Systematic Features of π1/2<SUP>－</SUP>[541]⊙νi<SUB>13/2</SUB> Bands in Doubly-Odd Nuclei

ZHAO Guang-Yi; LU Jing-Bin; MA Ying-Jun; YIN Li-Chang; LI Xian-Feng; LI Zhi-Huan; WANG Zhi-Kui; WU Xiao-Guang; LI Guang-Sheng; WEN Shu-Xian; YANG Chun-Xiang; LIU Yun-Zuo

Chinese Physics C> 2000, Vol. 24> Issue(S1) : 33-37

Systematic Features of π1/2^－[541]⊙νi_13/2 Bands in Doubly-Odd Nuclei

Department of Physics,Jilin University,Changchun 130023,China2 China Institute of Atomic Energy,Beijing 102413,China

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Five rotational bands with configurations{π7/2⁺[404]⊙ν5/2⁺[642]}K=6,{π9/2⁺[541]⊙ν5/2⁺[642]}K=7{π1/2⁺[411]⊙ν5/2⁺[642]}K=2,{π1/2⁺[541]⊙ν5/2⁺[642]}K=2 and {π5/2⁺[402]⊙ν5/2⁺[642]}K=5,were populated through the ¹⁵²Sm(¹⁹F,5n)¹⁶⁶Lu reaction at a beam energy of 97MeV.The last three bands are identified in the present study.A phase change of level staggering is observed and low spin signature inversion is suggested in the band {π1/2^－[541]⊙ν5/2⁺[642]}K=2.The inversion spin 17.5h (spin at inversion point)of this band fits well to the systematic variation trend of inversion spin,increasing with N and decreasing with Z,for the known π1/2^－[541]⊙νi_13/2 bands observed in odd-odd deformed nuclei around A=170.

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ZHAO Guang-Yi, LU Jing-Bin, MA Ying-Jun, YIN Li-Chang, LI Xian-Feng, LI Zhi-Huan, WANG Zhi-Kui, WU Xiao-Guang, LI Guang-Sheng, WEN Shu-Xian, YANG Chun-Xiang and LIU Yun-Zuo. Systematic Features of π1/2^－[541]⊙νi_13/2 Bands in Doubly-Odd Nuclei[J]. Chinese Physics C, 2000, 24(S1): 33-37.

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Received: 1900-01-01
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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

Systematic Features of π1/2^－[541]⊙νi_13/2 Bands in Doubly-Odd Nuclei

Corresponding author: ZHAO Guang-Yi,

Department of Physics,Jilin University,Changchun 130023,China2 China Institute of Atomic Energy,Beijing 102413,China

Received Date: 1900-01-01

Accepted Date: 1900-01-01

Available Online: 2000-07-15

Abstract: Five rotational bands with configurations{π7/2⁺[404]⊙ν5/2⁺[642]}K=6,{π9/2⁺[541]⊙ν5/2⁺[642]}K=7{π1/2⁺[411]⊙ν5/2⁺[642]}K=2,{π1/2⁺[541]⊙ν5/2⁺[642]}K=2 and {π5/2⁺[402]⊙ν5/2⁺[642]}K=5,were populated through the ¹⁵²Sm(¹⁹F,5n)¹⁶⁶Lu reaction at a beam energy of 97MeV.The last three bands are identified in the present study.A phase change of level staggering is observed and low spin signature inversion is suggested in the band {π1/2^－[541]⊙ν5/2⁺[642]}K=2.The inversion spin 17.5h (spin at inversion point)of this band fits well to the systematic variation trend of inversion spin,increasing with N and decreasing with Z,for the known π1/2^－[541]⊙νi_13/2 bands observed in odd-odd deformed nuclei around A=170.

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Systematic Features of π1/2^－[541]⊙νi_13/2 Bands in Doubly-Odd Nuclei

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Systematic Features of π1/2^－[541]⊙νi_13/2 Bands in Doubly-Odd Nuclei

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Systematic Features of π1/2－[541]⊙νi13/2 Bands in Doubly-Odd Nuclei

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Systematic Features of π1/2－[541]⊙νi13/2 Bands in Doubly-Odd Nuclei

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Systematic Features of π1/2^－[541]⊙νi_13/2 Bands in Doubly-Odd Nuclei

Systematic Features of π1/2^－[541]⊙νi_13/2 Bands in Doubly-Odd Nuclei