Direct measurement of the resonance strengths and branching ratios of low-energy(p,γ)reactions on Mg isotopes

作     者：Hao Zhang Zhi-Hong Li Jun Su Yun-Ju Li Chen Chen Long Zhang Fu-Qiang Cao Yang-Ping Shen Wei Nan Wei-KeNan Xin-Yue Li Li-Hua Chen Gang Lian Bao-Qun Cui Bing Guo Wei-Ping Liu 张昊;李志宏;苏俊;李云居;陈晨;张龙;曹富强;谌阳平;南巍;南威克;李鑫悦;陈立华;连刚;崔保群;郭冰;柳卫平

作者机构：China Institute of Atomic EnergyBeijing 102413China University of Chinese Academy of ScienceBeijing 101408China Beijing Normal UniversityBeijing 100875China 

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

年 卷 期：2021年第45卷第8期

页      面：132-138页

核心收录：

学科分类：07[理学] 070401[理学-天体物理] 0704[理学-天文学] 

基　　金：Supported by the National Natural Science Foundation of China(11490563,11961141003) the Continuous Basic Scientific Research Project(WDJC-2019-13) 

主　　题：stellar hydrogen burning resonance reactions radiative capture 

摘      要：Proton capture reactions on Mg isotopes are significant in the Mg-Al cycle in stellar *** particular,the resonance strengths and branching ratios of low-energy resonances in 23Mg(p,γ)26Al reactions determine the production of which is one of the most important long-lived radioactive nuclei in nuclear *** this article,we report our first experiment using the intense proton beam of approximately 2 mA provided by the JUNA accelerator ground laboratory and a new technique that can minimize the composition change of targets under intense beam *** resonance strengths and branching ratios of E=214,304,and 326 keV resonances in the reactions of 2~4Mg(p,γ)25Al,25Mg(p,γ)26Al,and 26Mg(p,γ)27Al,respectively,were measured with high *** success of this experiment provides a good calibration for the nuclear astrophysical experiment at the Jinping underground laboratory.