Photoinization cross sections for atomic chlorine using an open-shell random-phase approximation

Authors

• Anthony F. Starace, University of Nebraska-LincolnFollow
• Lloyd Armstrong Jr., Johns Hopkins University, Baltimore, Maryland

Document Type

Article

Date of this Version

May 1976

Comments

Published by American Physical Society. Phys. Rev. A 13, 1850 (1976). http://pra.aps.org. Copyright © 1976 American Physical Society. Permission to use.

Abstract

The use of the random-phase approximation with exchange (RPAE) for calculating partial and total photoionization cross sections and photoelectron angular distributions for open-shell atoms is examined for atomic chlorine. Whereas the RPAE corrections in argon (Z=18) are large, we find those in chlorine (Z=17) to be much smaller due to geometric factors. Hartree-Fock calculations with and without core relaxation are also presented. Sizable deviations from the close-coupling results of Conneely are found.