Charge transfer and ionization cross-sections in collisions of singly charged lithium ions with helium and nitrogen atoms

Abstract

We present a non-perturbative classical treatment of the charge transfer and ionisation processes in collisions between singly charged lithium ions with helium and nitrogen atomic targets. The single capture and single ionisation total cross sections are calculated using a three-body classical trajectory Monte Carlo (CTMC) method in which the interaction between the collision partners is described by the Garvey-type model potential. The cross sections are evaluated for collision energies between 20 keV and 100 MeV. In particular, we found excellent agreement between our results and the available experimental data for the case of the single capture from He(1s) by Li$^{+}$ ions. In addition, our CTMC results are in a reasonable agreement with the experimental results for collision energies higher than 200 keV for single capture from N(2p) atoms by Li$^{+}$. Furthermore, we present single ionisation cross sections for both collision systems.

Interaction of Protons with Noble-Gas Atoms: Total and Differential Cross Sections

“…The CTMC method is a reasonable approximation for medium to high impact energies, but it lacks accuracy at low energies, i.e., slow projectiles. The contribution of nucleus-nucleus interaction to the collision cross sections is negligible [19], as we verified in our previous works [33,34], performing calculations with and without the nuclear potential.…”

Interaction of electrons and positrons with two-dimensional artificially generated proton lattice and with carbon lattice

“…The parameters h and x are given by the formulae : 1 [27]. For more details of the cakculation procedure please see Al-Ajaleen et al [28] and the refernces within. Figure 4 shows the double differential intensity distributions of electrons with kinetic energy of 500 eV after they were scattered from a lattice with = d au 5 .…”