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Chinese Physics C> 2004, Vol. 28> Issue(S1) : 43-46 

Study of Multi-particle Excitation in 146Tb

  •  中国科学院近代物理研究所

  • High-spin Level structure of 146Tb has been studied via the 118Sn(32S,1p3n)146Tb reaction using techniques of in-beam γ-ray spectroscopy. Based on the experimental measured results, the level scheme of 146Tb has been revised significantly and extended up to an excitation energy of 8.39 MeV. The doubly odd nucleus 146Tb has one proton-particle and one neutron--hole with respect to the doubly closed nucleus 146Gd, and its low-lying states should be 2-qp states, and the high-lying states should be 4-qp states or the coupling of 2-qp state to the low-lying excited states in 146Gd core. The excitation of the fully-aligned 4-qp configurations can also be well reproduced using the empirical shell-model approaches.
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    [1] . Broda R, Chung Y H, Daly P J et al. Z. Phys., 1984,A316: 1252.Collatz R, Amzal N, Mélliani Z et al. Z. Phys., 1997,A359: 1133.Zuber K, LIANG C F, Paris P et al. Z. Phys., 1987, A327:3574.XIE Cheng-Ying et al. HEP NP, 2003, 27(10): 884(in Chinese)(谢成营等. 高能物理与核物理, 2003, 27(10):884)5.Broda R, Daly P J, Mcneill J H et al. Z. Phys., 1989,A334: 116.Kleinheinz P, Ogawa M, Broad R et al. Z. Phys., 1978,A286: 277.Yates S W, Julin R, Kleinheinz P et al. Z. Phys., 1986,A324: 4178.Ercan A, Broda R, Kleinheinz P et al. Z. Phys., 1988,A329: 639.Piiparinen M, Atac A, Blomqvist J et al. Nucl. Phys.,1996, A605: 19110.Broda R, Behar M, Kleinheinz P et al. Z. Phys., 1979,A293: 13511.Collatz R, Kleinheinz P, ZHANG C T et al. Z. Phys., 1995,A351: 24512.Pakkanen A, Muhonen J, Piiparinen M et al. Nucl. Phys.,1982, A373: 23713.Ogawa M, Broda R, Zell K et al. Phys. Rev.,1978, lett.41: 28914.Jongman J R, Bacelar J C S, Balanda A et al. Nucl. Phys.,1995, A581: 16515.Rakel D A, Kaczarowski R, Funk E G et al. Phys. Rev.,1980, C21: 59516.Lawson R D, Theory of the Nuclear Shell Model(Oxford University, Oxford,1980)17.Audi G, Wapstra A H. Nucl. Phys., 1995, A595: 40918.Kleinheinz P, Broda R, Daly P J et al. Z. Phys., 1979,A290: 279

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XIE Cheng-Ying, ZHOU Xiao-Hong, ZHENG Yong, ZHANG Yu-Hu, GUO Ying-Xiang and LIU Min-Liang. Study of Multi-particle Excitation in 146Tb[J]. Chinese Physics C, 2004, 28(S1): 43-46.
XIE Cheng-Ying, ZHOU Xiao-Hong, ZHENG Yong, ZHANG Yu-Hu, GUO Ying-Xiang and LIU Min-Liang. Study of Multi-particle Excitation in 146Tb[J]. Chinese Physics C, 2004, 28(S1): 43-46. shu
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Received: 2004-12-30
Revised: 1900-01-01
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Study of Multi-particle Excitation in 146Tb

    Corresponding author: XIE Cheng-Ying,
  • 中国科学院近代物理研究所
  • Received Date: 2004-12-30
  • Accepted Date: 1900-01-01
  • Available Online: 2004-04-02

Abstract: High-spin Level structure of 146Tb has been studied via the 118Sn(32S,1p3n)146Tb reaction using techniques of in-beam γ-ray spectroscopy. Based on the experimental measured results, the level scheme of 146Tb has been revised significantly and extended up to an excitation energy of 8.39 MeV. The doubly odd nucleus 146Tb has one proton-particle and one neutron--hole with respect to the doubly closed nucleus 146Gd, and its low-lying states should be 2-qp states, and the high-lying states should be 4-qp states or the coupling of 2-qp state to the low-lying excited states in 146Gd core. The excitation of the fully-aligned 4-qp configurations can also be well reproduced using the empirical shell-model approaches.

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