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Dipole bands in nucleus ~(139)Pm |
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| Authors: | ZHANG Ning-Tao ZHANG Yu-Hu ZHOU Xiao-Hong LIU Min-Liang ZHENG Yong GUO Ying-Xiang CHEN Liang WANG Shi-Tao ZHANG Xin ZHU Li-Hua WU Xiao-Guang Institute of Modern Physics Chinese Academy of Sciences Lanzhou China Graduate University of Chinese Academy of Sciences Beijing China China Institute of Atomic Energy Beijing China |
| Institution: | ZHANG Ning-Tao1,2 ZHANG Yu-Hu1,2 ZHOU Xiao-Hong1 LIU Min-Liang1 ZHENG Yong1 GUO Ying-Xiang1 CHEN Liang1,2 WANG Shi-Tao1,2 ZHANG Xin1,2 ZHU Li-Hua3 WU Xiao-Guang31 Institute of Modern Physics,Chinese Academy of Sciences,Lanzhou 730000,China 2 Graduate University of Chinese Academy of Sciences,Beijing 100049,China 3 China Institute of Atomic Energy,Beijing 102413,China |
| Abstract: | High-spin states in nucleus 139Pm have been studied using the reaction 116Cd(27Al,4n)139Pm.Two dipole cascades have been found.Spin and parity assignments were based on the Directional Correlation of Oriented Nuclei(DCO) ratios and systematic behavior in neighboring odd-proton nuclei.The level structures of 139Pm are compared with those of the N =78 isotone 141Eu in which two dipole bands have been confirmed as magnetic rotational bands.The close similarity between them suggests that the dipole bands in 139... |
| Keywords: | magnetic rotation soft nuclei driving force oblate shape |
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