Triply Differential (E, 2e) Cross Sections for Ionization of the Nitrogen Molecule At Large Energy Transfer
Measurements of the (e,2e) triply differential cross sections (TDCS) are presented for the ionization of the nitrogen molecule in coplanar asymmetric geometry at an incident energy of about 600 eV and a large energy transfer to the target. The experimental results are compared with state-of-the-art available theoretical models for treating differential electron impact ionization of molecules. The experimental TDCS are characterized by a shift towards larger angles of the angular distribution with respect to the momentum transfer direction, and by a large intensity in the recoil region, especially for ionization of the 'inner' 2σg molecular orbital. Such shifts and intensity enhancement are not predicted by the model calculations which rather yield a TDCS symmetrically distributed around the momentum transfer direction.
A. Naja et al., "Triply Differential (E, 2e) Cross Sections for Ionization of the Nitrogen Molecule At Large Energy Transfer," Journal of Physics B: Atomic, Molecular and Optical Physics, Institute of Physics - IOP Publishing, Sep 2007.
The definitive version is available at http://dx.doi.org/10.1088/0953-4075/40/18/015
France-Algeria TASSILI cooperation program
National Science Foundation (U.S.)
Keywords and Phrases
Atomic Physics; Molecular Excitation and Ionization; Molecular Physics; Stereochemistry
Article - Journal
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