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Elastic electron scattering from molecular potentials

1980; American Institute of Physics; Volume: 73; Issue: 8 Linguagem: Inglês

10.1063/1.440612

1520-9032

D. A. Kohl, M. M. Arvedson,

Atomic and Molecular Physics

Fink and co-workers have reported a molecular electron density function for the nitrogen molecule which was derived from an experimental differential electron scattering cross section. The transformation of the data was accomplished by assuming that the first Born approximation could be used to describe the scattering process. This procedure is analyzed by considering a higher order treatment of the elastic scattering from two-center potentials. When the experiment is simulated by considering a model potential and 40 keV electrons, the errors in the Born treatment are found to be comparable to typical experimental uncertainties. However, corrections to the Born cross section would be significant at lower incident energies or if experimental accuracy were improved.