Large electron correlation effects in the nondipole asymmetry parameters near photoionization thresholds
Abbreviated Journal Title
Phys. Rev. A
ANGULAR-DISTRIBUTION PARAMETERS; SUBSHELL CROSS-SECTIONS; MULTIPOLE; CORRECTIONS; LOW ENERGIES; PHOTOELECTRONS; DISTRIBUTIONS; APPROXIMATION; PHOTOEMISSION; RETARDATION; NEON; Optics; Physics, Atomic, Molecular & Chemical
The nondipole corrections to the dipole approximation for the angular distribution of photoelectrons are calculated for Ar 3s subshell in the Hartree-Fock (HF) approximation for photoelectron energies ranging from threshold to 2 keV. The effects of electron correlation which are very important have been taken into account using the multiconfiguration HF approximation. It is found that near the threshold from 0 to 50 eV photoelectron energy, the nondipole parameters show oscillatory structure due to large electron correlation effects. The results are compared with existing theoretical and experimental data.
Physical Review A
"Large electron correlation effects in the nondipole asymmetry parameters near photoionization thresholds" (2004). Faculty Bibliography 2000s. 4762.