Photo double ionization of helium 100 eV and 450 eV above threshold: I. Linearly polarized light

A. Knapp; A. Kheifets; I. Bray; T. Weber; A.L. Landers; S. Schössler; T. Jahnke; J. Nickles; S. Kammer; O. Jagutzki; L.Ph.H Schmidt; M. Schöffler; T. Osipov; M.H. Prior; H. Schmidt-Böcking; C.L. Cocke; R. Dörner

doi:10.1088/0953-4075/38/6/001

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Photo double ionization of helium 100 eV and 450 eV above threshold: I. Linearly polarized light

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Photo double ionization of helium 100 eV and 450 eV above threshold: I. Linearly polarized light

A. Knapp, A. Kheifets, I. Bray, T. Weber, A.L. Landers, S. Schössler, T. Jahnke, J. Nickles, S. Kammer, O. Jagutzki, …

Journal of Physics B: Atomic, Molecular and Optical Physics, Vol.38(6), pp.615-633

2005

DOI: https://doi.org/10.1088/0953-4075/38/6/001

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Abstract

We present a joint experimental and theoretical study for the fully differential cross section of the photo double ionization (PDI) of helium with linearly polarized light at the excess energies E exc = 100 eV and 450 eV above the threshold. The fully differential cross section is obtained by measuring the three-dimensional momentum vectors of one electron and the He 2+ ion in coincidence using the COLTRIMS method. We give an overview of the momentum distribution of the three-body continuum 100 eV above the threshold. We show angular distributions for both electrons for various energy sharings at E exc = 100 eV and 450 eV. The experimental results are well reproduced by a set of convergent close-coupling (CCC) calculations.

Details

Title: Photo double ionization of helium 100 eV and 450 eV above threshold: I. Linearly polarized light
Authors/Creators: A. Knapp (Author/Creator) - Goethe University Frankfurt
A. Kheifets (Author/Creator) - Australian National University
I. Bray (Author/Creator) - Murdoch University
T. Weber (Author/Creator) - Kansas State University
A.L. Landers (Author/Creator) - Auburn University
S. Schössler (Author/Creator) - Goethe University Frankfurt
T. Jahnke (Author/Creator) - Goethe University Frankfurt
J. Nickles (Author/Creator) - Goethe University Frankfurt
S. Kammer (Author/Creator) - Goethe University Frankfurt
O. Jagutzki (Author/Creator) - Goethe University Frankfurt
L.Ph.H Schmidt (Author/Creator) - Goethe University Frankfurt
M. Schöffler (Author/Creator) - Goethe University Frankfurt
T. Osipov (Author/Creator) - Kansas State University
M.H. Prior (Author/Creator) - Lawrence Berkeley National Laboratory
H. Schmidt-Böcking (Author/Creator) - Goethe University Frankfurt
C.L. Cocke (Author/Creator) - Kansas State University
R. Dörner (Author/Creator) - Goethe University Frankfurt
Publication Details: Journal of Physics B: Atomic, Molecular and Optical Physics, Vol.38(6), pp.615-633
Publisher: Institute of Physics
Identifiers: 991005546347707891
Copyright: © 2005 IOP Publishing Ltd.
Murdoch Affiliation: Centre for Atomic, Molecular and Surface Physics
Language: English
Resource Type: Journal article

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Collaboration types: Domestic collaboration; International collaboration
Citation topics: 2 Chemistry; 2.15 Physical Chemistry; 2.15.664 Dissociative Electron Attachment
Web Of Science research areas: Optics; Physics, Atomic, Molecular & Chemical
ESI research areas: Physics