CROSS SECTIONS FOR ELECTRON SCATTERING BY POLYATOMIC MOLECULES
USING THE SCHWINGER MULTICHANNEL METHOD WITH PSEUDOPOTENTIALS (SMCPP)

Marcio T. do N. Varella*, David L. Azevedo*, Roberto B. Diniz*,
Alexandra P. P. Natalense*, M\'arcio H. F. Bettega**,
Luiz G. Ferreira* and Marco A. P. Lima*

*Instituto de Fisica Gleb Wataghin, Universidade Estadual de Campinas, UNICAMP,
13083-970, Campinas, Sao Paulo, Brazil 
**Departamento de Fisica, Universidade Federal do Parana, UFPR, 
Caixa Postal 19081, 81531-990 Curitiba, Parana, Brazil

We present a multichannel calculation for eletron-H2O collisions including 11
open electronic states and also static-exchange calculations for electron scattering
by heavy targets, such as CF3, SO2 and TiCl4. The study was carried out using
the Schwinger Multichannel Method with Pseudopotentials (SMCPP)~[1]. In this approach,
the core electrons of the target are replaced by the norm--conserving BHS pseudopotentials
thus reducing the computational effort in a large extent.