Relative probabilities of breakup channels in reactions of^(6.7)Li with^(209)Biat energies around and above the Coulomb barrier  

作　　者：Yong-Jin Yao Cheng-Jian Lin Lei Yang Nan-Ru Ma Dong-Xi Wang Gao-long Zhang Guang-Xin Zhang Hui-Ming Jia Feng Yang Fu-Peng Zhong Pei-Wei Wen Xiu-Bo Qin Hong-Ming Zhao 姚永进;林承键;杨磊;马南茹;王东玺;张高龙;张广鑫;贾会明;杨峰;钟福鹏;温培威;秦秀波;赵宏鸣(State Key Laboratory of Software Development Environment,Beihang University,Beijing 100191,China;School of Physics,Beihang University,Bejing 100191,China;China Institute of Atomic Energy,Beijing 102413,China;Guangxi Normal University,Guangxi 541004,China;X Lab,the Second Academy of CASIC,Bejjing 100854,China)

机构地区：[1]State Key Laboratory of Software Development Environment,Beihang University,Beijing 100191,China [2]School of Physics,Beihang University,Bejing 100191,China [3]China Institute of Atomic Energy,Beijing 102413,China [4]Guangxi Normal University,Guangxi 541004,China [5]X Lab,the Second Academy of CASIC,Bejjing 100854,China

出　　处：《Chinese Physics C》2021年第5期141-148,共8页中国物理C（英文版）

基　　金：National Natural Science Foundation of China(11635015,U1832130,11975040);State Key Laboratory of Software Development Environment(SKLSDE-2020ZX-16);the Continuous Basic Scientific Research Project(WDJC-2019-13);the Leading Innovation Project(LC192209000701,LC202309000201)。

摘　　要：Coincidence measurements of breakup fragments in reactions of^(6.7)with^(209)Bi at energies around and above the Coulomb barrier were carried out using a large solid-angle covered detector array.Through the Q values along with the relative energies of the breakup fragments,different breakup components(prompt breakups and delayed breakups)and different breakup modes(α+t,α+d,α+p,andα+α)are distinguished.A new breakup mode,α+t,is observed in^(6)Li-induced reactions at energies above the Coulomb barrier.Correlations between breakup modes and breakup components as well as their variations with the incident energy are investigated.The results will help us better understand the breakup effects of weakly bound nuclei on the suppression of a complete fusion,particularly for the above-barrier energies.

关 键 词：breakup mechanism coincidence measurement weakly bound nucleus 

分 类 号：O572.212[理学—粒子物理与原子核物理]