Trilinear Gauge Couplings from γγ → W + W −

If there is no the Standard Model Higgs boson, the interaction among the gauge bosons becomes strong at high energies (∼ 1TeV). The effects of strong electroweak symmetry breaking could manifest themselves indirectly through the vertices as anomalous gauge boson couplings before they give rise to new physical states like resonances. Here a study of the measurement of trilinear gauge couplings κγ and λγ is presented looking at the hadronic decay channel of the WW boson pair at an γγ collider. A sensitivity of O(10 − 10) can be reached depending on the coupling under consideration and on the initial polarisation state.