Extended approximated Born-Oppenheimer equation. II. Application

In this work is applied the extended-approximated Born-Oppenheimer (BO) equation, as derived in the preceding article [Phys. Rev. A 62, 032506, (2000)] to a tristate system. For this sake an appropriate scattering two-arrangement-two-coordinate model was devised. The calculations for each energy were done three times: once without doing any approximation, and two times by approximating the three coupled Schrodinger equations by two different, but gauge-related, single (extended) BO equation. State-to-state (reactive and nonreactive) transition probabilities were obtained, indicating that the new extended approximate BO equations yield relevant results for a tristate system.