dorsal/arxiv
View SchemaSeparation and identification of dominant mechanisms in double photoionization
| Authors | Tobias Schneider, Peter Leszek Chocian, Jan-Michael Rost |
|---|---|
| Categories | |
| ArXiv ID | physics/0205017 |
| URL | https://arxiv.org/abs/physics/0205017 |
| DOI | 10.1103/PhysRevLett.89.073002 |
| Journal | Phys. Rev. Lett. 89, 073002 (2002) |
Abstract
Double photoionization by a single photon is often discussed in terms of two contributing mechanisms, {\it knock-out} (two-step-one) and {\it shake-off} with the latter being a pure quantum effect. It is shown that a quasi-classical description of knock-out and a simple quantum calculation of shake-off provides a clear separation of the mechanisms and facilitates their calculation considerably. The relevance of each mechanism at different photon energies is quantified for helium. Photoionization ratios, integral and singly differential cross sections obtained by us are in excellent agreement with benchmark experimental data and recent theoretical results.
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"abstract": "Double photoionization by a single photon is often discussed in terms of two\ncontributing mechanisms, {\\it knock-out} (two-step-one) and {\\it shake-off}\nwith the latter being a pure quantum effect. It is shown that a quasi-classical\ndescription of knock-out and a simple quantum calculation of shake-off provides\na clear separation of the mechanisms and facilitates their calculation\nconsiderably. The relevance of each mechanism at different photon energies is\nquantified for helium. Photoionization ratios, integral and singly differential\ncross sections obtained by us are in excellent agreement with benchmark\nexperimental data and recent theoretical results.",
"arxiv_id": "physics/0205017",
"authors": [
"Tobias Schneider",
"Peter Leszek Chocian",
"Jan-Michael Rost"
],
"categories": [
"physics.atom-ph",
"physics.class-ph"
],
"doi": "10.1103/PhysRevLett.89.073002",
"journal_ref": "Phys. Rev. Lett. 89, 073002 (2002)",
"title": "Separation and identification of dominant mechanisms in double photoionization",
"url": "https://arxiv.org/abs/physics/0205017"
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