title: Resonance-mediated chemical reaction: F+HD-->HF+D
abstract: Conclusive evidence is presented for the existence of a reactive resonance in the F+HD reaction. In a molecular beam experiment, the resonance appears in the integral cross section as a distinct steplike feature, while in the differential cross section it is manifested as sharply varying forward-backward peaks in the product distribution. A detailed analysis of the quantum dynamics establishes that a reactive resonance localized in the transition-state region is responsible for these remarkable observations. At collision energies below 1 kcal/mol, the reaction proceeds almost exclusively through resonant tunneling with very little contribution from the more conventional direct mechanism.
authors.affiliation: Institute of Atomic and Molecular Sciences, Academia Sinica, Taipei, Taiwan 106, Republic of China and Department of Chemistry, University of Colorado, Boulder, Colorado 80309.
authors.initials: RT
authors.lastname: Skodje
authors.initials: D
authors.lastname: Skouteris
authors.initials: DE
authors.lastname: Manolopoulos
authors.initials: SH
authors.lastname: Lee
authors.initials: F
authors.lastname: Dong
authors.initials: K
authors.lastname: Liu