Effective Boson Numbers in IBM-Ⅱ

ZHAO Yu-Min; GU Jin-Nan

Chinese Physics C> 1992, Vol. 16> Issue(10) : 950-953

Effective Boson Numbers in IBM-Ⅱ

ZHAO Yu-Min ^, ,
GU Jin-Nan

Institute of Modern Physics,Academia Sinica,Lanzhou 730000

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Abstract：
Effective boson numbers in IBM-Ⅱ are tackled with a simple semi-empirical method,the saturation of proton boson numbers and neutron boson numbers is suggested.It explains the strong correlation and saturation effect of E₂ and M₁ transition strengrths in even-even rare-earth nuclei.Finally.the results here are compared with effective boson numbers calculated microscopically,the agreement is good.

References

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R. F. Casten et al., Phys, Rev. Lett., 47(1981), 1433.[2] R. L. Gill et al., Phys. Lett, B118(1982), 251.[3] A. Wolf et al., Phys. Lett., B123(1983), 165.[4] A. Wolf et al., Phys, Lett., B158(195), 7; Phys, Lett., B190(1987), 19.[5] C. S. Han et al., Phys. Rev., C42(1990), 280.[6] O. Scholten, Phys. Lett., B127(1983), 144.[7] N. Yoshinaga, Nucl. Phys., ,522(1991), 99[8] 赵玉民，中国科学院近代物理所硕士论文，(1991).[9] S, Raman et al., Nuclear Data Table (1987), P. 1-96; Phys. Rev., C37(1985), 805.[10] C. Rangacharyulu et al., Phys. Rev., C43(1991), R949.

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ZHAO Yu-Min and GU Jin-Nan. Effective Boson Numbers in IBM-Ⅱ[J]. Chinese Physics C, 1992, 16(10): 950-953.

ZHAO Yu-Min and GU Jin-Nan. Effective Boson Numbers in IBM-Ⅱ[J]. Chinese Physics C, 1992, 16(10): 950-953. shu

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

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