  We investigate the implications of a putative new resonance in the TeV region
coupled to the weak bosons. By studying perturbative unitarity in longitudinal
WW scattering, we find that a weakly coupled spin-1 resonance, that explains
the ATLAS diboson excesses, is allowed with a SM-like Higgs. On the other hand,
larger values of the resonance couplings, preferred in models of strong
dynamics, would imply either sizeable reduction of the Higgs couplings or new
physics, beyond the diboson resonance, at a few TeV.

High Energy Physics - Phenomenology;High Energy Physics - Experiment