Model-Potential Calculations on the Molecular System NaNe

Calculations for the $X{}_{}{}^2{}_{}{}^{}\Sigma$, $A{}_{}{}^2{}_{}{}^{}\Pi$, and $B{}_{}{}^2{}_{}{}^{}\Sigma$ states of the NaNe molecular system are reported. The electron-neon interaction is represented by a local potential together with an explicit orthogonality condition to the neon orbitals. The well depth and location are $D=7.8\mathrm{}$ ${\mathrm{cm}}^{-1\mathrm{}}$ at ${\mathcal{r}}_m=10\mathrm{}$ a.u. for the $X{}_{}{}^2{}_{}{}^{}\Sigma$ state and $D=132\mathrm{}$ ${\mathrm{cm}}^{-1\mathrm{}}$ at ${\mathcal{r}}_m=5\mathrm{}$ a.u. for the $A{}_{}{}^2{}_{}{}^{}\Pi$ state, in excellent agreement with the laser-spectroscopy results of Ahmad-Bitar et al.