Forrey, R. C.Balakrishnan, N.Dalgarno, A.Haggerty, M. R.Heller, E. J.2019-09-272001Forrey, R. C., N. Balakrishnan, A. Dalgarno, M. R. Haggerty, and E. J. Heller. 2001. “Effect of Quasiresonant Dynamics on the Predissociation of van Der Waals Molecules.” Physical Review A 64 (2). https://doi.org/10.1103/physreva.64.022706.1050-29471094-1622http://nrs.harvard.edu/urn-3:HUL.InstRepos:41417410Rotational and vibrational distributions of zero-temperature collisional rate coefficients for atom-diatom scattering are used together with effective range theory to obtain lifetimes for predissociation. High-order indirect potential coupling in the quantum-mechanical calculation is interpreted using a simple classical picture that describes the quasiresonant dynamics of atom-diatom collisions by the conservation of classical action. The importance of closed channel thresholds in determining the structure of the distributions and the balance between momentum gap and near-resonant effects is discussed.en-USJournal Article2019-09-2710.1103/PhysRevA.64.022706