s′ Boson and the S-D Truncation in the IBM

SANG Jian-Ping

Chinese Physics C> 1992, Vol. 16> Issue(5) : 423-430

s′ Boson and the S-D Truncation in the IBM

SANG Jian-Ping ^,

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

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Abstract：
In order to investigate the S-D truncation in the interacting boson model,s′-boson is considered to enlarge the collective subspace.The structures of the s,d and s′-bosons are determined in terms of one of the microscopic IBM approaches.The calculation and discussion of the s′-boson and the system including one s′-boson show that ,although the s′-boson has little contribution to the excited states below 2MeV which are already well described by the sd IBM,it is expected that the introducing of the s′-boson may extend the applicability of the model to a number of states above 2MeV.

References

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A. Bohr and B. R. Mottelson, Physica Scripts, 22(1980), 468; W. Pannerl, P. Ring and Y. K.Gaublir, Nucl.Phys.,A443 (1985),189;R. F. Casten et al, Phys. Rev., C36 (1987), 1[2] P. Van Isacker, et al., Nucl. Phys., A380 (1982), 383.[3] Yang Zesen, Liu Yong and Qi Hui, Nucl. Phys., A421 (1984), 297;杨泽森、刘庸等，高能物理与核物理，6 (1982)， 472;杨泽森，高能物理与核物理，9 (1985)， 341,[4] 刘庸，田晓岑，杨泽森，高能物理与核物理，6 (1983), 480,[5] 刘庸，博士论文，北京大学，(1984),[6] H. Schaaser and D. M. Brink, Nucl. Phys., A 452 (1986), 1,[7] 刘庸，桑建平，高能物理与核物理，12 (1988)， 644;刘庸，桑建平，高能物理与核物理，13 (1989), 346,

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SANG Jian-Ping. s′ Boson and the S-D Truncation in the IBM[J]. Chinese Physics C, 1992, 16(5): 423-430.

SANG Jian-Ping. s′ Boson and the S-D Truncation in the IBM[J]. Chinese Physics C, 1992, 16(5): 423-430. 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

s′ Boson and the S-D Truncation in the IBM

SANG Jian-Ping ^,

Corresponding author: SANG Jian-Ping,

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

Received Date: 1900-01-01
Accepted Date: 1900-01-01
Available Online: 1992-05-05

Abstract: In order to investigate the S-D truncation in the interacting boson model,s′-boson is considered to enlarge the collective subspace.The structures of the s,d and s′-bosons are determined in terms of one of the microscopic IBM approaches.The calculation and discussion of the s′-boson and the system including one s′-boson show that ,although the s′-boson has little contribution to the excited states below 2MeV which are already well described by the sd IBM,it is expected that the introducing of the s′-boson may extend the applicability of the model to a number of states above 2MeV.