Electroweak chiral Lagrangians and the Higgs properties at the one-loop level

In these proceedings we explore the use of (non-linear) electroweak chiral Lagrangians for the description of possible beyond the Standard Model (BSM) strong dynamics in the electroweak (EW) sector. Experimentally one observes an approximate EWsymmetry breaking patternSU(2)(L)xSU(2)(R)/SU(2)(L+R). Quantum Chromodynamics (QCD) shows a similar chiral structure [1] and, in spite of the differences (in the EW theory SU(2)(L) x U(1)(Y) is gauged), it has served for years as a guide for this type of studies [2-4]. Examples of one-loop computations in the low-energy effective theory and the theory including the first vector (V) and axial-vector (A) resonances are provided, yielding, respectively, predictions for gamma gamma -> Z(L)Z(L), WL+WL- and the oblique parameters S and T.