Research Papers in Physics and Astronomy


Date of this Version

September 1979


Published by American Physical Society. Phys. Rev. A 20, 1005 (1979). Copyright © 1979 American Physical Society. Permission to use.


The authors present a survey of the photoionization cross sections and photoelectron angular distributions for the outer p subshell of the chalcogen atoms O, S, Se, and Te and the halogen atoms F, Cl, Br, and I. Results are presented in the Hartree-Fock approximation as well as in the central-potential-model approximation. An extensive analysis and comparison of the results obtained is presented which finds that exchange-interaction effects are strongest for the n=3 row elements.

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