Search for Higgs Boson Pair Production in the \(\gamma\gamma b\bar{b}\) Final State using \(pp\) Collision Data at \(\sqrt{s}=8\)TeV from the ATLAS Detector

Abstract

Searches are performed for resonant and non-resonant Higgs boson pair production in the \(hh \rightarrow \gamma\gamma b \overline b\) final state using 20 fb\(^{-1}\) of proton--proton collisions at a center-of-mass energy of 8TeV recorded with the ATLAS detector at the CERN Large Hadron Collider. A 95% confidence level upper limit on the cross section times branching ratio of non--resonant production is set at 2.2 pb, while the expected limit is 1.0 pb. The corresponding limit observed for a narrow resonance ranges between 0.8 and 3.5 pb as a function of its mass.