论文标题
$^{7} $ li-nucleus潜力的微观研究
Microscopic study of the $^{7}$Li-nucleus potential
论文作者
论文摘要
对于$^7 $ li-nucleus交互系统，没有任何免费参数的光势以微观方法研究。它是通过在其密度分布上折叠$^{7} $ li的成分核子的显微镜光学电位而获得的。我们采用了依赖于同胞素的核子显微镜光学电位，该光学电位基于Skyrme核子核子有效相互作用，并使用绿色的功能方法得出了核子光学势。谐波振荡器壳模型用于描述$^7 $ li的内部波函数并获得核子密度分布。 $^7 $ li显微镜光学电位用于预测目标范围从$^{27} $ al到$^{208} $ PB的反应横截面和弹性散射分布和低于450 MEV的能量范围。通常，结果可以很好地重现测得的数据。此外，微观光电位与拟合当前现有的测量数据的全局现象学光学潜力相当。
The optical potential without any free parameters for $^7$Li-nucleus interaction system is studied in a microscopic approach. It is obtained by folding the microscopic optical potentials of the constituent nucleons of $^{7}$Li over their density distributions. We employ an isospin-dependent nucleon microscopic optical potential, which is based on the Skyrme nucleon-nucleon effective interaction and derived by using the Green's function method, to be the nucleon optical potential. Harmonic oscillator shell model is used to describe the internal wave function of $^7$Li and get the nucleon density distribution. The $^7$Li microscopic optical potential is used to predict the reaction cross sections and elastic scattering angular distributions for target range from $^{27}$Al to $^{208}$Pb and energy range below 450 MeV. Generally the results can reproduce the measured data reasonably well. In addition, the microscopic optical potential is comparable to a global phenomenological optical potential in fitting the presently existing measured data generally.
