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          Institute: MPI für Kernphysik     Collection: Spectroscopy and Dynamics of Trapped and Stored Ions     Display Documents

ID: 50964.0, MPI für Kernphysik / Spectroscopy and Dynamics of Trapped and Stored Ions
Observation of Trielectronic Recombination in Be-like Cl Ions
Authors:Schnell, M.; Gwinner, G.; Badnell, N.R.; Bannister, M.E.; Böhm, S.; Colgan, J.; Kieslich, S.; Loch, S.D.; Mitnik, D.; Müller, A.; Pindzola, M.; Schippers, S.; Schwalm, D.; Shi, W.; Wolf, A.; Zhou, S.G.
Date of Publication (YYYY-MM-DD):2003
Title of Journal:Physical Review Letters
Journal Abbrev.:Phys. Rev. Lett.
Start Page:1
End Page:4
Sequence Number of Article:043001
Copyright:copyright©2003 The American Physical Society
Review Status:Peer-review
Audience:Experts Only
Abstract / Description:Recombination involving the core excitation of two electrons, which may be termed trielectronic recombination, has been experimentally identified for the first time. Using Cl13+ ions circulating in the TSR heavy-ion storage ring, we have observed surprisingly strong low-energy trielectronic recombination resonances, comparable to the dielectronic process. At higher electron-ion collision energies, trielectronic recombination is suppressed due to the autoionization of the triply excited intermediate state into excited final states. The formation of the intermediate state depends sensitively on configuration mixing, making trielectronic recombination a challenge to atomic-structure calculations.
External Publication Status:published
Document Type:Article
Affiliations:MPI für Kernphysik/Group D. Schwalm/Atomic and Molecular Physics with Stored Ions (A. Wolf)
External Affiliations:Department of Physics, University of Strathclyde, Glasgow, G4 0NG, United Kingdom
3Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
4Institut für Kernphysik, Justus-Liebig-Universität, 35392 Giessen, Germany
5Department of Physics, Auburn University, Auburn, Alabama 36849, USA
6Departamento de Física, Universidad de Buenos Aires, FCEyN Buenos Aires (C1428EGA), Argentina
7School of Physics, Peking University, Beijing 100871, China
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