论文标题
在假想时间依赖性平均场理论中的12C+12C亚屏障融合横截面的计算
Calculation of the 12C+12C sub-barrier fusion cross section in an imaginary time-dependent mean field theory
论文作者
论文摘要
12C+12C子弹药融合横截面是在使用Feynman Path积分方法的基于时间依赖的Hartree-fock（TDHF）的经典模型的框架内计算的。将修饰的天体物理S*因子与直接和间接的实验结果进行比较。与直接数据达成了良好的协议。在较低的能量区域，最近对使用特洛伊木马法（THM）获得的实验数据的分析导致对比结果，该模型预测了这些结果之间的S*因子。在THM数据中揭示的低能共振被添加到计算中，并计算了Gamow区域中的相对反应速率。详细讨论了不同共振的作用，并研究了它们对与恒星进化相关的温度下反应速率的影响。
The 12C+12C sub-barrier fusion cross section is calculated within the framework of a Time Dependent Hartree-Fock (TDHF) based classical model using the Feynman Path Integral Method. The modified astrophysical S*-factor is compared to direct and indirect experimental results. A good agreement with the direct data is found. In the lower energy region, where recent analyses of experimental data obtained with the Trojan Horse Method (THM) lead to contrasting results, the model predicts an S* factor half way between those results. Low energy resonances revealed in the THM data are added to the calculation and the relative reaction rate in the Gamow region is calculated. The role of different resonances is discussed in detail and their influence on the reaction rate at temperatures relevant to stellar evolution is investigated.
