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Nonadiabatic transitions in the exit channel of atom-molecule collisions: fine-structure branching in Na+N2
C Figl1, R Goldstein, J Grosser
1Institut für Atom- und Molekülphysik, Universität Hannover, 30167 Hannover, Germany.
Abstract:
We study Na+N(2) collisions by laser excitation of the collision complex in a differential scattering experiment. The measured relative population of the Na(3p) fine-structure levels reflects the nonadiabatic transitions occurring in the exit channel of the collision. Theoretical results obtained with a classical-path formalism and accurate quantum chemical data for NaN(2) are found to be in good agreement. The presence of a conical intersection for the T-shaped geometry has a profound influence on the observed fine-structure branching.
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