Abstract:

Understanding the interaction between electrons and atomic or molecular targets is crucial for various applications in plasma physics, astrophysics, radiation physics, and material sciences. This paper presents a detailed study on the theoretical and computational approaches used to determine cross-sections for electron impact on atomic and molecular systems. We review key methodologies, including the Born approximation, the distorted-wave approximation, and the R-matrix method, among others. A comparative analysis of calculated cross-sections with experimental data is provided, highlighting the strengths and limitations of different computational techniques.

Description:

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