High-Spin Level Scheme of Odd-Odd 140Pr Nucleus |
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Authors: | 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 |
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Institution: | 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 |
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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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