Cluster decay of the high-lying excited states in 14C＊

作     者：田正阳 叶沿林 李智焕 林承键 李奇特 葛愉成 楼建玲 蒋伟 李晶 杨再宏 冯俊 李朋杰 陈洁 刘强 臧宏亮 杨彪 张允 陈志强 刘洋 孙晓慧 马竞 贾会明 徐新星 杨磊 马南茹 孙立杰 

作者机构：School of Physics and State Key Laboratory of Nuclear Physics and Technology Peking University Beijing 100871 China China Institute of Atomic Energy Beijing 102413 China 

出 版 物：《Chinese Physics C》 (中国物理C（英文版）)

年 卷 期：2016年第40卷第11期

页      面：1-4页

核心收录：

学科分类：0709[理学-地质学] 08[工学] 0708[理学-地球物理学] 0804[工学-仪器科学与技术] 0827[工学-核科学与技术] 082701[工学-核能科学与工程] 0703[理学-化学] 0704[理学-天文学] 0702[理学-物理学] 

基　　金：Supported by the 973 Program of China(2013 CB834402) National Natural Science Foundation of China(11275011,11535004) 

主　　题：transfer reaction high-lying excited states cluster decay molecular structure reconstruction 

摘      要：A cluster-transfer experiment of 9Be（gBe,14 C --＋ a＋lOBe）e： at an incident energy of 45 MeV was carried out in order to investigate the molecular structure in high-lying resonant states in 14C. This reaction is of extremely large Q-value, making it an excellent case to select the reaction mechanism and the final states in outgoing nuclei. The high-lying resonances in 14C are reconstructed for three sets of well discriminated final states in 10Be. The results confirm the previous decay measurements with clearly improved decay-channel selections and also show a new state at 23.5（1） MeV. The resonant states at 22.4（3） and 24.0（3） MeV decay primarily into the typical molecular states at about 6 MeV in 10Be, indicating a well developed cluster structure in these high-lying states in l4C. Further measurements of more states of this kind are suggested.