Physical Review A
American Physical Society
The formalism developed previously to study electronic transitions by the curve-crossing mechanism is used to obtain a general model for transitions which take place due to the strong coupling of curves which do not cross. This exactly solvable model is a generalization of a model developed by Rosen and Zener. The model is shown to give respectable agreement with exact calculations at low velocities, and to go to the correct resonant-charge-exchange limit at high velocities. Predictions of the model are shown to give good agreement with the measured total cross sections for charge exchange in the sytem Li+ + Na⇄Li+Na+.
Dinterman, T. R. and Delos, John B., Generalization of the Rosen-Zener Model of Noncrossing Interactions. I. Total Cross Sections (1977). Physical Review A, 15(2), 463-474.