Target-ionization with exchange in Ps-atom scattering

TL;DR

This paper presents theoretical calculations of target-ionization cross sections in positronium-atom scattering, including exchange effects, providing new data for Ps-H and Ps-He systems.

Contribution

It introduces the first theoretical calculations of total target-ionization cross sections in Ps-atom scattering including exchange effects.

Findings

Calculated total target-ionization cross sections for Ps-H and Ps-He.

Included exchange effects in Coulomb-Born approximation.

Provides the first theoretical data for these processes.

Abstract

A proposal is made by the University College of London Group [1] for measuring the target-ionization cross sections in Ps and atom scattering. We calculate the corresponding theoretical data for Ps-H and Ps-He systems including the effect of exchange on Coulomb-Born approximation for the projectile-elastic and projectile-inelastic processes and report the total target-ionization cross sections for the first time.