Chinese Physics C > 2006, Vol. 30 > Issue(5): 402-404

Signature Inversion in the πh_9/2×υi_13/2Oblate Band of 188TL

Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China2 Japan Atomic Energy Research Institute, Tokai, Ibaraki 319-1195, Japan3 Chiba Institute of Technology, Narashino, Chiba 275-0023, Japan

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Abstract：
High-spin Level structure of ¹⁸⁸Tl has been studied via ¹⁵⁷Gd( ³⁵Cl,4n) fusion-evaporation reaction at beam energy of 170MeV. A rotational band built on the πh _9/2×υi _13/2configuration with oblate deformation has been established. Spin values have been proposed to the πh _9/2×υi _13/2oblate band based on the similarities between the oblate band of ¹⁸⁸Tl and those in odd-odd ^190—200Tl. With the spin assignments, the low-spin signature inversion has been revealed for the πh _9/2×υi _13/2oblate band of ¹⁸⁸Tl. The low-spin signature inversion can be interpreted qualitatively in the framework of the quasi-particles plus rotor model including a J dependent p-n residual interaction.

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MA Long, ZHOU Xiao-Hong, ZHANG Yu-Hu and GUO Ying-Xiang. Signature Inversion in the πh _9/2×υi _13/2Oblate Band of 188TL[J]. Chinese Physics C, 2006, 30(5): 402-404.

MA Long, ZHOU Xiao-Hong, ZHANG Yu-Hu and GUO Ying-Xiang. Signature Inversion in the πh _9/2×υi _13/2Oblate Band of 188TL[J]. Chinese Physics C, 2006, 30(5): 402-404. shu

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Received: 2005-09-30
Revised: 2005-10-13

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通讯作者:陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

Signature Inversion in the πh_9/2×υi_13/2Oblate Band of 188TL

Corresponding author:MA Long,

Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China2 Japan Atomic Energy Research Institute, Tokai, Ibaraki 319-1195, Japan3 Chiba Institute of Technology, Narashino, Chiba 275-0023, Japan

Received Date:2005-09-30

Accepted Date:2005-10-13

Available Online:2006-05-05

Abstract:High-spin Level structure of¹⁸⁸Tl has been studied via¹⁵⁷Gd(³⁵Cl,4n) fusion-evaporation reaction at beam energy of 170MeV. A rotational band built on the πh_9/2×υi_13/2configuration with oblate deformation has been established. Spin values have been proposed to the πh_9/2×υi_13/2oblate band based on the similarities between the oblate band of¹⁸⁸Tl and those in odd-odd^190—200Tl. With the spin assignments, the low-spin signature inversion has been revealed for the πh_9/2×υi_13/2oblate band of¹⁸⁸Tl. The low-spin signature inversion can be interpreted qualitatively in the framework of the quasi-particles plus rotor model including a J dependent p-n residual interaction.

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Signature Inversion in the πh_9/2×υi_13/2Oblate Band of 188TL

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