Relation Between the Gap at Z=64 Subshell and the Abrupt Transition in the Region N=88~90

  • The onset of deformation in the N=88~90 region and the effects of the gap at Z=64 subshell on nucler structure are investigated in a microscopic approach of the interacting boson model.It turns out that,besides the n-p interaction,the distribution of single particle levels in the shell model space also plays a direct and important role in the rapid transition of spectrum structure.For Nd~Dy nuclei the calculations show excellent agreement agreement with experimental energy systematics.
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  • [1] 张敬业,钟纪泉,李宝安,高能物理与核物理,1(1986),92,[2] R. F. Casten et al., Phys. Rev. Lett., 47(1981), 1433.[3] R. L. Gill, R. F. Casten et al., Phys: Lett., 118(1982), 251.[4] R. F. Casten, W. Frank and P. Von Brentano, Nucl. Phys., A444(1985), 133.[5] E. Ye. Berlovich and F. F. Karpeshin, Phys. Lett., B177(1986), 260.[6] P. Mukherjee, R. Bhattacharya, and I, Mukherjee, Phys. Rev., C24(1981), 1810 and referencetherein.[7] 刘庸,华中师范大学学报(自然科学版),Vol. 20(1986), 289.[8] Z. S. Yang, Liu Yong and Qi Hui, Nucl. Phys., A421(1984), 297.[9] T. Otsuka, A. Arima, and F. Iachello, Nucl. Phys., A309(1978), 1.[10] L. M. Yang, Collective Bands in Nuclei, in: Progress in Particle and Nuclei, Vol., 9, Ed. D.Wilkinson (Pergamon Press. (1983)) pp. 147一L82.[11] 杨泽森,刘庸,田晓岑,高能物理与核物理,s(19az),472;杨泽森,高能物理与核物理,9(1985),341.[12] 刘庸,田晓岑,杨泽森,高能物理与核物理,6(1983),480,[13] P. Kleinheinz. Proc. Symp. on High-Spin Phenomena in Nuclei 15-17 March (1979), Argonne,p. 125.[14] T. Otsuka and N. Yoshida, JAER1-M Report, 85-094.[15] J. L. Wood., Nucl. Phys., A421(1984), 43; Nucl. Data Sheets, 29(1980), 587; 35(1982), 375; 38(1983), 545.
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SANG Jian-Ping, LIU Chao-Shan and LIU Yong. Relation Between the Gap at Z=64 Subshell and the Abrupt Transition in the Region N=88~90[J]. Chinese Physics C, 1991, 15(2): 150-157.
SANG Jian-Ping, LIU Chao-Shan and LIU Yong. Relation Between the Gap at Z=64 Subshell and the Abrupt Transition in the Region N=88~90[J]. Chinese Physics C, 1991, 15(2): 150-157. shu
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Received: 1900-01-01
Revised: 1900-01-01
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Relation Between the Gap at Z=64 Subshell and the Abrupt Transition in the Region N=88~90

    Corresponding author: SANG Jian-Ping,
  • Institute of Particle Physics,Hua-Zhong Normal Univer,Wuhan 430070

Abstract: The onset of deformation in the N=88~90 region and the effects of the gap at Z=64 subshell on nucler structure are investigated in a microscopic approach of the interacting boson model.It turns out that,besides the n-p interaction,the distribution of single particle levels in the shell model space also plays a direct and important role in the rapid transition of spectrum structure.For Nd~Dy nuclei the calculations show excellent agreement agreement with experimental energy systematics.

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