Target electron removal in C⁵⁺ + H collision

Abstract

We present target ionization and charge exchange cross sections in a collision between C5+ ion and H atom. We treat the collision dynamics classically using a four-body classical trajectory Monte Carlo (CTMC) and a four-body quasi-classical Monte Carlo (QCTMC) model when the Heisenberg correction term is added to the standard CTMC model via model potential. The calculations were performed in the projectile energy range between 1.0 keV/amu and 10 MeV/amu. We found that the cross sections obtained by the QCTMC model are higher than that of the cross sections calculated by the standard CTMC model and these cross sections are closer to the previous experimental and theoretical data. Moreover, for the case of ionization, we show that the interaction between the projectile and the target electrons plays a dominant role in the enhancement of the cross sections at lower energies.

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

“…In ion-atom collisions involving a single electron, many classical, semi-classical and quantum mechanical theoretical approaches have been developed to calculate the cross sections of possible electron processes (see [9][10][11][12] and references therein). Regarding the collisions involving two or more active electrons, the non-perturbative semi-classical or quantum treatments are difficult to apply and few works are available in this context [13,14].…”

Atomic collisional data for neutral beam modeling in fusion plasmas

“…µ λe is the reduced mass of the particles λ and e. The α H and ξ H are the Heisenberg adjustable hardness and dimensionless parameters, respectively. The QCTMC model can, until recently, only be used for a ground state initial configuration [29,[84][85][86][87][88][89][90][91][92]. The α and ξ parameters of the correction term are obtained from the definition of the lowest energy according to: ∂H ∂p = 0, ∂H ∂r = 0.…”

Ionization of Hydrogen Atom by Proton Impact—How Accurate Is the Ionization Cross Section?

“…However, in many cases, quantum-mechanical calculations are very complicated and unfeasible. Therefore, as an alternative calculation scheme and due to the simplicity of calculations, classical models have been developed and used to obtain the corresponding cross sections [23][24][25][26][27][28][29][30][31][32][33][34][35][36][37].…”

“…The effective potential was introduced to mimic the Heisenberg uncertainty principle and the Pauli Exclusion Principle for multi-electronic systems. The effectiveness of the QCTMC is elaborated in several studies [27][28][29][30][32][33][34][35][36]. Despite the fact that our calculation system is the simplest system, we use the Heisenberg correction term in the description of the hydrogen atom.…”