Electron transfer collisions between sulfur dioxide clusters and laser-excited Rydberg atoms |
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Authors: | C. Desfrancois N. Khelifa A. Lisfi J. P. Schermann |
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Affiliation: | 1. Laboratoire de Physique des Lasers, CSP, Université Paris-Nord, F-93430, Villetaneuse, France
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Abstract: | Electron attachment to SO2 clusters is studied in a pulsed crossed beam apparatus, using laser-excited nf Rydberg atoms as a low energy electron source. The results are interpreted as an attachment to a dimer subcluster followed by a rapid impulsive dissociation of the nascent dimer anion. The remaining cluster anions possess a large amount of internal energy. At low principal quantum numbersn, the influence of the Rydberg ionic core leads to an important evaporation process interpreted with simple model calculations. |
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