Microscopic Investigation of High-Spin States for Even-Even Nuclei(Ⅱ) Application to isotones 154Dy,156Er and 158Yb

Sang Jianping; Liu Yong

Chinese Physics C> 1994, Vol. 18> Issue(11) : 1020-1026

Microscopic Investigation of High-Spin States for Even-Even Nuclei(Ⅱ) Application to isotones ¹⁵⁴Dy,¹⁵⁶Er and ¹⁵⁸Yb

Sang Jianping ^, ,
Liu Yong

Department of Physics,Wuhan University,Wuhan 4300722 Institute of Particle Physics,Hua-Zhong Normal University,Wuhan 430070

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With the effective interactions consisting of a pairing force,a quadrupole pairing force and a quadrupole-quadrupole force among valence nucleons,the microscopic approach based on the generalized Dyson expansion theory is applied in studying both the low-lying and high spin states for the isotones ¹⁵⁴Dy,¹⁵⁶Er and ¹⁵⁸Yb.In the truncated state space,the configurations(sd)N and (sd)N-1,+neutron-pair are assumed,respectively,for the low-lying and high spin states,although the same values of strength parameters are taken in the numerical calculations in the two subspaces.The calculated results are in good agreement with experiment,especially the data of first backbendings are reproduced satisfactorily.

References

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Sang Jianping and Liu Yong. Microscopic Investigation of High-Spin States for Even-Even Nuclei(Ⅱ) Application to isotones ¹⁵⁴Dy,¹⁵⁶Er and ¹⁵⁸Yb[J]. Chinese Physics C, 1994, 18(11): 1020-1026.

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Received: 1900-01-01
Revised: 1900-01-01

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沈阳化工大学材料科学与工程学院沈阳 110142

Microscopic Investigation of High-Spin States for Even-Even Nuclei(Ⅱ) Application to isotones ¹⁵⁴Dy,¹⁵⁶Er and ¹⁵⁸Yb

Sang Jianping ^,
Liu Yong

Corresponding author: Sang Jianping,

Department of Physics,Wuhan University,Wuhan 4300722 Institute of Particle Physics,Hua-Zhong Normal University,Wuhan 430070

Received Date: 1900-01-01
Accepted Date: 1900-01-01
Available Online: 1994-11-05

Abstract: With the effective interactions consisting of a pairing force,a quadrupole pairing force and a quadrupole-quadrupole force among valence nucleons,the microscopic approach based on the generalized Dyson expansion theory is applied in studying both the low-lying and high spin states for the isotones ¹⁵⁴Dy,¹⁵⁶Er and ¹⁵⁸Yb.In the truncated state space,the configurations(sd)N and (sd)N-1,+neutron-pair are assumed,respectively,for the low-lying and high spin states,although the same values of strength parameters are taken in the numerical calculations in the two subspaces.The calculated results are in good agreement with experiment,especially the data of first backbendings are reproduced satisfactorily.

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Microscopic Investigation of High-Spin States for Even-Even Nuclei(Ⅱ) Application to isotones ¹⁵⁴Dy,¹⁵⁶Er and ¹⁵⁸Yb

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Microscopic Investigation of High-Spin States for Even-Even Nuclei(Ⅱ) Application to isotones ¹⁵⁴Dy,¹⁵⁶Er and ¹⁵⁸Yb

Corresponding author: Sang Jianping,

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