Collider production of electroweak resonances from $gammagamma$ states

Abstract

We estimate production cross sections for 2-body resonances of the Electroweak Symmetry Breaking sector (in WLWL and ZLZL rescattering) from Î_s11Î_s11 scattering. We employ unitarized Higgs Effective Field Theory amplitudes previously computed coupling the two photon channel to the EWSBS. We work in the Effective Photon Approximation and examine both e−e_s16 collisions at energies of order 1â_s08“2 TeV (as relevant for future lepton machines) and pp collisions at LHC energies. Dynamically generating a spin-0 resonance around 1.5 TeV (by appropriately choosing the parameters of the effective theory) we find that the differential cross section per unit s, p2t is of order 0.01 fbarn/TeV4 at the LHC. Injecting a spin-2 resonance around 2 TeV we find an additional factor 100 suppression for pt up to 200 GeV. The very small cross sections put these Î_s11Î_s11 processes, though very clean, out of reach of immediate future searches.