Study of Nuclear Behavior in Axially-Symmetric Superdeformation and Triaxial Superdeformation

Xu Jinzhang; Wang Zixing; Chen Xignqu; Xing Zheng

Chinese Physics C> 1999, Vol. 23> Issue(11) : 1102-1107

Study of Nuclear Behavior in Axially-Symmetric Superdeformation and Triaxial Superdeformation

Center of Theoretical Nuclear Physics, National Laboratory of Heavy Ion Accelerator, Lanzhou 7300002 Department of Modern Physics, Lanzhou University Lanzhou 7300003 Institute of Nuclear Research, The Chinese Academy of Sciences, shanghai 201800

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Abstract：
Using axially-symmetric and triaxial superdeformed models [660 1/2] band in ¹⁶⁵Lu is investigated. The observed transition energies can be reproduced quite well in both models. However, the signature staggering index, triaxiality factor and the ratio of dynamical quadrupole moment Q⁽¹⁾ to Q⁽²⁾ in axially-symmetric superdeformed model are obviously different from those in triaxial superdeformed model, which may be used to identify the deviation of nuclear shape from axial symmetry. Thus, the energy spectra are not decisive to draw the nuclear shape. Emphasis must be Placed on the properties of electromagnetic transitions.

References

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Schmitz W, Yang C X, Hubel H et al. Nucl. Phys., 1992, A539(1):112–136 2 Schmitz W, Hubel H, Yang C X et al. Phys. Lett., 1993, B303(3,4):230–235 3 Schnack–Petersen H, Bengtsson R, Bark R A et al. Nucl. Phys., 1995, A594(2):175–202 4 Yang C X, Wu X G, Zheng H et al. Eur. Phys. J., 1998, A1:237–239 5 Sarantitestes D G, LaFosse D R, Devlin M et al. Phys. Rev., 1998, C57(1):R1–R56 Xing Z, Wang Z X, Chen X Q. Chin. Phys. Lett., 1998, 15(3):170–1727 Chen X Q, Xing Z. J. Phys., 1993, G19(11):1869–18778 Casten R F, Zamifir, Brentano P You et al. Phys. Lett., 1991, B265(1):9~13 9 Hagemann G B, Hamamoto I. Phys. Rev., 1989, C40(6):2862–2869

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Xu Jinzhang, Wang Zixing, Chen Xignqu and Xing Zheng. Study of Nuclear Behavior in Axially-Symmetric Superdeformation and Triaxial Superdeformation[J]. Chinese Physics C, 1999, 23(11): 1102-1107.

Xu Jinzhang, Wang Zixing, Chen Xignqu and Xing Zheng. Study of Nuclear Behavior in Axially-Symmetric Superdeformation and Triaxial Superdeformation[J]. Chinese Physics C, 1999, 23(11): 1102-1107. shu

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Received: 1998-08-05
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

Study of Nuclear Behavior in Axially-Symmetric Superdeformation and Triaxial Superdeformation

Corresponding author: Xu Jinzhang,

Center of Theoretical Nuclear Physics, National Laboratory of Heavy Ion Accelerator, Lanzhou 7300002 Department of Modern Physics, Lanzhou University Lanzhou 7300003 Institute of Nuclear Research, The Chinese Academy of Sciences, shanghai 201800

Received Date: 1998-08-05
Accepted Date: 1900-01-01
Available Online: 1999-11-05

Abstract: Using axially-symmetric and triaxial superdeformed models [660 1/2] band in ¹⁶⁵Lu is investigated. The observed transition energies can be reproduced quite well in both models. However, the signature staggering index, triaxiality factor and the ratio of dynamical quadrupole moment Q⁽¹⁾ to Q⁽²⁾ in axially-symmetric superdeformed model are obviously different from those in triaxial superdeformed model, which may be used to identify the deviation of nuclear shape from axial symmetry. Thus, the energy spectra are not decisive to draw the nuclear shape. Emphasis must be Placed on the properties of electromagnetic transitions.