Target Dependence of Post-Collision Effects in Ionization by Proton Impact

Abstract

We have measured and calculated double differential cross sections for ionization of Ne and Ar by 75 keV proton impact for a broad range of fixed projectile energy losses as a function of scattering angle. Along with data obtained previously for lighter targets this made possible a systematic analysis of post-collision effects between the scattered projectile and the continuum electron in the exit channel as a function of the target ionization potential. The data are consistent with an increasing strength of such effects with increasing ionization potential. However, second-order effects involving the projectile--residual target ion interaction also play an important role.

Department(s)

Physics

Research Center/Lab(s)

Center for High Performance Computing Research

Sponsor(s)

National Science Foundation (U.S.)

Comments

This work was supported by the National Science Foundation under grant nos. PHY-1703109 and PHY-1505819.

Keywords and Phrases

atomic collisions; few-body problem; ionization

International Standard Serial Number (ISSN)

0953-4075; 1361-6455

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2019 Institute of Physics - IOP Publishing, All rights reserved.

Publication Date

01 May 2019

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