Multi-charged ion-water molecule collisions in a classical-trajectory time-dependent mean-field theory

Abstract

A recently proposed classical-trajectory dynamical screening model for the description of multiple ionization and capture during ion-water molecule collisions is extended to incorporate dynamical screening on both the multi-center target potential and the projectile ion. Comparison with available experimental data for He${}^{2+}$ + H${}_2$O collisions at intermediate energies (10-150 keV/u) and Li${}^{3+}$ + H${}_2$O at higher energies (100-850 keV/u) demonstrates the importance of both screening mechanisms. The question of how to deal with the repartitioning of the capture flux into allowed capture channels is addressed. The model also provides insights for data on highly-charged projectile ions (C${}^{6+}$, O${}^{8+}$, Si${}^{13+}$) in the MeV/u range where the question of saturation effects in net ionization was raised in the literature.

References in corpus (3)

• Classical-trajectory Monte Carlo calculations of differential electron emission in fast heavy-ion collisions with water molecules
• Proton-impact-induced electron emission from biologically relevant molecules studied with a screened independent atom model
• Dissociative ionization of the H${}_2$O molecule induced by medium energy singly charged projectiles

Cited by in corpus (4)

• Non-perturbative scaling behavior for net ionization of biologically relevant molecules by multiply-charged heavy-ion impact
• Calculation of Energy Loss in Antiproton Collisions with Many-Electron Systems using Ehrenfest's Theorem
• Independent atom model description of multiple ionization of water, methane, and ammonia molecules by proton impact
• Partial-wave approach to the Stark resonance problem of the water molecule