Excitation of the 3p states in electron-sodium scattering at intermediate energies

A coupled-channel-optical method (CCOM), to investigate the excitation of the 3p states for e^--Na scattering at intermediate energies, is reported. Nine atomic states( Na(3s), Na(3p), Na(4s), Na(3d), Na(4p), Na(5s), Na(4d), Na(5p), Na(5d) ) together with three optical potentials are used in this work. The inelastic differential cross sections (DCS) as well as the reduced Stokes parameters are compared with latest theoretical data and experimental measurements.