Theoretical Approaches to Study the Vibrational Predissociation of Van Der Waals Molecules

Abstract

Different approaches are presented for the study of vibrational predissociation of triatomic van der Waals molecules. These methods are applied to the study of the He-I₂ when I₂ is excited to the B electronic state.The applicability of these methods is discussed in detail by comparing with “exact” quantum results.