Chinese Physics C > 1996, Vol. 20 > Issue(2): 165-174

Theoretical Analysis of anU_qp(u₂) Model for Ground-State Bands in Even-Even Nuclei

Zhang Xinming^,,
Zhou Huanqiang

Department of Physics,Qujing Teacher's College,Yunnan 6550002 Department of Applled Physics,Chongqing University,Sichuan 630044

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Abstract：
The validity of an U_qp( u ₂)model for the nuclear rotational spectrum is systematically analysed by investigating the Mallmann plots and fitting the experimental data for the even-even rare-earth and actinide nuclei.The results show that the theoretical values obtained from the U_qp( u ₂) model are in a good accordance with the experimental findings.Thus the U_qp( u ₂) model has some advantages over the SU_q(2)model as far as energy levels are concerned. Further more,a relationship between the parameters of deformations and the nuclear softness is also established.

References

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P.P.Raychev,R.P.Rovssev,Yu,F.Smirnov,J.Phys.,G16（1990）137.[2]S.Iwao,Prog.Thesr.Phys.,83（1990）363.[3]孟杰、吴崇试、曾谨言，高能物理与核物理，16（1992）90.[4]M.Kibler,1993 Symmetry and Structural Properties of Condensed Matter ed W.Florek,D.Lipinski,T.Lulek（Singapare:World Scientific）p445.[5]R.Barbier,J.Meyer,M.Xibler,J.Phys.,G20（1994）13.[6]F.X.Xu,C.S.Wu,J.Y.Zeng,Phys.Rev,C40（1989）2337.[7]R.Bengtsson,S.Frauendorf,Nucl.Phys.,A327（1979）139.[8]M.J.de Voigt,J.Dudek,Z.Szymanski,Rev.Mod.Phys.,55（1983）949.[9]曾谨言、雷奕安，中国科学，23（1993）597.[10]D.Bonatsos et al,Phys.Lett.,251B（1990）477.

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Zhang Xinming and Zhou Huanqiang. Theoretical Analysis of an U_qp( u ₂) Model for Ground-State Bands in Even-Even Nuclei[J]. Chinese Physics C, 1996, 20(2): 165-174.

Zhang Xinming and Zhou Huanqiang. Theoretical Analysis of an U_qp( u ₂) Model for Ground-State Bands in Even-Even Nuclei[J]. Chinese Physics C, 1996, 20(2): 165-174. 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

Theoretical Analysis of anU_qp(u₂) Model for Ground-State Bands in Even-Even Nuclei

Zhang Xinming^,
Zhou Huanqiang

Corresponding author:Zhang Xinming,

Department of Physics,Qujing Teacher's College,Yunnan 6550002 Department of Applled Physics,Chongqing University,Sichuan 630044

Received Date:1900-01-01
Accepted Date:1900-01-01
Available Online:1996-02-05

Abstract:The validity of anU_qp(u₂)model for the nuclear rotational spectrum is systematically analysed by investigating the Mallmann plots and fitting the experimental data for the even-even rare-earth and actinide nuclei.The results show that the theoretical values obtained from theU_qp(u₂) model are in a good accordance with the experimental findings.Thus theU_qp(u₂) model has some advantages over theSU_q(2)model as far as energy levels are concerned. Further more,a relationship between the parameters of deformations and the nuclear softness is also established.