Re-discussion of the Spin Assignments of the Superdeformed Bands in A≈190 Region (Ⅲ) Doubly Odd Superdeformed Nuclei

Wu Chongshi; Zhou Zhining

Chinese Physics C> 1999, Vol. 23> Issue(12) : 1209-1215

Re-discussion of the Spin Assignments of the Superdeformed Bands in A≈190 Region (Ⅲ) Doubly Odd Superdeformed Nuclei

Wu Chongshi ^, ,
Zhou Zhining

Confer of Theoretical Nuclear Physics,National Laboratory of Heavy Ion Accelerator,Lanzhou 7300002 Department of Physics,Peking University,Beijing 100871

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Abstract：
The influence of the fluctuation in γ-transition energies and the I=1 staggering on the spin assignment of superdeformed band is inveshgated for the doubly odd nuclei in mass A≈190 region. The extracted fluctuations in γ-transition energies are not too large, implying a weak innuence on their spin assignments except for the fitting parameters and precisions. In addition, the I= staggering in superdeformed signature partner pairs of doubly odd nuclei behaves differently from that in odd-A nuclei and can be understood in the framework of the collechve model.The existence of I=1 staggering also exefts no influence on the spin assignment except for a renormalizahon of fithng parameters. A modified ab-expresion valid in doubly odd nuclei is proPOsed. The smoothed ti'ansihon energies are employed to assign the spins of these superdeformed bands by the ab-fitting and itS modification.

References

[1]

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Wu Chongshi and Zhou Zhining. Re-discussion of the Spin Assignments of the Superdeformed Bands in A≈190 Region (Ⅲ) Doubly Odd Superdeformed Nuclei[J]. Chinese Physics C, 1999, 23(12): 1209-1215.

Wu Chongshi and Zhou Zhining. Re-discussion of the Spin Assignments of the Superdeformed Bands in A≈190 Region (Ⅲ) Doubly Odd Superdeformed Nuclei[J]. Chinese Physics C, 1999, 23(12): 1209-1215. shu

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Received: 1998-10-15
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

Re-discussion of the Spin Assignments of the Superdeformed Bands in A≈190 Region (Ⅲ) Doubly Odd Superdeformed Nuclei

Corresponding author: Wu Chongshi,

Confer of Theoretical Nuclear Physics,National Laboratory of Heavy Ion Accelerator,Lanzhou 7300002 Department of Physics,Peking University,Beijing 100871

Received Date: 1998-10-15

Accepted Date: 1900-01-01

Available Online: 1999-12-05

Abstract: The influence of the fluctuation in γ-transition energies and the I=1 staggering on the spin assignment of superdeformed band is inveshgated for the doubly odd nuclei in mass A≈190 region. The extracted fluctuations in γ-transition energies are not too large, implying a weak innuence on their spin assignments except for the fitting parameters and precisions. In addition, the I= staggering in superdeformed signature partner pairs of doubly odd nuclei behaves differently from that in odd-A nuclei and can be understood in the framework of the collechve model.The existence of I=1 staggering also exefts no influence on the spin assignment except for a renormalizahon of fithng parameters. A modified ab-expresion valid in doubly odd nuclei is proPOsed. The smoothed ti'ansihon energies are employed to assign the spins of these superdeformed bands by the ab-fitting and itS modification.

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Re-discussion of the Spin Assignments of the Superdeformed Bands in A≈190 Region (Ⅲ) Doubly Odd Superdeformed Nuclei

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