Evaluation of experimental constraints on the Ti44(α,p)V47 reaction cross section relevant for supernovae
Evaluation of experimental constraints on the Ti44(α,p)V47 reaction cross section relevant for supernovae
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与超新星相关的 Ti44(α,p)V47 反应截面的实验约束评估
DOI：
10.1103/physrevc.102.035806
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发表时间：
2020
影响因子：
3.1
通讯作者：
Schmidt, Konrad
中科院分区：
文献类型：
--
作者：
Chipps, K. A.;Adsley, P.;Couder, M.;Hix, W. R.;Meisel, Z.;Schmidt, Konrad
由于其在核心坍缩超新星（CCSNe）中作为天文观测的重要性，必须对其产生和破坏的反应进行很好的约束。通常，在没有实验截面的情况下，采用Hauser-Feshbach等统计模型计算，但这种采用率的变化可能很大。这里，将文献数据与反应截面的统计模型计算进行比较，并用于约束与CCSNe相关的温度下可能的反应速率变化。给出了有针对性的未来测量的建议。
Due to its importance as an astronomical observable in core-collapse supernovae (CCSNe), the reactions producing and destroyingmust be well constrained. Generally, statistical model calculations such as Hauser-Feshbach are employed when experimental cross sections are not available, but the variation in such adopted rates can be large. Here, data from the literature is compared with statistical model calculations of thereaction cross section and used to constrain the possible reaction rate variation over the temperatures relevant to CCSNe. Suggestions for targeted future measurements are given.