Llanes Estrada, Felipe JoséPeláez Sagredo, José RamónGómez Nicola, Ángel2023-06-202023-06-202005981-256-135-810.1142/9789812702159_0036https://hdl.handle.net/20.500.14352/53336This work is supported by the Spanish research projects FPA2000-0956,PB98-0782, BFM2000- 326 and FPA2004-02602. International Conference on Strong and Electroweak Matte (6. 2004. Helsinki, Finlandia)We review our recent work on thermal meson proper-ties within the Chiral Perturbation Theory framework. We will focus on the pion electromagnetic form factor, stressing its importance for Relativistic Heavy Ion Collisions. We obtain model-independent predictions (based only on chiral symmetry) such as the temperature dependence of the pion electromagnetic charge radius. Imposing unitarity allows to describe the thermal effects of resonances such as the rho meson.engbook parthttp://dx.doi.org/10.1142/9789812702159_0036http://arxiv.org/abs/hep-ph/0408110http://www.worldscientific.comopen access53Heavy-Ion CollisionsPerturbation-TheoryFinite TemperatureSymmetry RestorationPhase-TransitionPion ScatteringAu CollisionsForm-FactorEnhancementDileptonsFísica (Física)22 Física