Optimization of event selection and fake background estimation in a search for heavy scalars in dilepton final states with the ATLAS detector
The discovery of the Higgs boson h in 2012 further confirmed the remarkable accuracy of the Standard Model (SM). Despite this, some compelling excesses in multi-lepton final states were recorded in both major runs of the Large Hadron Collider (LHC). The excesses can be explained by the introduction of a model where a heavy boson X decays into a SM Higgs boson h and a singlet scalar S with Higgs-li
