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arXiv · 1205.5590

Photoionization of the Be isoelectronic sequence: total cross sections

W. -C. Chu·H. -L. Zhou·A. Hibbert·S. T. Manson
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Abstract

The photoionization of the four-electron beryllium-like isoelectronic series from the neutral to Fe^{+22} has been studied for ground ^1S and metastable ^3P initial states. The wave functions of the final-state (target) ions were built using the CIV3 code. Both nonrelativistic LS-coupling R-matrix and relativistic Breit-Pauli (BP) R-matrix methods were used to calculate the cross sections in the photon-energy range between the first ionization threshold and the 1s^2 4f_{7/2} threshold for each ion. Our total cross sections compare well with experiment which is available for Be, B^+, C^{+2}, N^{+3}, and O^{+4}. The agreement between the present work and previous calculations is discussed in detail. The importance of relativistic effects is seen by the comparison between the LS and the BP results.

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W. -C. Chu, H. -L. Zhou, A. Hibbert, S. T. Manson. 2012-05-24. Photoionization of the Be isoelectronic sequence: total cross sections. https://doi.org/10.1088/0953-4075/42/20/205003

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