Fine-structure transitions in the exit channel of K+Ar optical collisions

Autor: O. Hoffmann, J. Grosser, Frank Rebentrost, Cristina Figl
Rok vydání: 2005
Předmět:
Zdroj: Europhysics Letters (EPL). 69:353-357
ISSN: 1286-4854
0295-5075
DOI: 10.1209/epl/i2004-10364-5
Popis: We study K+Ar collisions by laser excitation of the collision pair in a differential scattering experiment. The relative population of the K(4p)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.
Databáze: OpenAIRE