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Elastic scattering analysis of isobar nuclei A = 6 projectiles on 12C using different models of optical potential
Nuclear Physics A ( IF 1.7 ) Pub Date : 2021-08-19 , DOI: 10.1016/j.nuclphysa.2021.122300
Ahmed Hammad Amer 1, 2 , Yu.E. Penionzhkevich 1, 3
Affiliation  

In this research, we have extracted a new systematic global description for the fifteen data sets of the 6Li+12C elastic scattering angular distribution in the energy range of 5.8–600 MeV, and for the seven data sets of the 6He+12C elastic scattering in the energy range of 5.9–493.8 MeV using the simple optical model OM potential with fixed radii parameters. We have reanalyzed the two nuclear systems using a microscopic method within the framework of the double folding São Paulo potential (SPP) and the double folding cluster model (renormalized DFC1 and non-renormalized DFC2), prompted by the cluster structure of both (6He and 6Li) nuclei. We have adding the dynamic polarization potential (DPP) to DFC2, for well reproducing the experimental data, because the elastic scattering of weakly bound nuclei (6He and 6Li) is strongly affected by the coupling to other reaction channels, such as break-up. We have studied the effect of hallo properties of 6He by comparing the reflexion coefficients derivatives and the reduced cross sections (according to different prescriptions) of the two projectiles. The energy dependence for the reaction cross sections σR, real and imaginary volume integrals of the considered reactions and comparing it to the previously reported ones have been investigated. The dispersion relation between real and imaginary parts of optical potential has been investigated for both studied systems.



中文翻译:

使用不同光势模型对等压核 A = 6 弹丸在 12C 上的弹性散射分析

在这项研究中,我们对能量范围为 5.8-600 MeV的6 Li+ 12 C 弹性散射角分布的 15 个数据集以及6 He+ 12 C 弹性散射的7个数据集提取了新的系统全局描述。使用具有固定半径参数的简单光学模型 OM 势在 5.9-493.8 MeV 的能量范围内进行散射。我们在双折叠圣保罗电位 (SPP) 和双折叠簇模型(重整化 DFC1 和非重整化 DFC2)的框架内使用微观方法重新分析了这两个核系统,这是由两者的簇结构(6 He和6Li) 核。我们将动态极化电位 (DPP) 添加到 DFC2,以便很好地再现实验数据,因为弱结合核(6 He 和6 Li)的弹性散射受到与其他反应通道耦合的强烈影响,例如断裂-向上。我们通过比较两种弹丸的反射系数导数和减小的横截面(根据不同的处方),研究了6 He的光环特性的影响。反应截面的能量依赖性σ电阻,已经研究了所考虑反应的实部和虚部体积积分,并将其与先前报道的积分进行了比较。已经研究了两个研究系统的光势实部和虚部之间的色散关系。

更新日期:2021-08-27
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