Hartree-Fock results for electron impact ionization of H atoms
Abbreviated Journal Title
J. Phys. B-At. Mol. Opt. Phys.
DIFFERENTIAL CROSS-SECTIONS; HYDROGEN-ATOMS; ANGULAR-DISTRIBUTIONS; THRESHOLD; SCATTERING; HELIUM; Optics; Physics, Atomic, Molecular & Chemical
The multiconfiguration Hartree - Fock method for bound and continuum wavefunctions has been extended to investigate electron impact ionization of atoms. As a test case, the method is applied to calculate triple differential cross sections for electron impact ionization of H atom at an excess energy of 4 eV for the coplanar theta(12) = pi geometry. The results are obtained for both equal and unequal energies of the two outgoing electrons in the Hartree - Fock ( HF) and screening potential ( SP) approximations in order to determine the importance of electron correlation between the two outgoing electrons in the present configuration. At equal energies, both the HF and SP results are found to be very close to each other and are in very good agreement with the relative experimental measurements and other accurate theoretical calculations. At unequal energies, both calculated results also compare well with the relative experimental data over all ranges of theta(1) considered by experiment.
Journal of Physics B-Atomic Molecular and Optical Physics
"Hartree-Fock results for electron impact ionization of H atoms" (2008). Faculty Bibliography 2000s. 916.