LI Zhan-Kui1, XU Shu-Wei1, XIE Yuan-Xiang1, ZHANG Tian-Mei1, MA Rui-Chang1, GUO Ying-Xiang1, GE Yuan-Xiu1, WANG Chun-Fang1, GUO Bin1, XING Jian-Ping1, DU Jin-Zhou2
1Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000
2Department of Modern Physics, Lanzhou University, Lanzhou 730000
Abstract: The (EC+β+) decay of 128Ce was reinvestigated in the116Sn (l6O, 4n) reaction by using a helium-jet tape transport system. The decay γ rays of 128Ce were unambiguously described from those of 129Ce after taking the comparing experiments of 16O+116Sn and 16O+117Sn. Based on x-γ and γ-γ coincidence measurements, a detailed (EC+β+) decay scheme of 128Ce has been proposed which modifies the previous one, and takes accounts of 100 observed γ-lines.
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