Gómez Nicola, ÁngelFernández Fraile, Daniel2023-06-202023-06-202010978-0-7354-0878-4https://hdl.handle.net/20.500.14352/45564© Amer Inst Physics. International Workshop on Chiral Symmetry in Hadrons and Nuclei (2010. Valencia, España). Work partially supported by the Spanish research contracts FPA2008-00592, FIS2008- 01323, UCM-BSCH GR58/08 910309.We review recent results on properties of the meson gas relevant for Heavy Ion Collision and Nuclear Matter experiments, within the framework of chiral lagrangians. In particular, we describe the temperature and density evolution of the sigma and rho poles and its connection with chiral symmetry restoration, as well as the chemical nonequilibrated phase and transport coefficients.engbook parthttp://dx.doi.org/10.1063/1.3542028http://scitation.aip.orgopen access51-73Heavy-ion collisionsNuclear-matterFinite-temperaturePhase-transitionScatteringDileptonsFísica-Modelos matemáticosFísica matemática