Bayesian analysis of capture reactions $$\varvec{^3}\hbox {He}\varvec{(\alpha ,\gamma )^7}\hbox {Be}$$ and $$\varvec{^3}\hbox {H}\varvec{(\alpha ,\gamma )^7}\hbox {Li}$$
Bayesian analysis of capture reactions $$\varvec{^3}\hbox {He}\varvec{(\alpha ,\gamma )^7}\hbox {Be}$$ and $$\varvec{^3}\hbox {H}\varvec{(\alpha ,\gamma )^7}\hbox {Li}$$
复制标题
捕获反应的贝叶斯分析 $$varvec{^3}hbox {He}varvec{(alpha ,gamma )^7}hbox {Be}$$ 和 $$varvec{^3}hbox {
DOI：
10.1140/epja/s10050-020-00113-z
复制
发表时间：
2020
期刊：
影响因子：
--
通讯作者：
Rupak, Gautam
中科院分区：
文献类型：
--
作者：
Premarathna, Pradeepa;Rupak, Gautam
对辐射俘获反应进行了贝叶斯分析，并对阈值截面进行了推断。我们做一个模型比较两个竞争的有效场论功率计数的捕获反应。这两种功率计数的不同之处在于两体电磁流的贡献。在一种功率计数中，两体电流以领先阶数做出贡献，而在另一种功率计数中，它们以更高阶数做出贡献。如果在分析中考虑入射通道中的弹性散射数据，则前者是有利的。没有弹性散射数据的限制，两种功率计数同样有利。对于，第一个功率计数与两体电流的贡献在领先的顺序是有利的，或没有弹性散射数据的约束。
Bayesian analysis of the radiative capture reactionsandare performed to draw inferences about the cross sections at threshold. We do a model comparison of two competing effective field theory power countings for the capture reactions. The two power countings differ in the contribution of two-body electromagnetic currents. In one power counting, two-body currents contribute at leading order, and in the other they contribute at higher orders. The former is favored forif elastic scattering data in the incoming channel is considered in the analysis. Without constraints from elastic scattering data, both the power countings are equally favored. For, the first power counting with two-body current contributions at leading order is favored with or without constraints from elastic scattering data.