Title

Dissociative Ionization of H2 by Fast Protons: Three-Body Break-Up and Molecular-Frame Electron Emission

Abstract

Highly differential cross sections have been obtained for dissociative single ionization of H2 by 6 MeV proton impact by measuring the momentum vectors of the electron and the H+ fragment in coincidence. The investigation of the momentum balance of the fragments along the projectile beam provided detailed insight into the four-particle dynamics, even though the H atom is not detected. Within the axial recoil approximation, molecular-frame angular distributions of emitted electrons have been determined for molecules oriented perpendicular to the projectile beam. They are compared with the predictions of a CDW-EIS calculation.

Department(s)

Physics

Keywords and Phrases

Electron Emission; Electron Spectroscopy; Elementary Particles; Error Analysis; Kinetic Energy; Mathematical Models; Molecular Orientation; Protons; Vectors; Dissociative Ionization; Momentum Vectors; Nuclear Motion; Projectile Beam

International Standard Serial Number (ISSN)

0953-4075

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2005 Institute of Physics - IOP Publishing, All rights reserved.

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