Triply Differential (E, 2e) Cross Sections for Ionization of the Nitrogen Molecule At Large Energy Transfer

Abstract

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.

Department(s)

Physics

Sponsor(s)

France-Algeria TASSILI cooperation program
National Science Foundation (U.S.)

Keywords and Phrases

Atomic Physics; Molecular Excitation and Ionization; Molecular Physics; Stereochemistry

International Standard Serial Number (ISSN)

0953-4075

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2007 Institute of Physics - IOP Publishing, All rights reserved.

Publication Date

01 Sep 2007

Link to Full Text

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