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Abbreviated Journal Title

Phys. Rev. A

Keywords

Optics; Physics; Atomic; Molecular & Chemical

Abstract

The K-shell photoionization cross section of argon near the threshold has been obtained with the multiconfiguration Hartree-Fock method for continuum wave functions. The electron correlation and the core-relaxation effects that are very important in this process have been taken into account in the calculation very accurately in the ab initio manner through the configuration-interaction procedure. The present results are compared with the experimental measurements and are found to be in excellent agreement. The two-electron resonances that have been observed immediately above the ionization threshold have been identified and assignments have been made to these based on accurate calculations.

Journal Title

Physical Review A

Volume

42

Issue/Number

11

Publication Date

1-1-1990

Document Type

Article

Language

English

First Page

6507

Last Page

6511

WOS Identifier

WOS:A1990EM50000024

ISSN

1050-2947

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