Electron loss of fast projectiles in the collisions with molecules

TL;DR

This paper investigates electron loss in collisions between fast highly charged ions and molecules, highlighting how molecular orientation and collision multiplicity influence electron loss cross sections at various energies.

Contribution

It introduces a nonperturbative approach to calculate electron loss cross sections considering molecular orientation and collision multiplicity effects.

Findings

Collision multiplicity significantly affects electron loss for aligned molecules.

Orientation of molecules impacts the electron loss cross sections.

Effects are negligible for chaotic molecular orientations.

Abstract

The single and multiple electron loss of fast highly charged projectiles in the collisions with neutral molecules are studied within the framework of a nonperturbative approach. The cross sections for single, double, and triple electron losses are calculated for the collision system $Fe^{q+}\to N_2$ ($q$=24, 25, 26) at the collision energies 10, 100, and 1000 MeV/u. The effects caused by the collision multiplicity and the orientation of the axis of target molecule are treated. It is shown that collision multiplicity effect leads to considerable differences for the cases of perpendicular and parallel orientations of the molecular axes with respect to the direction of the projectile motion, while for chaotic orientation such effect is negligible.