Enhancements of weak gauge boson scattering processes at the CERN LHC

Understand

Current CERN Large Hadron Collider data on the 126 GeV standard model-like Higgs boson suggest the possibility of larger Higgs boson couplings with the weak gauge bosons, $g_{hVV}$, than those in the standard model.

• We use the Georgi-Machacek model as an explicit model to realize such a scenario.
• We find that the $g_{hVV}$ couplings can be larger than the standard model value by a factor of about 1.3 maximally in the parameter region consistent with the current Higgs boson search data and allowed by various other constraints.
• We then show how the modified $g_{hVV}$ couplings lead to enhancements in various weak boson scattering processes.