Composite Higgs models are very promising candidate models to address
the long-standing naturalness problem in the Standard Model.
Among them, the most minimal one is the SU(2) with 2 flavours of
fermions in the fundamental representation of the gauge group.
An important prediction in these models is the existence of resonance
spectrum in vector boson scattering. In this talk I will describe our
study of the lowest such resonance, which is the equivalent of rho
resonance in QCD.
I will describe the scan of the parameter space using the
clover-improved Wilson fermions with Symanzik improved gauge action and
then show the first results for the mass and width of the rho resonance
in this model.