Published January 1, 2014 | Version v1
Journal article Open

Comprehensive experimental and theoretical study of double-differential cross sections for CH4 at 300 and 350 eV incident electron energies

  • 1. Afyon Kocatepe Univ, Sci & Arts Fac, Dept Phys, eCOL Lab, Afyon, Turkey
  • 2. Ecole Preparatoire Sci & Tech, Tilimsen, Algeria
  • 3. Univ Abou Bekr Belkaid Tlemcen, Tilimsen, Algeria
  • 4. Dr Tahar Moulay Univ, Saida, Algeria
  • 5. Ctr Univ Naama, Naama, Algeria

Description

For the first time in the literature, the angular distribution of the double-differential cross section of a methane molecule is measured and calculated at 300 and 350 eV electron impact energies. Experiments were carried out with a conventional electron spectrometer. The theoretical results were obtained using the first Born approximation and the one-Coulomb wave model corrected by the Gamow factor to take into account the post-collision interaction between the outgoing electrons. The agreement between experiment and theory indicates that the one-Coulomb wave model is a reliable theoretical approach to describe electron-methane interactions.

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