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          Institute: MPI für Kernphysik     Collection: Physics of Quantum Dynamics in Atomic Fragmentation     Display Documents



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ID: 521792.0, MPI für Kernphysik / Physics of Quantum Dynamics in Atomic Fragmentation
Symmetric eikonal model for projectile-electron excitation and loss in relativistic ion-atom collisions
Authors:Voitkiv, A. B.; Najjari, B.; Shevelko, V. P.
Language:English
Date of Publication (YYYY-MM-DD):2010-08-13
Title of Journal:Physical Review A
Journal Abbrev.:Phys. Rev. A
Volume:82
Issue / Number:2
Sequence Number of Article:022707
Copyright:© 2010 The American Physical Society
Review Status:Peer-review
Audience:Experts Only
Abstract / Description:At impact energies ≳1 GeV/u the projectile-electron excitation and loss occurring in collisions between highly charged ions and neutral atoms is already strongly influenced by the presence of atomic electrons. To treat these processes in collisions with heavy atoms we generalize the symmetric eikonal model, used earlier for considerations of electron transitions in ion-atom collisions within the scope of a three-body Coulomb problem. We show that at asymptotically high collision energies this model leads to an exact transition amplitude and is very well suited to describe the projectile-electron excitation and loss at energies above a few GeV/u. In particular, by considering a number of examples we demonstrate advantages of this model over the first Born approximation at impact energies of ~1-30 GeV/u, which are of special interest for atomic physics experiments at the future GSI facilities.
Classification / Thesaurus:34.10.+x, 34.50.Fa
External Publication Status:published
Document Type:Article
Affiliations:MPI für Kernphysik/Group of J. Ullrich/Strong-Fields Physics (R. Moshammer)
External Affiliations:Russian Acad Sci, PN Lebedev Phys Inst, Moscow 117924, Russia.
Identifiers:ISI:000280862400003 [ID No:1]
ISSN:1050-2947 [ID No:2]
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