$^{14}$ N与$^{56}$ Fe和$^{90}$ Zr弹性散射的阈值反常研究
Study of threshold anomaly in elastic scattering of $^{14}$N by $^{56}$Fe and $^{90}$Zr
摘要：
本文利用根据Ginocchio势构造的唯象核-核光学势研究了不同核系统在库仑势垒附近的弹性角分布。本文研究了$^{14}$ N+ $^{56}$ Fe和$^{14}$ N+ $^{90}$ Zr体系在几种碰撞能量下的弹性与卢瑟福微分截面比。我们的理论预测是很好的竞争力与实验数据，和显着小的虚部的潜力解释了弹性散射截面和阈值异常在这两个系统。
英文摘要：
We use a phenomenological nucleus-nucleus optical potential constructed in the light of a potential developed by Ginocchio to study the elastic angular distributions of different nuclear systems near Coulomb barrier. The differential cross section ratios of elastic to Rutherford are studied for systems $^{14}$N+$^{56}$Fe and $^{14}$N+$^{90}$Zr for several colliding energies. Our theoretical predictions are well competitive with the experimental data, and the significantly small imaginary part of the potential explains the elastic scattering cross section and threshold anomaly in both systems.
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