Parameterization of Nuclear Hulthén Potential for Nucleus-Nucleus Elastic Scattering

• 来源期刊: 理论物理通讯（英文版）
• 年，卷（期）: 2018,（2）
• 页码范围: 203-210
• 页数: 8页
• 语种: 英文
• DOI: 10.1088/0253-6102/69/2/203

摘要

In contrast to Gaussian or Woods-Saxon potential a two-term four parameter nuclear Hulthén type interaction is considered to describe the α-α,α-3 He and α-3 H systems.By exploiting the phase function method,scattering phase shifts are computed up to ELab =100 MeV for the α-α system and ELab =15 MeV for α-aHe and α-3H systems.The S-wave phase shift δ0 for the α-α system tends to 2π and δ3/2-for the α-3He system tends to π,in the limit of zero energy.Reasonable agreements in phase shifts with the standard data are obtained with this simple potential model except for the 5/2-states of α-3He and α-3H systems.With an additional energy-dependent correction factor to our potential,a good agreement with experimental data is obtained for 5/2-states.We have also compared our results with the convenient Born approximations.