Dissociative Recombination of CH+ Molecular Ion Induced by Very Low Energy Electrons

Author:

Mezei Zsolt J.ORCID,Epée Epée Michel D.,Motapon OusmanouORCID,Schneider Ioan F.

Abstract

We used the multichannel quantum defect theory to compute cross sections and rate coefficients for the dissociative recombination of CH + initially in its lowest vibrational level v i + = 0 with electrons of incident energy below 0.2 eV. We have focused on the contribution of the 2 2 Π state which is the main dissociative recombination route at low collision energies. The final cross section is obtained by averaging the relevant initial rotational states ( N i + = 0 , ⋯ , 10 ) with a 300 K Boltzmann distribution. The Maxwell isotropic rate coefficients for dissociative recombination are also calculated for different initial rotational states and for electronic temperatures up to a few hundred Kelvins. Our results are compared to storage-ring measurements.

Publisher

MDPI AG

Subject

Condensed Matter Physics,Nuclear and High Energy Physics,Atomic and Molecular Physics, and Optics

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