What is a quasibound state and how is it different from a bound state?
I have read this term in nuclear physics in the context of compound nucleus formation. A compound nucleus $C$ is formed by the absorption of a projectile 'a' (say a nucleon) by a target nucleus which is called a quasibound state.
The current answer by @Paul defines a quasibound state as a metastable state around a local minimum. But how can the nuclear potential, which is of Woods-Saxon type, have quasibound states? It does not seem to have a local minimum like the one shown below.