Research Papers in Physics and Astronomy


Date of this Version

May 1976


Published by American Physical Society. Phys. Rev. A 13, 1850 (1976). Copyright © 1976 American Physical Society. Permission to use.


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.

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