Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/327
Type: Artigo de periódico
Title: Low-energy electron scattering from methanol and ethanol
Author: KHAKOO, M. A.
BLUMER, J.
KEANE, K.
CAMPBELL, C.
SILVA, H.
LOPES, M. C. A.
WINSTEAD, C.
MCKOY, V.
COSTA, R. F. da
FERREIRA, L. G.
LIMA, M. A. P.
BETTEGA, M. H. F.
Abstract: Measured and calculated differential cross sections for elastic (rotationally unresolved) electron scattering from two primary alcohols, methanol (CH(3)OH) and ethanol (C(2)H(5)OH), are reported. The measurements are obtained using the relative flow method with helium as the standard gas and a thin aperture as the collimating target gas source. The relative flow method is applied without the restriction imposed by the relative flow pressure conditions on helium and the unknown gas. The experimental data were taken at incident electron energies of 1, 2, 5, 10, 15, 20, 30, 50, and 100 eV and for scattering angles of 5 degrees-130 degrees. There are no previous reports of experimental electron scattering differential cross sections for CH(3)OH and C(2)H(5)OH in the literature. The calculated differential cross sections are obtained using two different implementations of the Schwinger multichannel method, one that takes all electrons into account and is adapted for parallel computers, and another that uses pseudopotentials and considers only the valence electrons. Comparison between theory and experiment shows that theory is able to describe low-energy electron scattering from these polyatomic targets quite well.
Country: Estados Unidos
Editor: AMER PHYSICAL SOC
Citation: PHYSICAL REVIEW A, v.77, n.4, 2008
Rights: fechado
Identifier DOI: 10.1103/PhysRevA.77.042705
Address: http://apps.isiknowledge.com/InboundService.do?Func=Frame&product=WOS&action=retrieve&SrcApp=EndNote&UT=000255457100078&Init=Yes&SrcAuth=ResearchSoft&mode=FullRecord
http://dx.doi.org/10.1103/PhysRevA.77.042705
Date Issue: 2008
Appears in Collections:IFGW - Artigos e Materiais de Revistas Científicas

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