Lifetime of reactive scattering resonances: Q-matrix analysis and angular momentum dependence for the F + H2 reaction by the hyperquantization algorithm

The effect of metastable states on reactive observables, such as integral cross sections and angular distributions, is investigated. We report a study on the behavior with total angular momentum of several resonances occurring at collision energies below or slightly above the reaction barrier of the title reaction. Positions and widths of resonance states are extracted from rigorous quantum mechanical calculations using the hyperquantization algorithm and the time-delay matrix formalism introduced by Felix Smith.