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          Institute: MPI für Dynamik und Selbstorganisation     Collection: Hydrodynamik und Strukturbildung     Display Documents



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ID: 350904.0, MPI für Dynamik und Selbstorganisation / Hydrodynamik und Strukturbildung
Electron-impact dissociation and transition properties of a stored LiH2 beam
Authors:Lammich, Lutz; Altevogt, S.; Buhr, H.; Kreckel, H.; Krohn, S.; Lange, M.; Strasser, D.; Repnow, R.; Grieser, M.; Schinke, Reinhard; Qu, Zheng-Wang; Zhu, H.; Schwalm, Dirk; Zajfman, D.; Woif, A.
Language:English
Date of Publication (YYYY-MM-DD):2007-01
Title of Journal:The European Physical Journal D
Volume:41
Issue / Number:1
Start Page:103
End Page:111
Review Status:Peer-review
Audience:Experts Only
Abstract / Description:The fragmentation of LiH2 - anions after electron impact was investigated at the heavy-ion storage ring TSR. The main reaction channel was found to be electron detachment followed by a breakup into LiH + H. In the first ms after production of the molecular ions in a cesium sputtering ion source, additional contributions were observed in the Li + H2 and Li- + H2 channels, hinting at an initial population of a short-lived state of the anion. To gain a better understanding of the mechanisms underlying the observed behavior of the system, ab initio calculations of relevant potential energy surfaces were performed at selected geometries. The experimental findings are discussed in the light of these calculations.
External Publication Status:published
Document Type:Article
Communicated by:Folkert Müller-Hoissen
Affiliations:MPI für Dynamik und Selbstorganisation/Hydrodynamik und Strukturbildung
External Affiliations:Max-Planck Institut für Kernphysik, Heidelberg, Germany;
Dept. of Particle Physics, Weizmann Institute of Science, Rehovot, Israel
Identifiers:DOI:10.1140/epjd/e2006-00200-6
ISSN:1434-6060
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