| Revista: | Brazilian journal of physics |
| Base de datos: | PERIÓDICA |
| Número de sistema: | 000168801 |
| ISSN: | 0103-9733 |
| Autores: | Lino, Jorge L.S1 Lima, Marco A.P2 |
| Instituciones: | 1Universidade Braz Cubas, Nucleo de Pesquisas em Matematica e Matematica Aplicada, Mogi das Cruzes, Sao Paulo. Brasil 2Universidade Estadual de Campinas, Instituto de Física, Campinas, Sao Paulo. Brasil |
| Año: | 2000 |
| Periodo: | Jun |
| Volumen: | 30 |
| Número: | 2 |
| Paginación: | 432-437 |
| País: | Brasil |
| Idioma: | Inglés |
| Tipo de documento: | Artículo |
| Enfoque: | Analítico |
| Resumen en inglés | We report elastic differential cross sections (DCS) for the scattering of electron by H2, CH4, C2H4, SiH4, and H2O in the 5 to 20 eV energy range. These cross sections were obtained using the Schwinger variational principle. In our procedures the scattering wave function is expanded as a combination of plane waves. In the present implementation the exchange potential and polarization effects are not considered and all results are obtained at the static level of approximation. For all molecules, except H2, our calculated DCS agree reasonably well with avaliable experimental data and with other theoretical results (obtained at the static-exchange level of approximation). Our study suggests that the Schwinger variational principle with plane wave expansion may become an efficient method for studying electron-molecule scattering |
| Disciplinas: | Física y astronomía |
| Palabras clave: | Física atómica y molecular, Colisiones electrón-molécula, Principios variacionales, Schwinger, Sección eficaz, Dispersión electrónica |
| Keyword: | Physics and astronomy, Atomic and molecular physics, Electron-molecule collisions, Variational principles, Schwinger, Cross section, Electron scattering |
| Texto completo: | Texto completo (Ver HTML) |
