One-photon double ionization of helium: a heuristic formula for the cross section
Atomic Physics
2015-06-03 v1 Quantum Physics
Abstract
Without a formal derivation, we propose a formula for the total and single-differential cross in the problem of one-photon double ionization of an atom. The formula is benchmarked against accurate experimental data for the total cross section of helium. Furthermore, a direct comparison with ab initio calculations for the double ionization of Li+ suggests that the framework is valid for the entire helium isoelectronic sequence. To this end, we introduce a formula for the double ionization of lithium, as well as for the triple ionization of lithium and beryllium.
Keywords
Cite
@article{arxiv.1112.5932,
title = {One-photon double ionization of helium: a heuristic formula for the cross section},
author = {Morten Førre},
journal= {arXiv preprint arXiv:1112.5932},
year = {2015}
}