Volume 69, Number 3, February 2005
|Page(s)||353 - 357|
|Section||Atomic and molecular physics|
|Published online||05 January 2005|
Fine-structure transitions in the exit channel of optical collisions
Institut für Atom- und Molekülphysik, Universität Hannover 30167 Hannover, Germany
2 Max-Planck-Institut für Quantenoptik - 85748 Garching, Germany
Accepted: 24 November 2004
We study collisions by laser excitation of the collision pair in a differential scattering experiment. The relative population of the K()2P fine-structure sublevels reflects the nonadiabatic coupling in the convergence region of the interaction potentials and illustrates the energy dependence of the nonadiabatic transition probability. Close coupling scattering calculations show a very good agreement with the experimental results, indicating a corresponding accuracy of the available potential data. The spin-orbit interaction in the coupling region is found to be not significantly different from the free atom value.
PACS: 34.50.Rk – Laser-modified scattering and reactions / 31.50.Gh – Surface crossings, non-adiabatic couplings / 34.20.-b – Interatomic and intermolecular potentials and forces, potential energy surfaces for collisions
© EDP Sciences, 2005
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