Electron-impact cross sections for dissociation processes of vibrationally excited CH radical

TL;DR

This study provides detailed theoretical cross sections for electron-impact dissociation of vibrationally excited CH radicals, aiding understanding of plasma and astrophysical processes involving CH molecules.

Contribution

It introduces a comprehensive theoretical analysis of dissociation cross sections for vibrationally excited CH radicals using ab-initio and nuclear dynamics methods.

Findings

Vibrationally resolved cross sections are calculated for CH radicals.

Results enhance understanding of non-equilibrium plasma kinetics.

Data supports applications in plasma technology and astrophysics.

Abstract

This paper presents a theoretical investigation of the cross sections for dissociative electron attachment and dissociative excitation processes in vibrationally excited CH radicals induced by electron impact. Resonant electron-CH collisions are analyzed using the ab-initio R-matrix method, while nuclear dynamics are explored within the Local Complex Potential framework. A comprehensive set of vibrationally resolved cross sections and rate coefficients is provided for both the ground and first excited electronic states of the CH molecule. These findings contribute to a better understanding of the kinetics of non-equilibrium systems containing CH molecules with applications in plasma technologies for CO2 reduction, combustion processes and various astrophysical contexts.