Recently, the ATLAS and CMS collaborations have announced the discovery of a 125 GeV particle, commensurable with the Higgs boson. We analyze the 2011 and 2012 LHC and Tevatron Higgs data in the context of simplified new physics models, paying close attention to models which can enhance the diphoton rate and allow for a natural weakscale theory. Combining the available LHC and Tevatron data in the h ® ZZ* ® 4l, h ® WW*® lvlv, h ®, gg, hjj ® ggjj and hV ® bbV channels, we derive constraints on an effective low-energy theory of the Higgs boson. We map several simplified scenarios to the effective theory, capturing numerous new physics models such as supersymmetry, composite Higgs, dilaton. We further study models with extended Higgs sectors which can naturally enhance the diphoton rate. We find that the current Higgs data are consistent with the Standard Model Higgs boson and, consequently, the parameter space in all models which go beyond the Standard Model is highly constrained.
- Beyond standard model
- Higgs physics
ASJC Scopus subject areas
- Nuclear and High Energy Physics