IAFE   05512
INSTITUTO DE ASTRONOMIA Y FISICA DEL ESPACIO
Unidad Ejecutora - UE
congresos y reuniones científicas
Título:
Electron impact ionization in the Temkin Poet model with Sturmian functions
Autor/es:
JUAN MARTIN RANDAZZO, ANA LAURA FRAPICCINI, GUSTAVO GASANEO, DARIO MITNIK, LORENZO UGO ANCARANI, FLAVIO COLAVECCHIA
Lugar:
Paris
Reunión:
Conferencia; 63rd Annual Gaseous Electronics Conference; 2010
Institución organizadora:
APS
Resumen:
We present accurate results for the electron impact ionization of atomic hydrogen, within the Temkin Poet model, using Generalized Sturmian functions (GSF). The GSF are solutions of a two-body radial Schrodinger equation where the energy is fixed, and the magnitude of an interaction is considered as eigenvalue. These functions are able to include almost any physically sound asymptotic conditions in the radial electron coordinates. In the present case, we set outgoing flux conditions with Coulomb phase. The GSF are used in a Configuration Interaction scheme to expand the scattering wave of the process. We present several benchmark tests, and compute single differential cross sections in terms of the energies of the ejected electron. Our results for 54.4 eV incident energy exhibit excellent agreement with those obtained within the External Complex Scaling and Finite Difference Method.