The effects of discrete and continuum states on the 2p(4) P-3 -> 2p(3)3s S-3(o) transition of atomic oxygen by electron impact

摘要

Momentum-space coupled-channels-optical (CCO) method has been used to study the excitation process of the 2p(4) P-3 -> 2p(3)3s S-3 degrees transition of oxygen by electron impact at energies of 15, 17.5, 20, 22.5, 25, 27.5, 30, 50 and 100 eV. Important continuum states of a target are included via a complex equivalent-local optical potential. Direct ionization cross sections have been calculated to check the validity of the method. Differential cross section and integral cross section have been calculated and compared with experimental measurements and other theoretical results.