The Potential Energies of the Na** + He Quasi-Molecule

摘要

The special features of the behavior of the potential energy surfaces of the system comprising ahighly excited A** atom and a neutral B atom with a filled electronic shell were thoroughly analyzed. This wasdone using the integral variant of theory combined with the generalized finite radius potential method cor-rectly describing the scattering of a weakly bound electron by the B atom. The method allows P scattering tobe taken into account. This scattering causes the additional splitting of potential energy surfaces into separategroups of interacting terms classified according to the projection m of the electron angular momentum I ontothe quasimolecular axis. Calculations of the nl(2 +1∧) state potential curves of the Na** + He quasi-mole-cule (n, I, and A are the principal quantum number, angular momentum, and its projection onto the molec-ular axis, and s is the spin of the system) were performed. The calculation results were compared to thoseobtained by other authors.