Pressure broadening of H2O in the (301)←(000) band: effects of angular momentum and close intermolecular interactions

Abstract

Two spectroscopic lines of water vapor, broadened by N2, are examined within the Complex Robert–Bonamy formalism in an effort to understand their sensitivity to short-range interactions. The two lines, both of which occur in the (301)←(000) band, are compared in terms of their dependence on impact parameter, sensitivity to convergence of the short-range potential, and the symmetry terms of the intermolecular potential.