Abstract

We have measured fully differential cross sections (FDCS) for ionization in 75-keVp+H2 collisions for ejected electron speeds close to the projectile speed. The data were analyzed in dependence on both the electron emission angle and the projectile scattering angle. Pronounced postcollisional effects between the projectile and the ejected electrons were observed. Significant differences between experiment and theory and between two conceptually very similar theoretical models were found. This shows that in the region of electron-projectile velocity-matching the FDCS is very sensitive to the details of the underlying few-body dynamics.

Department(s)

Physics

Keywords and Phrases

Electron emission; Ionization, Body dynamics; Ejected electrons; Fully differential cross sections; Post-collision; Projectile speed; Projectile velocity; Proton impact; Scattering angles, Electrons

International Standard Serial Number (ISSN)

2469-9926; 2469-9934

Document Type

Article - Journal

Document Version

Final Version

File Type

text

Language(s)

English

Rights

© 2019 American Physical Society (APS), All rights reserved.

Publication Date

01 Jun 2019

Included in

Physics Commons

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