High resolution 80 Se(n, ? ) cross section measurement at CERN n_TOF
High resolution 80 Se(n, ? ) cross section measurement at CERN n_TOF
复制标题
CERN n_TOF 的高分辨率 80 Se(n, ? ) 横截面测量
DOI：
10.1051/epjconf/202328401001
复制
发表时间：
2023
影响因子：
--
通讯作者：
Babiano-Suarez V
中科院分区：
文献类型：
--
作者：
Babiano-Suarez V
接近过程分支点的同位素的中子俘获截面测量对于理解这种核合成机制至关重要，大约 50% 的比铁重的元素是通过该机制产生的。我们在这篇文章中首次展示了 80Se(n, γ) 截面的高分辨率测量结果，其中报告了 98 个以前从未测量过的共振。因此，与天体物理学 KADoNiS 数据库中采用的先前接受值相比，获得了精确十倍的 MACS 值。
Neutron capture cross section measurements of isotopes close tos-process branching-points are of fundamental importance for the understanding of this nucleosynthesis mechanism through which about 50% of the elements heavier than iron are produced. We present in this contribution the results corresponding to the high resolution measurement, for first time ever, of the80Se(n, γ) cross section, in which 98 resonances never measured before have been reported. As a consequence, ten times more precise values for the MACS have been obtained compared to previous accepted value adopted in the astrophysical KADoNiS data base.