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Positronium-dipole induced resonances in e(+)-H and e(+)-alkali systems
Stockholm University, Faculty of Science, Department of Physics.
Stockholm University, Faculty of Science, Department of Physics.
Number of Authors: 2
2017 (English)In: Journal of Physics B: Atomic, Molecular and Optical Physics, ISSN 0953-4075, E-ISSN 1361-6455, Vol. 50, no 4, article id 044001Article in journal (Refereed) Published
Abstract [en]

We derive general universal scaling relations governing resonances induced by the dipole moment of excited positronium interacting with atomic ions. A single non-universal parameter, which contains all the system-dependent information, is defined. Our results are compared to numerical calculations, using complex scaling, for S, P, and D-wave resonances below the positronium n. =. 2 threshold in the e(+)-(H, Li, Na, K) systems. The energy and width ratios of the successive resonances are found to agree well with the analytically derived scaling law.

Place, publisher, year, edition, pages
2017. Vol. 50, no 4, article id 044001
Keyword [en]
positronium, resonances, dipole series, three-body systems
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:su:diva-141232DOI: 10.1088/1361-6455/aa52e1ISI: 000394515600001OAI: oai:DiVA.org:su-141232DiVA, id: diva2:1089286
Available from: 2017-04-19 Created: 2017-04-19 Last updated: 2017-04-19Bibliographically approved

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Jonsell, Svante
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