%0 Journal Article %T A Light Dynamical Scalar Boson %A Alonso %A R. %A Gavela %A M. B. %A Merlo %A L. %A Rigolin %A S. %A Yepes %A J. %J High Energy Physics - Phenomenology %D 2013 %I %X With the discovery of a scalar resonance at ATLAS and CMS, the understanding of the electroweak symmetry breaking origin seems a much closer goal. A strong dynamics at relatively low scales is still a good candidate. In this talk, the complete effective Lagrangian up to d < 6 will be presented, both for the gauge and the flavour sectors. Interesting features in the flavour phenomenology will be discussed. %U http://arxiv.org/abs/1304.5937