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Elastic scattering of low-energy electrons by N\(\)O

  • S.M.S. da Costa
  • M.H.F. Bettega

Abstract:

We report elastic integral, momentum transfer and differential cross sections for electron scattering by N2O for energies up to 50 eV. These results were obtained at the static-exchange approximation with the Schwinger Multichannel Method with Pseudopotentials [M.H.F. Bettega, L.G. Ferreira and M.A.P. Lima, Phys. Rev. A 47, 1111 (1993)]. In general our results show good agreement with experimental data and with other theoretical results but some discrepancies are found. We have also found a \(\) shape resonance around 4 eV in agreement with previous calculations using the R-matrix Method of Sarpal et al. [J. Phys. B 29, 857 (1996)]. On the other hand, the existence of a \(\) resonance at about 13 eV, clearly seen by the Schwinger Variational Iterative Method [Michelin et al., J. Phys. B 29, 2115 (1996)], can not be confirmed by our calculations. At this energy, our \(\) cross sections show a broad bump with no clear resonant behavior given by the eigenphase sum.

PACS. 34.80.Bm Elastic scattering of electrons by atoms and molecules - 34.80.Gs Molecular excitation and ionization by electron impact 

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Copyright information

© EDP Sciences, Springer-Verlag 1998

Authors and Affiliations

  • S.M.S. da Costa
    • 1
  • M.H.F. Bettega
    • 1
  1. 1.Departamento de Física, Universidade Federal do Paraná, UFPR, Caixa Postal 19081, 81531-990 Curitiba, Paraná, BrazilBR

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