Abstract

We analyze the electromagnetic and strong decay properties of the light scalars a(0)(980) and f(0)(980) within a hadronic molecule interpretation. Both scalars are discussed within a covariant and gauge invariant model which also allows for finite size effects due to their spatially extended structure in the K (K) over bar -bound state picture. Allowing for f(0)-a(0) mixing we also study its influence on the radiative decays f(0)/a(0) -> gamma gamma, f(0)/a(0) -> gamma omega, and f(0)/a(0) -> gamma rho as well as the phi production of the f(0) and a(0). Furthermore, we apply our formalism to describe the strong f(0) -> pi pi and a(0) -> pi eta decay properties.