The (n, γ) Cross Section of 7Li
The (n, γ) Cross Section of 7Li
复制标题
7Li的(n,γ)截面
DOI：
10.1086/306367
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发表时间：
1998
期刊：
影响因子：
--
通讯作者：
A. Mengoni
中科院分区：
文献类型：
--
作者：
M. Heil;F. Käppeler;M. Wiescher;A. Mengoni
7Li（n，γ）8Li反应与非均匀大爆炸模型中的原始核合成有关，也与太阳中微子问题有关，其中镜像反应7Be（p，γ）8Be负责产生高能太阳中微子。在中子能量为En = 5 meV和En = 54 keV时测量横截面。利用现有的结果和对以前测量的重新分析，可以解决现有数据之间的差异，并可以以更高的精度确定横截面。
The 7Li(n, γ)8Li reaction has relevance for primordial nucleosynthesis in inhomogeneous big bang models as well as in connection with the solar neutrino problem, where the mirror reaction 7Be(p, γ)8Be is responsible for the production of high-energy solar neutrinos. The cross section was measured at neutron energies of En = 5 meV and En = 54 keV. With the present results and a reanalysis of a previous measurement, the discrepancies among existing data could be resolved and the cross section can be determined with improved accuracy.