Artículos de revistas
Low-energy electron collisions with ethane
Registro en:
Brazilian Journal Of Physics. Soc Brasileira Fisica, v. 39, n. 1, n. 69, n. 73, 2009.
0103-9733
WOS:000265634800013
Autor
Bettega, MHF
da Costa, RF
Lima, MAP
Institución
Resumen
Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) We employed the Schwinger multichannel method to compute elastic cross sections for low-energy electron collisions with ethane (C(2)H(6)). The calculations were carried out in the static-exchange and static-exchange plus polarization approximations for energies up to 12 eV. Our integral cross section shows good agreement with experimental data and with theoretical results for energies above 5 eV. There are some differences for energies below 5 eV between our results and the available experimental and theoretical results. Our differential cross sections also agree well with the experiment and with theory for energies above 5 eV; below this energy our results agree in shape, but are smaller than the available experimental and theoretical results. We discuss possible reasons for these discrepancies. We found a broad structure in the integral cross section around 8.5 eV and also a Ramsauer-Townsend minimum around 0.2 eV. These results are in agreement with the experimental observations and theoretical results. 39 1 69 73 Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) Parana State agency Fundacao Araucaria Finep CENAPAD-SP Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)