Calculation of the photoionization with deexcitation cross sections of He and helium-like ions |
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| Authors: | M. Ya. Amusia R. Krivec E. Z. Liverts V. B. Mandelzweig |
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| Affiliation: | (1) Racah Institute of Physics, The Hebrew University, 91904 Jerusalem, Israel;(2) Ioffe Physical-Technical Institute, St. Petersburg, 194021, Russia;(3) Department of Theoretical Physics, J. Stefan Institute, P.O. Box 3000, 1001 Ljubljana, Slovenia |
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| Abstract: | We discuss the results of the calculation of the photoionization with deexcitation of excited He and helium-like ions Li+ and B3+ at high but nonrelativistic photon energies θ. Several lower 1 S and 3 S states are considered. We present and analyze the ratios R d + * of the cross sections of photoionization with deexcitation, σ (d) + *(θ), and of the photoionization with excitation, σ+*(θ). The dependence of R d + * on the excitation of the target object and the charge of its nucleus is presented. In addition to theoretical interest, the results obtained can be verified using long-lived excited states such as 23 S of He. The text was submitted by authors in English. |
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