Aula Conversi (Dip. di Fisica - Edificio G. Marconi)
Aula Conversi
Dip. di Fisica - Edificio G. Marconi
Description
In recent years many states were discovered both in the charmonium as well as in the bottomonium sector that do not fit into the standard quark model picture - this is especially true for the charged states $Z_b(10610)$, $Z_b(10650)$, $Z(4430)$, $Z_c(3900)$ and $Z_c(4020)$.
The nature of these states is heavily discussed in the literature. Since most of the new states are located close to continuum thresholds, a very promising proposal for these states is that they are molecules, formed from those continuum states. In the talk I will review the fundamental concepts for the theoretical treatment of hadronic molecules as well as discuss in detail, which observables are sensitive to a prominent molecular component in the wave function and which are not.
