Ionization Cross Section in Li2+ + H Collision

Abstract

Abstract: We present total ionization cross section (TICS) and single differential ionization cross sections (SDCS) of neutral hydrogen atoms by partially stripped lithium ions. We employed a 4-body classical trajectory Monte Carlo (CTMC) model and a 4-body quasi-classical trajectory Monte Carlo (QCTMC) model. We present the TICS in the projectile impact energy range from 40 keV to 8 MeV, relevant to astronomical, plasma, and fusion research interests. We found that total ionization cross sections obtained using the CTMC model were lower than those calculated with QCTMC, and more closely aligned to previous experimental data. Furthermore, the QCTMC calculations show higher values than the experimental results but are closer to previous theoretical data. We also present the energy and angular differential ionization cross section of ground state hydrogen atom by Li²⁺ using both 4-body CTMC and 4-body QCTMC methods.

Keywords: Ion-atom collision, Ionization, Classical trajectory Monte Carlo method, Single differential ionization cross section.