Long-range interaction of two metastable rare-gas atoms

Abstract

We present semiempirical calculations of long-range van der Waals interactions for two interacting metastable rare-gas atoms Ne through Xe. Dispersion coefficients C-6 are obtained for homonuclear molecular potentials asymptotically connecting to the ns(3/2)(2) + ns(3/2)(2) atomic states. The estimated uncertainty of the calculated C-6 dispersion coefficients is 4%.