Dissociative Ionization of H2 by Fast Protons: Three-Body Break-Up and Molecular-Frame Electron Emission
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.
C. Dimopoulou and R. Moshammer and D. Fischer and P. D. Fainstein and C. Hohr and A. Dorn and J. R. Crespo Lopez-Urrutia and C. D. Schroter and H. Kollmus and R. Mann and S. Hagmann and J. H. Ullrich, "Dissociative Ionization of H2 by Fast Protons: Three-Body Break-Up and Molecular-Frame Electron Emission," Journal of Physics B: Atomic, Molecular and Optical Physics, vol. 38, no. 5, pp. 593-601, Institute of Physics - IOP Publishing, Mar 2005.
The definitive version is available at http://dx.doi.org/10.1088/0953-4075/38/5/010
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)
Article - Journal
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