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Observation of High-j Two-Quasiparticle Bands in Odd--Odd |
ZHANG Yu-Hu1;GUO Song1,2;ZHOU Xiao-Hong1;MA Long1;Oshima M.3;Toh Y.3;Koizumi M.3;Osa A.3;Kimura A.3;Hatsukawa Y.3;Sugawara M.4;Kusakari H.5 |
1Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000
2Graduate School of Chinese Academy of Sciences, Bejing 100039
3Japan Atomic Energy Research Institute, Tokai-mura, Ibaraki 319-1195, Japan
4Chiba Institute of Technology, Narashino, Chiba 275-0023, Japan
5Chiba University, Inage-ku, Chiba 263-8512, Japan |
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Cite this article: |
ZHANG Yu-Hu, GUO Song, ZHOU Xiao-Hong et al 2005 Chin. Phys. Lett. 22 2788-2791 |
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Abstract High spin states in 174Re have been investigated via the 152Sm (27Al, 5nγ)174Re reaction. Gamma-ray excitation functions, x-γ and γ-γ coincidences have been measured. Two rotational bands built on the π h9/2 otimes vi13/2 and π h11/2 otimes vi13/2 configurations have been identified and extended up to high-spin states. The relative spin and parity of the band levels have been unambiguously fixed due to observations of several inter-band transitions. Both the bands show the low-spin signature inversion, which is consistent with systematic expectations for the high-j two-quasiparticle bands in the A=170 mass region.
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Keywords:
21.10.Re
23.20.-g
23.20.Lv
27.70.+q
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Published: 01 November 2005
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