Rotational distributions following the decay of long-lived states

3 Rotational distributions following the decay of long-lived states 

We distinguish two limiting cases dissociation through a narrow transition state and dissociation through a wide transition state where we define the region that separates the reactants and the products (i.e., the point of no return ) as the transition state. The first case may be qualitatively considered as a direct process with the ultimate dissociation starting at the transition state. The second case may be treated by statistical methods without including dynamical constraints. We will discuss both limits separately and illustrate them with typical examples. 

---

Schinke, R., Untch, A., Suter, H.U., and Huber, J.R. (1991). Mapping of transition-state wave functions I. Rotational state distributions following the decay of long-lived resonances in the photodissociation of HONO(Si), J. Chem. Phys. 94, 7929-7936. 

---