论文标题
分析$^{3} {\ rm he}（α，γ）^{7} {\ rm be} $和$^{3} {\ rm h}（\ rm h}（α，γ）^{7}
Analysis of the $^{3}{\rm He}(α, γ)^{7}{\rm Be}$ and $^{3}{\rm H}(α,γ)^{7}{\rm Li}$ astrophysical direct capture reactions in a modified potential-model approach
论文作者
论文摘要
直接辐射捕获过程的天体物理$ s $因素和反应速率$^{3} {\ rm he}（α，γ）^{7} {\ rm be} $} $和$^{3} {\ rm h} $^{7} {\ rm li} $元素是在修改后的两体电位模型的框架中估算的。结果表明，$ d $ waves中的相等$α-^{3} {\ rm he} $的适当修改可以改善直接$^{\ rm he} {\ rm He}（α，γ）^{7} {7} {7} $ rm rm rm a for的$^{\ rm he}的天体物理$ s $因子的描述。估计的$^{7} {\ rm li/h} $丰度比为$（4.89 \ pm 0.18）\ times 10^{ - 10} $非常吻合，与最近的测量$（5.0 \ pm 0.3）\ times 10^{ - 10}} $非常吻合。
Astrophysical $S$ factors and reaction rates of the direct radiative capture processes $^{3}{\rm He}(α, γ)^{7}{\rm Be}$ and $^{3}{\rm H}(α,γ)^{7}{\rm Li}$, as well as the primordial abundance of the $^{7}{\rm Li}$ element, are estimated in the framework of a modified two-body potential model. It is shown that suitable modification of phase-equivalent $α-^{3}{\rm He}$ potentials in the $d$ waves can improve the description of the astrophysical $S$ factor for the direct $^{3}{\rm He}(α, γ)^{7}{\rm Be}$ radiative capture reaction at energies above 0.5 MeV. An estimated $^{7}{\rm Li/H}$ abundance ratio of $(4.89\pm 0.18 )\times 10^{-10}$ is in very good agreement with the recent measurement of $(5.0\pm 0.3) \times 10^{-10}$ by the LUNA collaboration.
