Title

Large electron correlation effects in the nondipole asymmetry parameters near photoionization thresholds

Authors

Authors

H. P. Saha

Comments

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Abbreviated Journal Title

Phys. Rev. A

Keywords

ANGULAR-DISTRIBUTION PARAMETERS; SUBSHELL CROSS-SECTIONS; MULTIPOLE; CORRECTIONS; LOW ENERGIES; PHOTOELECTRONS; DISTRIBUTIONS; APPROXIMATION; PHOTOEMISSION; RETARDATION; NEON; Optics; Physics, Atomic, Molecular & Chemical

Abstract

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.

Journal Title

Physical Review A

Volume

69

Issue/Number

2

Publication Date

1-1-2004

Document Type

Article

Language

English

First Page

5

WOS Identifier

WOS:000189386300071

ISSN

1050-2947

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