论文标题
通过$^{22} $ mg（$α$，$ p $）$^{22} $ mg等待点与X射线爆发核合成有关
Study of the $^{22}$Mg waiting point relevant for x-ray burst nucleosynthesis via the $^{22}$Mg($α$,$p$)$^{25}$Al reaction
论文作者
论文摘要
$^{22} $ mg（$α$，$ p $）$^{25} $ al反应率已被确定为理解类型I X射线突发（XRBS）中核合成流动的主要不确定性来源。我们使用多采样电离室（音乐）报告了3.3-6.9 MEV质量中心能量范围（音乐），在3.3-6.9 MEV质量中心能量范围内，直接测量了该反应的能量和角度集成的横截面。新的$^{22} $ mg（$α$，$ p $）$^{25} $反应率是$ \ sim $ 4的因素，比以前与XRB相关的温度中对该反应的直接测量高4倍，导致$^{22} $ mg等待点$
The $^{22}$Mg($α$,$p$)$^{25}$Al reaction rate has been identified as a major source of uncertainty for understanding the nucleosynthesis flow in Type-I x-ray bursts (XRBs). We report a direct measurement of the energy- and angle-integrated cross sections of this reaction in a 3.3-6.9 MeV center-of-mass energy range using the MUlti-Sampling Ionization Chamber (MUSIC). The new $^{22}$Mg($α$,$p$)$^{25}$Al reaction rate is a factor of $\sim$4 higher than the previous direct measurement of this reaction within temperatures relevant for XRBs, resulting in the $^{22}$Mg waiting point of x-ray burst nucleosynthesis flow to be significantly bypassed via the ($α,p$) reaction
