Baryons and antibaryons in compressed nuclear matter

In this work we discuss the in-medium properties of baryons and antibaryons in nuclear matter at densities beyond saturation. We focus attention on optical potentials heavy with strangeness content. That is, hyperons Λ, Σ S=-1 cascade particle Ξ S=-2 . The particular treatment inside compressed is crucial order to understand modifications conditions that may occur interior neutron stars. dicsuss further their antiparticles, since there are experimental data for nucleonic sector (S=0) while (S=-1,-2) information will be available close future new facilities, instance, FAIR J-PARC.