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Type: Artigo de periódico
Title: Elastic cross sections for low-energy e(-)-CH4 collisions
Author: Machado, LE
Lee, MT
Brescansin, LM
Abstract: Recently we have extended our codes based on the Schwiager variational iterative method in order to study elastic electron scattering by non-planar molecules with symmetries reducible to the C-2v point group and also to include a correlation-polarization contribution to the electron-molecule interaction potential. In this work we report the first application of these newly extended codes to the calculation of cross sections for low-energy elastic scattering of electrons by methane. Differential, integral and momentum-transfer cross sections were calculated in the 0.1-50 eV incident energy range. Comparison of our results with the extensive available data, both experimental and theoretical, reveals the reliability of our method. Particularly, the Ramsauer minimum at around 0.4 eV and the resonance structure at around 8 eV are well reproduced in our calculations.
Country: Brasil
Editor: Sociedade Brasileira Fisica
Citation: Brazilian Journal Of Physics. Sociedade Brasileira Fisica, v. 28, n. 2, n. 111, n. 121, 1998.
Rights: fechado
Date Issue: 1998
Appears in Collections:Unicamp - Artigos e Outros Documentos

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