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MA Fei, ZHOU Xiao-hong, #, ZHENG Yong, XU Shu-wei, XIE Yuan-xiang, CHEN Liang, ZHANG Yu-hu, LI Zhan-kui, QIANG Yun-hua, LEI Xiang-guo, GUO Ying-xiang, GUO Song, DING Bing, WANG Hai-xia, LI Guang-shun, ZHOU Hou-bing. Properties of βdelayed Proton Decay of 145Er[J]. Nuclear Physics Review, 2010, 27(3): 252-256. DOI: 10.11804/NuclPhysRev.27.03.252
Citation: MA Fei, ZHOU Xiao-hong, #, ZHENG Yong, XU Shu-wei, XIE Yuan-xiang, CHEN Liang, ZHANG Yu-hu, LI Zhan-kui, QIANG Yun-hua, LEI Xiang-guo, GUO Ying-xiang, GUO Song, DING Bing, WANG Hai-xia, LI Guang-shun, ZHOU Hou-bing. Properties of βdelayed Proton Decay of 145Er[J]. Nuclear Physics Review, 2010, 27(3): 252-256. DOI: 10.11804/NuclPhysRev.27.03.252
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  • The neutrondeficient isotope 145Er was produced via the fusionevaporation reaction 92Mo(58Ni, 2p3n). The reaction products were transported to a low background counting area using a Hejet tape transport system, and protonγ coincidence measurements were carried out. Based on the analysis of γ transitions in coincidence with βdelayed protons, the βdelayed proton decay of an νh11/2 isomer in 145Er was proposed. By fitting the decay curves of the γ transitions depopulating the lowlying states in 144Dy, the halflives of the groundstate and the νh11/2 isomeric state in 145Er were deduced to be (1.6±0.6) and (0.6±0.1) s, respectively. An experimental plan to synthesize new βdelayed proton precursors in the mediumheavy mass region has been presented.
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