Angular Distribution for the 7Be(d,n)8B Reaction at Ec.m.=5.8 MeV and the S17(0) Factor for the 7Be(p, gamma )8B Reaction.
Angular Distribution for the 7Be(d,n)8B Reaction at Ec.m.=5.8 MeV and the S17(0) Factor for the 7Be(p, gamma )8B Reaction.
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DOI：
10.1103/physrevlett.77.611
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发表时间：
1996-07
影响因子：
8.6
通讯作者：
Liu;Bai;Zhou;Ma;Li;Wang;Chen;Tang;Han;Shen
中科院分区：
文献类型：
--
作者：
Liu;Bai;Zhou;Ma;Li;Wang;Chen;Tang;Han;Shen
利用中国原子能科学研究院放射性束流装置产生的{sup 7}Be({ital d},{ital n}){sup 8}B在{ital E}{sub c.m}=5.8MeV处的微分截面进行了测量。利用二维位置敏感的{Delta}{ital E}-{ital E}反望远镜对{sup 8}Be离子进行了全几何探测。测定反应截面为58{正负}8mb。用畸变波玻恩近似计算方法对角分布数据进行了分析。从实验数据中提取渐近归一化常数，得到{sup 7}Be({ital p},{gamma}){sup 8}B反应的天体物理{ital S}{sub 17}(0)因子为27.4{plus_minus}4.4eVb。{版权所有}{ital 1996美国物理学会。}
The differential cross section for the {sup 7}Be({ital d},{ital n}){sup 8}B reaction at {ital E}{sub c.m.}=5.8MeV has been measured using the {sup 7}Be beam generated by the radioactive nuclear beam facility at China Institute of Atomic Energy. The {sup 8}Be ions were detected in full geometry with a two-dimensional position sensitive {Delta}{ital E}-{ital E} counter telescope. The reaction cross section was determined to be 58{plus_minus}8mb. The angular distribution data were analyzed with the distorted-wave Born approximation calculation. The astrophysical {ital S}{sub 17}(0) factor for the {sup 7}Be({ital p},{gamma}){sup 8}B reaction was derived to be 27.4{plus_minus}4.4eVb through the asymptotic normalization constant extracted from the experimental data. {copyright} {ital 1996 The American Physical Society.}