Non-dissociative single-electron capture by CO2+ from rare gases |
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| Institution: | 1. Eawag: Swiss Federal Institute of Aquatic Science and Technology, Überlandstrasse 133, 8600, Dübendorf, Switzerland;2. Leibniz Centre for Tropical Marine Research (ZMT), Fahrenheitstraße 6, 28359, Bremen, Germany;1. Europa-Universität Viadrina, Frankfurt (Oder), Germany;2. University of North Carolina at Charlotte, Charlotte, NC, USA;1. Department of Informatics, Modelling, Electronics and System Engineering, University of Calabria, 87036, Arcavacata di Rende, CS, Italy;2. Department of Civil, Constructional and Environmental Engineering-DICEA, Sapienza University of Rome, Italy |
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| Abstract: | The state-selective non-dissociative single-electron capture reactions of 6 keV CO2+ ions from rare gas (He, Ne, Ar, Kr, Xe) targets are investigated by translational energy spectroscopy. Capture from CO2+ (3Π) into doublet states of CO+ dominates. However, there are firm indications for the involvement of electronically excited CO2+ (1.7 eV above CO2+ (3Π) in the projectile beam, and also for the formation of quartet states of CO+. Landau-Zener reaction windows, derived specifically for atomic ion-atom systems, are applied to this diatomic dication-atom series, giving excellent agreement with experiment. |
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