Original version
Physics Letters B. 2018, 787, 23-29, DOI: http://dx.doi.org/10.1016/j.physletb.2018.08.067
Abstract
Diphoton channel provides a clean signature in searches for new physics. In this paper, we discuss a connection between the diphoton channel (γγ ) and triboson channels (Zγγ , Z Zγ , W W γ ) imposed by the SU(2)L × U(1)Y symmetry of the Standard Model (SM) in certain classes of models. To illustrate this idea we choose a simple model that has all these channels. In this model, the same physics can give rise to γ + MET instead of γγ and 2 bosons plus missing energy instead of 3-boson channels. We analyze existing constraints and previous searches and show that channels W W γ and especially Zγ + MET have a potential to discover new physics at the LHC.