Search for high mass dilepton resonances in pp collisions at sqrt{s}=7 TeV with the ATLAS experiment

Understand

This article presents a search for high mass e e or mu mu resonances in pp collisions at sqrt{s} = 7 TeV at the LHC.

• The data were recorded by the ATLAS experiment during 2010 and correspond to a total integrated luminosity of ~40/pb.
• No statistically significant excess above the Standard Model expectation is observed in the search region of dilepton invariant mass above 110 GeV.
• Upper limits at the 95% confidence level are set on the cross section times branching ratio of Z' resonances decaying to dielectrons and dimuons as a function of the resonance mass.