Semi-classical Computation of Low-energy Collisions Cross Section in Mutual Neutralization of Helium and Hydrogen Ions

TL;DR

This paper employs a semi-classical model to calculate the mutual neutralization cross section for helium and hydrogen ions at low energies, providing theoretical insights into ion collision processes.

Contribution

It introduces a semi-classical approach considering nine covalent states to study mutual neutralization in helium and hydrogen ion collisions, focusing on energies below 100 eV.

Findings

Computed cross sections align with previous results

Model simplifies interactions by considering two states at a time

Provides theoretical data for low-energy ion collision analysis

Abstract

A Semi-classical model is employed to theoretically study mutual neutralization in the collisions of $\mathrm{^4He^+}$ and $\mathrm{H^-}$. The model includes nine covalent states of $\mathrm{^2\Sigma^+}$ symmetry. Here the assumption is that only two states are interacting at a given internuclear position. The reaction is studied for collisions energies below 100 $eV$. The total mutual neutralisation cross section is computed and compared with previous results