SDCS for the Temkin-Poet model using Sturmian functions

A. L. FRAPICCINI, J. M. RANDAZZO, F. D. COLAVECCHIA AND G. GASANEO

Dublin

Congreso; International Symposium on (e,2e), Double Photoionization and Related Topics and 16th International Symposium on Polarization and Correlation in Electronic and Atomic Collisions; 2011

We study the singly differential cross section (SDCS) for the Temkin- Poet model [1] of hydrogen ionization by electronic impact. The ionization amplitude is obtained from the scattering wave function. To solve the corresponding Schr ̈dinger o equation we propose a Configuration Interaction scheme to expand Ψ+ using outgoing wave Sturmian functions [2, 3]. We sc use different methods to extract the the ionization amplitude: the flux [4] and surface integral [5] formulas, used within the ECS method. We compare the efficiency of each one for the ionization amplitude, and show that the extraction of information from the wave function is straightforward with any of them.