Experimental Study of Beta-Delayed Proton Emission of 36,37Ca  

作　　者：孙立杰 林承键 徐新星 王建松 贾会明 杨峰 杨彦云 杨磊 包鹏飞 张焕乔 金仕纶 吴振东 张宁涛 陈思泽 马军兵 马朋 马南茹 刘祖华 

机构地区：[1]China Institute of Atomic Energy [2]Institute of Modern PhysicsChinese Academy of Sciences

出　　处：《Chinese Physics Letters》2015年第1期30-34,共5页中国物理快报（英文版）

基　　金：Supported by the National Basic Research Program of China under Grant No 2013CB834404;the National Natural Science Foundation of China under Grant Nos 11375268,11475263,U1432246 and U1432127

摘　　要：The investigation of beta-delayed proton decay mode has become a powerful probe to study the proton-rich nuclei and their nuc/eax structure. To study exotic nuclei with extremely low purity produced by the Radioactive Ion Beam Line in Lanzhou, we perform an experiment of beta-delayed proton emission of 36,37^Ca under a high-intensity continuous-beam mode. Ions are implanted into a double-sided silicon strip detector, where the subsequent decays are correlated to the preceding implantations in time sequence. The energy spectra of delayed protons from 36,37^Caβ decay, half-lives and decay branching ratios axe measured. The experimental results confirm the previous literature data and some improved results are obtained as well, demonstrating the feasibility of our detection approach and the reliability of our data analysis procedure. This allows for the development of more powerful detection arrays and further research on nuclei closer to proton-drip line on the basis of present work.The investigation of beta-delayed proton decay mode has become a powerful probe to study the proton-rich nuclei and their nuc/eax structure. To study exotic nuclei with extremely low purity produced by the Radioactive Ion Beam Line in Lanzhou, we perform an experiment of beta-delayed proton emission of 36,37^Ca under a high-intensity continuous-beam mode. Ions are implanted into a double-sided silicon strip detector, where the subsequent decays are correlated to the preceding implantations in time sequence. The energy spectra of delayed protons from 36,37^Caβ decay, half-lives and decay branching ratios axe measured. The experimental results confirm the previous literature data and some improved results are obtained as well, demonstrating the feasibility of our detection approach and the reliability of our data analysis procedure. This allows for the development of more powerful detection arrays and further research on nuclei closer to proton-drip line on the basis of present work.

关 键 词：Experimental Study of Beta-Delayed Proton Emission of CA 

分 类 号：O571.3[理学—粒子物理与原子核物理]