Elastic cross sections for low-energy electron collisions with tetrahydropyran

Regular Article
Part of the following topical collections:
  1. Topical Issue: Advances in Positron and Electron Scattering

Abstract

We report on calculated elastic cross sections for low-energy electron collisions with the cyclic ether tetrahydropyran (C5H10O). The calculations were carried out with the Schwinger multichannel method implemented with norm-conserving pseudopotentials in the static-exchange-polarization approximation for energies up to 20 eV. Our cross sections are compared with previous results obtained for cyclohexane and 1,4-dioxane, since the three molecules present similar structures. The calculated differential cross sections for these three molecules present similarities, except at low scattering angles, where the differential cross sections of tetrahydropyran present a sharp increase due to the permanent dipole moment of the molecule. The similarities observed in the cross sections reveal that the molecular geometry plays an important role in the description of scattering process. We also compared our calculated elastic integral cross section for tetrahydropyran with experimental total cross sections data available in the literature and found a good qualitative agreement between both results.

Graphical abstract

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Copyright information

© EDP Sciences, SIF, Springer-Verlag Berlin Heidelberg 2016

Authors and Affiliations

  • Alessandra Souza Barbosa
    • 1
  • Márcio H.F. Bettega
    • 1
  1. 1.Departamento de Física, Universidade Federal do ParanáCuritibaBrazil

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