Two-photon ionization of the neutral argon atom
- 1 May 1975
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review A
- Vol. 11 (5), 1543-1551
- https://doi.org/10.1103/physreva.11.1543
Abstract
The two-photon ionization cross section for the neutral argon atom is calculated. A double perturbation expansion in the Coulomb correlations and the atom-radiation-field interaction is made. Contributions from intermediate states are obtained by direct summation over Hartree-Fock bound and continuum single-particle states. The effects of electron correlations and photon-radiative corrections are investigated. Comparison is made with previous theoretical methods.Keywords
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