Chiral Perturbation Theory and Unitarization
  We review our recent work on unitarization and chiral perturbation theory both in the $\pi\pi$ and the $\pi N$ sectors. We pay particular attention to the Bethe-Salpeter and Inverse Amplitude unitarization methods and their recent applications to $\pi\pi$ and $\pi N$ scattering. 
E. Ruiz Arriola (1), A. G\'omez Nicola (2), J. Nieves (1) and J. R.   Pel\'aez(2) ((1) Departamento de Fisica Moderna, Unive...