Can the 125 GeV Higgs be the Little Higgs?

Understand

After the discovery of the Higgs-like boson by the LHC 2012 it is the most important task to check whether this new particle is the Standard Model Higgs boson or something else.

• In this paper, we study whether the 125 GeV boson could be the pseudo-Goldstone boson of Little Higgs models.
• We derive limits on the parameter space of several Little Higgs models (simple group and product group models, with and without T-parity), both from the experimental data from ATLAS and CMS about the different Higgs discovery channel and the electroweak precision observables.
• We perform a fit of several Little Higgs models to all electroweak parameters from measurements of SLC, LEP, Tevatron, and LHC.