High-Spin Level Scheme of Odd-Odd 140Pr Nucleus

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YU Hai-Ping, GUO Ying-Xiang, LEI Xiang-Guo, ZHANG Yu-Hu, ZHOU Xiao-Hong, LUO Peng, LIU Min-Liang, SONG Li-Tao, WANG Hua-Lei, XIE Cheng-Ying, ZHENG Yong, GUO Wen-Tao, High-Spin Level Scheme of Odd-Odd 140Pr Nucleus[J]. Chinese Physics C, 2004, 28(8): 806-809.
YU Hai-Ping, GUO Ying-Xiang, LEI Xiang-Guo, ZHANG Yu-Hu, ZHOU Xiao-Hong, LUO Peng, LIU Min-Liang, SONG Li-Tao, WANG Hua-Lei, XIE Cheng-Ying, ZHENG Yong, GUO Wen-Tao, High-Spin Level Scheme of Odd-Odd 140Pr Nucleus[J]. Chinese Physics C, 2004, 28(8): 806-809. shu
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Received: 2003-11-19
Revised: 1900-01-01
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High-Spin Level Scheme of Odd-Odd 140Pr Nucleus

    Corresponding author: GUO Ying-Xiang,
  • Institute of Modern Physics,Chinese Academy of Science,Lanzhou 730000,China2 Graduate School of the Chinese Academy of Sciences,Beijing 100039,China3 China Institute of Atomic Energy,Beijing 102413,China

Abstract: High spin level structure of doubly odd nucleus 140Pr has been investigated using in beam γ spectroscopy techniques by means of the 130Te(14N,4n)140Pr reaction at beam energy of 58MeV.γ-ray excitation functions,γ-ray singles and γ-γ-t coincidences were measured experimentally.The level scheme of 140Pr,including 27 new levels and 42 new γ-rays,was established for the first time up to 4717.3keV in excitation energy.Based on the measured γ-ray anisotropies,spin values were suggested to the levels in 140Pr.Several quasiparticle configurations are discussed on the basis of systematics in the neighboring odd odd nuclei,and interpreted qualitatively.

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