| Issue |
Europhys. Lett.
Volume 69, Number 3, February 2005
|
|
|---|---|---|
| Page(s) | 353 - 357 | |
| Section | Atomic and molecular physics | |
| DOI | https://doi.org/10.1209/epl/i2004-10364-5 | |
| Published online | 05 January 2005 | |
Fine-structure transitions in the exit channel
of 
optical collisions
1
Institut für Atom- und Molekülphysik, Universität Hannover 30167 Hannover, Germany
2
Max-Planck-Institut für Quantenoptik - 85748 Garching, Germany
Received:
21
September
2004
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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