Abstract

We discuss a possible interpretation of the f(0)(980) and a(0)(980) mesons as hadronic molecules - a bound state of K and (K) over bar mesons. Using a phenomenological Lagrangian approach we calculate the strong f(0)(980) -> pi pi and a(0)(980) -> pi eta as well as the electromagnetic f(0)(980) -> gamma gamma and a(0)(980) -> gamma gamma decays. The covariant and gauge invariant model, which also allows for finite size effects of the hadronic molecule, delivers results in good agreement with available data and results of other theoretical approaches.