  In this theoretical work, we calculate potential energy curves, spectroscopic
pa- rameters and transition dipole moments of molecular ions BeX^+ (X=Na, K,
Rb) composed of alkaline ion Be and alkali atom X with a quantum chemistry
approach based on the pseudopotential model, Gaussian basis sets, effective
core polarization potentials, and full configuration interaction (CI). We study
in detail collisions of the alkaline ion and alkali atom in quantum regime.
Besides, we study the possibility of the formation of molecular ions from the
ion-atom colliding systems by stimu- lated Raman adiabatic process and discuss
the parameters regime under which the population transfer is feasible. Our
results are important for ion-atom cold collisions and experimental realization
of cold molecular ion formation.
