Issue 25, 2022

Ionization cross sections in collisions between two hydrogen atoms by a quasi-classical trajectory Monte Carlo model

Abstract

The hydrogen-hydrogen collision system is studied employing a four-body quasi-classical trajectory Monte Carlo model of Kirschbaum and Wilets (QCTMC-KW, C. L. Kirschbaun and L. Wilet, Phys. Rev. A: At., Mol., Opt. Phys., 1980, 21, 834). We present the total ionization cross-section of the target and projectile as a result of pure ionization and electron transfer processes. Calculations were performed in the intermediate energy regime, which is crucial to fusion research. Our results were compared with previous theoretical and experimental results. We found that the quasi-classical approach accurately describes the cross sections of a variety of final channels. We found that the cross-section results by the QCTMC-KW method are higher compared with the standard four-body CTMC results and in good agreement with the experimental data, particularly at low energies.

Graphical abstract: Ionization cross sections in collisions between two hydrogen atoms by a quasi-classical trajectory Monte Carlo model

Article information

Article type
Paper
Submitted
27 Jan 2022
Accepted
04 Jun 2022
First published
14 Jun 2022

Phys. Chem. Chem. Phys., 2022,24, 15280-15291

Ionization cross sections in collisions between two hydrogen atoms by a quasi-classical trajectory Monte Carlo model

S. J. Al Atawneh and K. Tőkési, Phys. Chem. Chem. Phys., 2022, 24, 15280 DOI: 10.1039/D2CP00461E

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