Semiclassical shape of satellite bands: Application to CsAr

A term representing interference between classical paths is isolated from the previously derived equation for the semiclassical shape of satellite bands. A band shape quantitatively accurate in the adiabatic one-perturber approximation is given by addition of the classicalpath contributions to the interference term. Comparison is made to a quantum-mechanical calculation of a satellite band in the red wing of the self-broadened Lyman-$\alpha$ line of hydrogen and to an experimentally observed band in the blue wing of the cesium 8521-$\mathrm{A}$ resonance line perturbed by argon. The problem of inversion to determine a difference potential from the observed band shape is discussed.