标题： 扩展量子扩散方法在天体物理反应中的应用 显示英文标题

标题： Extended quantum diffusion approach to reactions of astrophysical interests

摘要： 量子扩散方法被扩展到轻核和中等质量核的低能聚变（俘获）反应。 摩擦参数随轰击能量的变化依赖关系被考虑进去。 对于极端亚势垒能量下的俘获概率，得到了一个简单的解析表达式。 计算得到的截面与实验数据有很好的一致性。 量子扩散方法和WKB方法计算得到的聚变激发函数在天体物理$S$因子表示中进行了比较并展示。 显示英文摘要

摘要： The quantum diffusion approach is extended to low energy fusion (capture) reactions of light- and medium-mass nuclei. The dependence of the friction parameter on bombarding energy is taken into account. A simple analytic expression is obtained for the capture probability at extreme sub-barrier energies. The calculated cross-sections are in a good agreement with the experimental data. The fusion excitation functions calculated within the quantum diffusion and WKB approaches are compared and presented in the astrophysical $S$-factor representation.