - 2005 10月 13
外部発表	はい

ASJC Scopus subject areas

核物理学および高エネルギー物理学

文献へのアクセス

10.1016/j.physletb.2005.08.035

他のファイルとリンク

引用スタイル

Smith, J. F., Chiara, C. J., Carpenter, M. P., Chantler, H. J., Choy, P. T. W., Davids, C. N., Devlin, M., Durell, J. L., Fossan, D. B., Freeman, S. J., Janssens, R. V. F., Kelsall, N. S., Koike, T., LaFosse, D. R., Paul, E. S., Reiter, P., Sarantites, D. G., Seweryniak, D., Starosta, K., ... Heenen, P. H. (2005). First observation of very neutron-deficient ¹²²Ce. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 625(3-4), 203-211. https://doi.org/10.1016/j.physletb.2005.08.035

Smith, JF, Chiara, CJ, Carpenter, MP, Chantler, HJ, Choy, PTW, Davids, CN, Devlin, M, Durell, JL, Fossan, DB, Freeman, SJ, Janssens, RVF, Kelsall, NS, Koike, T, LaFosse, DR, Paul, ES, Reiter, P, Sarantites, DG, Seweryniak, D, Starosta, K, Wadsworth, R, Wilson, AN & Heenen, PH 2005, 'First observation of very neutron-deficient ¹²²Ce', Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, vol. 625, no. 3-4, pp. 203-211. https://doi.org/10.1016/j.physletb.2005.08.035

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title = "First observation of very neutron-deficient 122Ce",

abstract = "Excited states have been identified in the very neutron-deficient 122Ce nucleus. This is the first observation of this nucleus and its excited states. The ground-state rotational band has been observed up to spin 14 ℏ. The band has been assigned to 122Ce by detecting gamma rays in coincidence with evaporated charged particles and neutrons. The E(2 1+) value suggests a rather large ground-state deformation of β2 = 0.35, in good agreement with Hartree-Fock-Bogoliubov (HFB) mean-field calculations. The aligned angular momentum of the band has been studied and is compared with those of the neighboring even-even cerium isotopes, and to Woods-Saxon cranking calculations. The non-observation of the π(h11/2)2 alignment until at least 0.4 MeV/ℏ is consistent with the extracted value of β2.",

author = "Smith, {J. F.} and Chiara, {C. J.} and Carpenter, {M. P.} and Chantler, {H. J.} and Choy, {P. T.W.} and Davids, {C. N.} and M. Devlin and Durell, {J. L.} and Fossan, {D. B.} and Freeman, {S. J.} and Janssens, {R. V.F.} and Kelsall, {N. S.} and T. Koike and LaFosse, {D. R.} and Paul, {E. S.} and P. Reiter and Sarantites, {D. G.} and D. Seweryniak and K. Starosta and R. Wadsworth and Wilson, {A. N.} and Heenen, {P. H.}",

note = "Funding Information: This work is supported in part by the NSF, the EPSRC (UK), and by the Department of Energy, Office of Nuclear Physics, under contract Nos. W-31-109-ENG-38 (ANL) and DE-FG02-88ER-40406 (Washington University). ",

year = "2005",

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doi = "10.1016/j.physletb.2005.08.035",

language = "English",

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T1 - First observation of very neutron-deficient 122Ce

AU - Smith, J. F.

AU - Chiara, C. J.

AU - Carpenter, M. P.

AU - Chantler, H. J.

AU - Choy, P. T.W.

AU - Davids, C. N.

AU - Devlin, M.

AU - Durell, J. L.

AU - Fossan, D. B.

AU - Freeman, S. J.

AU - Janssens, R. V.F.

AU - Kelsall, N. S.

AU - Koike, T.

AU - LaFosse, D. R.

AU - Paul, E. S.

AU - Reiter, P.

AU - Sarantites, D. G.

AU - Seweryniak, D.

AU - Starosta, K.

AU - Wadsworth, R.

AU - Wilson, A. N.

AU - Heenen, P. H.

N1 - Funding Information: This work is supported in part by the NSF, the EPSRC (UK), and by the Department of Energy, Office of Nuclear Physics, under contract Nos. W-31-109-ENG-38 (ANL) and DE-FG02-88ER-40406 (Washington University).

PY - 2005/10/13

Y1 - 2005/10/13

N2 - Excited states have been identified in the very neutron-deficient 122Ce nucleus. This is the first observation of this nucleus and its excited states. The ground-state rotational band has been observed up to spin 14 ℏ. The band has been assigned to 122Ce by detecting gamma rays in coincidence with evaporated charged particles and neutrons. The E(2 1+) value suggests a rather large ground-state deformation of β2 = 0.35, in good agreement with Hartree-Fock-Bogoliubov (HFB) mean-field calculations. The aligned angular momentum of the band has been studied and is compared with those of the neighboring even-even cerium isotopes, and to Woods-Saxon cranking calculations. The non-observation of the π(h11/2)2 alignment until at least 0.4 MeV/ℏ is consistent with the extracted value of β2.

AB - Excited states have been identified in the very neutron-deficient 122Ce nucleus. This is the first observation of this nucleus and its excited states. The ground-state rotational band has been observed up to spin 14 ℏ. The band has been assigned to 122Ce by detecting gamma rays in coincidence with evaporated charged particles and neutrons. The E(2 1+) value suggests a rather large ground-state deformation of β2 = 0.35, in good agreement with Hartree-Fock-Bogoliubov (HFB) mean-field calculations. The aligned angular momentum of the band has been studied and is compared with those of the neighboring even-even cerium isotopes, and to Woods-Saxon cranking calculations. The non-observation of the π(h11/2)2 alignment until at least 0.4 MeV/ℏ is consistent with the extracted value of β2.

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