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In this work, we review how the mass and the width of the $f_{0}(500)$ polebehave in a regime where temperature is below the critical chiral transitionvalue. This is attained by considering a large-$N$ $O(N + 1)/O(N)$ invariantNon-Linear Sigma Model (NLSM) such that we can study the dynamical generationof a $f_{0}(500)$ resonance. Introducing thermal effects via the imaginary timeformalism allows us to study the behavior of the pole and relate it to chiralrestoration.

Large-$N$ Pion Scattering, Finite-Temperature Effects and the Relationship of the $f_{0}(500)$ with Chiral Symmetry Restoration