Comparison of two screening corrections to the additivity rule for the calculation of electron scattering from polyatomic molecules |
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| Authors: | F Blanco J Rosado G García |
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| Institution: | a Departamento de Física Atómica, Molecular y Nuclear, Facultad de Ciencias Físicas, Universidad Complutense de Madrid, Avda. Complutense s/n, E-28040 Madrid, Spain
b Instituto de Matemáticas y Física Fundamental, Consejo Superior de Investigaciones Científicas, C. Serrano 121, E-28006 Madrid, Spain |
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| Abstract: | The SCAR and EGAR procedures have been proposed in order to extend to lower energies the applicability of the additivity rule for calculation of electron-molecule total cross sections. Both those approximate treatments arise after considering geometrical screening corrections due to partial overlapping of atoms in the molecule, as seen by the incident electrons. The main features, results and limitations of both treatments are put here in comparison by means of their application to some different sized species. |
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| Keywords: | Additivity rule Screening correction Electron-molecule total cross section |
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