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Type: Artigo de periódico
Title: Cross Sections For Rotational Excitation Of Ch4 By 320-ev Electrons
Author: Brescansin L.M.
Lima M.A.P.
McKoy V.
Abstract: We report calculated differential, integral, and momentum-transfer cross sections for rotational excitation of CH4 by electron impact in the 320-eV energy range. These cross sections were derived from fixed-nuclei scattering amplitudes obtained using the Schwinger multichannel method. Our results represent the first rotational excitation cross sections obtained for a polyatomic molecule using entirely ab initio procedures. The cross sections agree well with those of earlier model-potential calculations. A comparison of these calculated cross sections with available experimental data is in general encouraging, but some discrepancies remain. © 1989 The American Physical Society.
Rights: aberto
Identifier DOI: 10.1103/PhysRevA.40.5577
Date Issue: 1989
Appears in Collections:Unicamp - Artigos e Outros Documentos

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