Binding energy per nucleon and hadron properties in nuclear matter

We investigate the binding energy per nucleon and hadron properties in infinite and homogeneous nuclear matter within the framework of the in-medium modified Skyrme model. We first consider the medium modifications of the single hadron properties by introducing the optical potential for pion fields into the original Lagrangian of the Skyrme model. The parameters of the optical potential are well fitted to the low-energy phenomenology of pion-nucleus scattering. Furthermore, the Skyrme term is also modified in such a way that the model reproduces bulk properties of nuclear matter, in particular, the binding energy per nucleon. The present approach is self-consistent: the single hadron properties in a nuclear medium, their effective in-medium interactions, and the bulk matter properties are treated on the same footing.