Influence of the Post-Collision Interaction on Interference Effects in Ionization of H₂ by Proton Impact

Abstract

We have performed a kinematically complete experiment on ionization of H2 by 75 keV proton impact leading to electrons with a speed equal to the projectile speed. By comparing cross sections measured with a coherent and an incoherent projectile beam we were able to perform a detailed analysis of interference effects. We found that the interference structure is significantly more damped than for a smaller electron energy studied previously. This damping is further increased if kinematic conditions are selected which favor a strong role of the post-collisional interaction between the scattered projectile and the electron ejected to the continuum by a preceding primary interaction with the projectile.

Department(s)

Physics

Keywords and Phrases

Coherent light; Electron energy levels; Ionization of gases; Projectiles; Wave interference; Complete experiment; Electron energies; Interference effects; Interference structures; Kinematic condition; Molecular targets; Post collision interaction; Post collisional interactions; Ionization

International Standard Serial Number (ISSN)

0953-4075

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2015 Institute of Physics - IOP Publishing, All rights reserved.

Publication Date

01 Jul 2015

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