Multiphase critical Higgs boson at colliders

The recently proposed multiphase criticality principle in Coleman-Weinberg models can provide a new explanation for the hierarchy between the electroweak and new physics scales. When applied to the Standard Model, a Higgs boson as light as the pseudo-Goldstone boson of broken-scale invariance occurs. The suppressed mixing between the two light fields still carries information about the large scale of symmetry breaking, albeit up to logarithmic corrections. In this work we probe this scenario with the present LHC data and assess the impact of future lepton and hadron colliders. Our results show that the multiphase criticality can easily explain the apparent absence of new physics at the energy scales tested in current experiments.

Automated summary

The recently proposed multiphase criticality principle in Coleman-Weinberg models provides a new explanation for the hierarchy between the electroweak and new physics scales. This principle suggests that a light Higgs boson can exist as a pseudo-Goldstone boson. The mixing between the two light fields carries information about the large scale of symmetry breaking and can explain the apparent absence of new physics at the energy scales tested in current experiments.