EPJ

2023 Impact factor 1.5
EPJ D - Atomic, Molecular, Optical and Plasma Physics
Atomic, Molecular, Optical and Plasma Physics
Eur. Phys. J. D 56, 67-72 (2010)
DOI: 10.1140/epjd/e2009-00267-5

Cross section and rate coefficient calculations for electron impact excitation of the a  $^{\sf 3}{\sf\Pi}$, a'  $^{\sf 3}{\sf\Sigma^{+}}$, d  $^{\sf 3}{\sf\Delta}$, e  $^{\sf 3}{\sf\Sigma^{-}}$, I  $^{\sf 1}{\sf\Sigma^{+}}$ and D  $^{\sf 1}{\sf\Delta}$ states of CO

R. Riahi1, Ph. Teulet2, N. Jaïdane1 and A. Gleizes2

1  Laboratoire de Spectroscopie Atomique, Moléculaire et Applications (LSAMA), Faculté des Sciences de Tunis, Université de Tunis el Manar, 1060 Tunis, Tunisia
2  Laboratoire Plasma et Conversion d'Énergie (LAPLACE), UMR UPS-INP-CNRS 5213, Université Paul Sabatier Toulouse 3, 118 route de Narbonne, 31062 Toulouse Cedex 09, France

riadhzah@yahoo.fr

Received 13 August 2009 / Received in final form 14 September 2009 / Published online 6 November 2009

Abstract
An efficient theoretical method for investigating the cross sections and rate coefficients of electron impact excitation processes involving carbon monoxide (CO) diatomic molecules has been applied in the temperature range 1500–15 000 K. The weighted total cross section (WTCS) theory has been used to investigate the cross sections excitation of the a  $^{\sf 3}\Pi$, a'  $^{\sf 3}\Sigma^{+}$, d  $^{\sf 3}\Delta$, e  $^{\sf 3}\Sigma^{-}$, I  $^{\sf 1}\Sigma^{+}$ and D  $^{\sf 1}\Delta$ states of CO. The 300 K cross sections as a function of electron energy and one temperature rate coefficients results are presented and fitting parameters (a, b and c) are given for each reaction rate coefficient: $k(\theta) = a (\theta^{b}) \exp (-c/\theta)$.

PACS
52.20.J - Elementary processes in plasmas.
52.20.Fs - Electron collisions.
82.33.Xj - Plasma reactions.

© EDP Sciences, Società Italiana di Fisica, Springer-Verlag 2009

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