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Type: Artigo de periódico
Title: Application Of The Method Of Continued Fractions To Multichannel Studies On Electronic Excitation Of H2 By Electron Impact
Author: Machado A.M.
Fujimoto M.M.
Taveira A.M.A.
Brescansin L.M.
Lee M.-T.
Abstract: In the present work, the method of continued fractions at a five-channel close-coupling level of approximation is applied to study the low-energy electron-impact excitation in linear molecules. Particularly, cross sections for the X1Σg +→b3Σ u +,X1Σg +→a3Σg +, and X1Σg +→c3Πu transitions in H2 in the (15-40)-eV energy range are reported. As in our early two-state studies, no orthogonality constraint between the bound and continuum orbitals is imposed and the one-electron exchange terms are considered explicitly. In general, our calculated cross sections are in good agreement with the results obtained by the four-state Kohn variational method. Comparison between our calculated results with available experimental data is encouraging. ©2001 The American Physical Society.
Rights: aberto
Identifier DOI: 10.1103/PhysRevA.63.032707
Date Issue: 2001
Appears in Collections:Unicamp - Artigos e Outros Documentos

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