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Interference effects in the electron and positron scattering from molecules at intermediate and high energies

AutorBlanco, F.; García, Gustavo
Fecha de publicación8-jul-2015
CitaciónChemical Physics Letters 635: 321- 327 (2015)
Resumen© 2015 Elsevier B.V. All rights reserved. The independent atom model representation (IAM) in combination with the additivity rule (AR) is customary accepted as a good approximation to describe electron and positron scattering processes with polyatomic molecules at intermediate and high energies (typically above 100 eV). Within this approach, interference terms are not properly evaluated and are usually ignored in the cross section calculations. However, through a numerical solution of the Lippmann-Schwinger equation for three dimensional multicentre potentials we here demonstrate how interference terms can affect to the calculated differential and integral cross section values even at such relatively high energies. Practical corrections to the AR approach for both differential and integral electron and positron scattering cross section calculations from molecules are also proposed.
Descripción7 págs.; 6 figs.
Versión del editorhttp://dx.doi.org/10.1016/j.cplett.2015.06.066
Identificadoresdoi: 10.1016/j.cplett.2015.06.066
issn: 0009-2614
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