In this study, we apply relativistic effects to excitation of the lowest lying resonance states of argon gas with inclusion of absorption, polarization and exchange effects to the electrostatic distortion potential to form an overall complex distortion potential. The atomic wave functions are constructed in the multi-configuration Dirac Fork approach by modifying the general-purpose relativistic atomic structure code GRASP for numerical procedures, while differential cross sections (DCS) and integral cross sections (ICS) have been obtained using our new code RDWBA1. Our results are compared with available experimental and theoretical results in literature. Present results from this study predict that use of a complex distortion potential in the relativistic approach to excitation of argon generally lowers integral and differential cross sections as impact energies of the incident electron increases, specifically beyond 50 eV, and that the energy dependent polarization potential adopted in this work plays a major role in improving shapes of cross-sections at near threshold impact energies up to around 30 eV, where available distorted-wave methods fail to give satisfactory results when compared to experiments.

在这项研究中，我们将相对论效应应用于激发氩气的最低共振态，其中包括对静电畸变电位的吸收、极化和交换效应，以形成整体复杂的畸变势。通过修改用于数值程序的通用相对论原子结构代码 GRASP，在多配置 Dirac Fork 方法中构建原子波函数，而使用我们的新代码获得微分横截面 (DCS) 和积分横截面 (ICS) RDWBA1. 我们的结果与文献中可用的实验和理论结果进行了比较。