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



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ID: 441473.0, MPI für Kernphysik / Physics of Quantum Dynamics in Atomic Fragmentation
Controlling Two-Electron Threshold Dynamics in Double Photoionization of Lithium by Initial-State Preparation
Authors:Zhu, G.; Schuricke, M.; Steinmann, J.; Albrecht, J.; Ben-Itzhak, I.; Zouros, T. J. M.; Colgan, J.; Pindzola, M. S.; Dorn, A.
Language:English
Date of Publication (YYYY-MM-DD):2009-09-04
Title of Journal:Physical Review Letters
Journal Abbrev.:Phys. Rev. Lett.
Volume:103
Issue / Number:10
Start Page:1
End Page:4
Sequence Number of Article:103008
Copyright:©2009 The American Physical Society
Review Status:Peer-review
Audience:Experts Only
Abstract / Description:Double photoionization (DPI) and ionization-excitation (IE) of Li(2s) and Li(2p), state-prepared and aligned in a magneto-optical trap, were explored in a reaction microscope at the free-electron laser in Hamburg (FLASH). From 6 to 12 eV above threshold ([h-bar]omega=85, 91 eV), total as well as differential DPI cross sections were observed to critically depend on the initial state and, in particular, on the alignment of the 2p orbital with respect to the VUV-light polarization, whereas no effect is seen for IE. The alignment sensitivity is traced back to dynamical electron correlation at threshold.
Classification / Thesaurus:32.80.Fb
External Publication Status:published
Document Type:Article
Affiliations:MPI für Kernphysik/Group of J. Ullrich/Strong-Fields Physics (R. Moshammer)
External Affiliations:Max-Planck Advanced Study Group at the Center for Free Electron Laser Science, Hamburg, Germany
J. R. Macdonald Laboratory, Department of Physics, Kansas State University, Manhattan, Kansas 66506, USA
Department of Physics, University of Crete, P.O. Box 2208, 71003, Heraklion, Crete, Greece
Theoretical Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
Department of Physics, Auburn University, Auburn, Alabama 36849, USA
Identifiers:DOI:10.1103/PhysRevLett.103.103008
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