| Neutron Spectroscopic Factors of ^7Li and Astrophysical ^6Li（n,γ）^7Li Reaction Rates |
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| 作者姓名： | 苏俊 李志宏 郭冰 白希祥 李志常 刘建成 王友宝 连钢 曾晟 王宝祥 颜胜权 李云居 李二涛 樊启文 柳卫平 |
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| 作者单位： | China Institute of Atomic Energy, PO Box 275（10）, Beijing 102413 |
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| 基金项目： | Supported by the National Basic Research Program of China under Grant No 2007CB815003, the National Natural Science Foundation of China under Grant Nos 10675173, 10720101076, 10735100 and 10975193. |
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| 摘 要： | Angular distributions of the ^7Li（^6Li, ^6Li）^7Li elastic scattering and the ^7Li（^6Li, ^7Lig.s.）^6Li, ^7Li（^6Li, ^7Li0.48）^6Li transfer reactions at Ec.m. = 23.7 MeV are measured with the Q3D magnetic spectrograph. The optical potential of ^6Li ＋ ^7Li is obtained by fitting the elastic scattering differential cross sections. Based on the distorted wave Born approximation （DWBA） analysis, spectroscopic factors of ^7Li =^6Li n are determined to be 0.73 ± 0.05 and 0.90 ± 0.09 for the ground and first exited states in ^7Li, respectively. Using the spectroscopic factors, the cross sections of the ^6 Li（n, γ0,1）^7 Li direct neutron capture reactions and the astrophysical ^6Li（n, γ）^7 Li reaction rates are derived.
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| 关 键 词： | 天体物理学 反应率 光谱 弹性散射微分截面 中子 扭曲波玻恩近似 Q3D磁谱仪 转移反应 |
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