Chinese Physics C > 2004, Vol. 28 > Issue(7): 699-705

Experimental Study of High-Spin States in Odd-Odd¹⁷⁰Re

Institute of Modern Physics,Chinese Academy of Sciences,Lanzhou 730000,China2 Graduate School of the Chinese Academy of Sciences,Beijing 100039,China3 China Institute of Atomic Energy, Beijing 102413, China

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Abstract：
High-spin states in doubly odd ¹⁷⁰Re have been populated and investigated using ¹⁴²Nd ( ³²S,1p3nγ) ¹⁷⁰reaction at 166MeV bombarding energy. X-γ and γ-γ-t coincidence measurements have been carried out in the experiment. Based on the coincidence relationships, a rotational band in ¹⁷⁰has been identified for the first time, extending the high-spin studies of A≈160 odd-odd nuclei to the currently lightest rhenium isotope. The band has been assigned to be built on the πh _11/2⊙υi _13/2configuration according to their rotational properties in quasiparticle alignment, signature splitting, level spacing systematics, as well as the existing knowledge in neighboring nuclei. Low-spin signature inversion has been suggested for the πh _11/2⊙υi _13/2band in ¹⁷⁰.

References

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WANG Hua-Lei, ZHANG Yu-Hu, ZHOU Xiao-Hong, GUO Ying-Xiang, LEI Xiang-Guo, LIU Min-Liang, LUO Peng, XIE Cheng-Ying, SONG Li-Tao, YU Hai-Ping, ZHENG Yong, GUO Wen-Tao, Experimental Study of High-Spin States in Odd-Odd ¹⁷⁰Re[J]. Chinese Physics C, 2004, 28(7): 699-705.

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Received: 2003-11-28
Revised: 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

Experimental Study of High-Spin States in Odd-Odd¹⁷⁰Re

Corresponding author:ZHANG Yu-Hu,

Institute of Modern Physics,Chinese Academy of Sciences,Lanzhou 730000,China2 Graduate School of the Chinese Academy of Sciences,Beijing 100039,China3 China Institute of Atomic Energy, Beijing 102413, China

Received Date:2003-11-28

Accepted Date:1900-01-01

Available Online:2004-07-05

Abstract:High-spin states in doubly odd¹⁷⁰Re have been populated and investigated using¹⁴²Nd (³²S,1p3nγ)¹⁷⁰reaction at 166MeV bombarding energy. X-γ and γ-γ-t coincidence measurements have been carried out in the experiment. Based on the coincidence relationships, a rotational band in¹⁷⁰has been identified for the first time, extending the high-spin studies of A≈160 odd-odd nuclei to the currently lightest rhenium isotope. The band has been assigned to be built on the πh_11/2⊙υi_13/2configuration according to their rotational properties in quasiparticle alignment, signature splitting, level spacing systematics, as well as the existing knowledge in neighboring nuclei. Low-spin signature inversion has been suggested for the πh_11/2⊙υi_13/2band in¹⁷⁰.

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Experimental Study of High-Spin States in Odd-Odd¹⁷⁰Re

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