Time domain, resonances simulation results

Scattering cross sections for chemical reactions may exhibit structure due to resonance or due to other dynamical effects such as interference or threshold phenomena. It is useful to have techniques that can identify resonance behavior in theoretical simulations and distinguish it from other sorts of dynamics [67]. Since resonance is associated with dynamical trapping, the concept of the collision time delay proves quite useful in this regard. Of course since collision time delay for chemical reactions is typically in the subpicosecond domain, this approach is, at present, only useful in analyzing theoretical scattering results. Nevertheless, time delay is a valuable tool for the theoretical identification of reactive resonances. 

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