학술논문

Dissociative recombination of the CH$^+$ molecular ion at low energy
Document Type
Working Paper
Source
J. Phys. B: At. Mol. Opt. Phys. 51 (2018) 104002 (8pp)
Subject
Astrophysics - Instrumentation and Methods for Astrophysics
Physics - Atomic Physics
Physics - Plasma Physics
Language
Abstract
The reactive collisions of the CH$^+$ molecular ion with electrons is studied in the framework of the multichannel quantum defect theory, taking into account the contribution of the core-excited Rydberg states. In addition to the $X^1\Sigma^+$ ground state of the ion, we also consider the contribution to the dynamics of the $a^3\Pi$ and $A^1\Pi$ excited states of CH$^+$. Our results - in the case of the dissociative recombination in good agreement with the storage ring measurements - rely on decisive improvements - complete account of the ionisation channels and accurate evaluation of the reaction matrix - of a previously used model.
Comment: 8 pages, 8 figures