HIGH-ORDER CRANKING CALCULATION IN THE INTERACTING BOSON MODEL AND INTERACTING BOSONFERMION MODEL

LU Lan-Chun; LIU Yong

Chinese Physics C> 1990, Vol. 14> Issue(1) : 42-48

HIGH-ORDER CRANKING CALCULATION IN THE INTERACTING BOSON MODEL AND INTERACTING BOSONFERMION MODEL

LU Lan-Chun ^, ,
LIU Yong

Institute of Particle Physics,Hua-Zhong Normal University,Wuhan

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Abstract：
Considering that the IBM and IBFM cranking calculations in the lowest order of angular frequency can give reasonably good estimates for the moment of inertia,we extend them to study the dependence of the moment of inertia on the higher order terms.We find that the analytic expressions for the correction terms can be derived.Numerical calculations for ¹⁵⁴Gd and ¹⁶¹Er are performed and compared with experiment.The Hamiltonian is taken from a microscopic approach.Calculated results show that the properties of higher order terms depend on the deformation of rotating system but the correction yields only limited effect when ω is small.

References

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H. Schaaser and D.M. Brink, Nucl. Phys., A452(1986), 1.[2] 刘庸、桑建平，高能物理与核物理，12(1988),644.[3] 刘庸、桑建平，高能物理与核物理，13(1989),346.[4] Yang Zesen, Liu Yong and Qi Hui, Nucl. Phys., A421 (1984), 297[5] A. Bohr and B, R. Mottelson, Nuclear Structure V o1.II W. A. Benjamin Inc., New York (1975).[6] 杨泽森、钟毓澎、齐辉，杨立铭，高能物理与核物理，2(1978),158.[7] J. N. Ginocchio and M.W. Kirson, Nucl. Phys., A350 (1980), 31;Phyt. Rev. Lett.,44(1980), 1744.[8] A. Bohr and B.R. Mottelson, Physica Scripta, 22(1980), 468; 25(1982), 28.[9] Arpita Mishra and A. N. Mantri,J.Phys. G. Nucl. Phys., 13 (1987) L275.

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LU Lan-Chun and LIU Yong. HIGH-ORDER CRANKING CALCULATION IN THE INTERACTING BOSON MODEL AND INTERACTING BOSONFERMION MODEL[J]. Chinese Physics C, 1990, 14(1): 42-48.

LU Lan-Chun and LIU Yong. HIGH-ORDER CRANKING CALCULATION IN THE INTERACTING BOSON MODEL AND INTERACTING BOSONFERMION MODEL[J]. Chinese Physics C, 1990, 14(1): 42-48. shu

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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

HIGH-ORDER CRANKING CALCULATION IN THE INTERACTING BOSON MODEL AND INTERACTING BOSONFERMION MODEL

LU Lan-Chun ^,
LIU Yong

Corresponding author: LU Lan-Chun,

Institute of Particle Physics,Hua-Zhong Normal University,Wuhan

Received Date: 1900-01-01
Accepted Date: 1900-01-01
Available Online: 1990-01-05

Abstract: Considering that the IBM and IBFM cranking calculations in the lowest order of angular frequency can give reasonably good estimates for the moment of inertia,we extend them to study the dependence of the moment of inertia on the higher order terms.We find that the analytic expressions for the correction terms can be derived.Numerical calculations for ¹⁵⁴Gd and ¹⁶¹Er are performed and compared with experiment.The Hamiltonian is taken from a microscopic approach.Calculated results show that the properties of higher order terms depend on the deformation of rotating system but the correction yields only limited effect when ω is small.