A Knapp et al 2005 J. Phys. B: At. Mol. Opt. Phys. 38 615 doi:10.1088/0953-4075/38/6/001
A Knapp1, A Kheifets2, I Bray3, Th Weber1,5,6, A L Landers4, S Schössler1, T Jahnke1, J Nickles1, S Kammer1, O Jagutzki1, L Ph H Schmidt1, M Schöffler1, T Osipov5,6, M H Prior6, H Schmidt-Böcking1, C L Cocke5 and R Dörner1
Show affiliationsWe 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 Eexc = 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 He2+ 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 Eexc = 100 eV and 450 eV. The experimental results are well reproduced by a set of convergent close-coupling (CCC) calculations.
Issue 6 (28 March 2005)
Received 30 November 2004, in final form 25 January 2005
Published 7 March 2005
A Knapp et al 2005 J. Phys. B: At. Mol. Opt. Phys. 38 615
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