The rho meson in a nuclear medium

In this work, propagation properties of the rho meson in symmetric nuclear matter are studied. We make use of a coupled channel unitary approach to me son-meson scattering, calculated from the lowest order Chiral Perturbation Theory (chi PT) lagrangian including explicit resonance fields. Low energy chiral constraints are considered by matching our expressions to those of o ne loop chi PT. To account for the medium corrections, the rho couples to p i pi and K K pairs which are properly renormalized in the nuclear medium.