Two-center basis generator method calculations for Li$^{3+}$, C$^{3+}$ and O$^{3+}$ ion impact on ground state hydrogen

TL;DR

This study uses the two-center basis generator method to calculate excitation, capture, and ionization cross sections for Li$^{3+}$, C$^{3+}$, and O$^{3+}$ ions colliding with hydrogen, revealing charge-dependent behaviors and comparing with existing data.

Contribution

It applies the two-center basis generator method to multiple ion-hydrogen collision systems, providing new cross section data and insights into charge dependence and capture discrepancies.

Findings

Excitation and ionization cross sections are similar across the three ions.

Capture cross sections vary significantly, especially at low energies.

Results generally agree with previous data, with some discrepancies noted.

Abstract

The two-center basis generator method is used to obtain cross sections for excitation, capture, and ionization in Li$^{3+}$, C$^{3+}$, and O$^{3+}$ collisions with ground-state hydrogen at projectile energies from 1 to 100 keV/u. The interaction of the C$^{3+}$ and O$^{3+}$ projectiles with the active electron is represented by a model potential. Comparisons of cross sections with previously reported data show overall good agreement while discrepancies in capture for C$^{3+}$ collisions at low energies are noted. The present results show that excitation and ionization are similar across the three collision systems, which indicates that these cross sections are mostly dependent on the net charge of the projectile only. The situation is different for the capture channel.