Abstract
There are many extensions to the Standard Model of particle physics which predict the addition of a U(1) symmetry, and/or extra spatial dimensions, which give rise to new high mass resonances such as the Z' and Randall-Sundrum graviton. The LHC provides a unique opportunity to explore the TeV scale where these phenomena may become apparent, and can be searched for using the precision tracking and high energy resolution calorimetry of the ATLAS detector. This poster presents the search for high mass resonances in the dilepton channel, and was conducted with an integrated luminosity of 1.08/1.21 fb-1 in the dielectron/dimuon channel respectively, at a centre of mass energy \surd s = 7 TeV.
Highlights
The search for dilepton resonances was conducted in both the electron and muon channels separately, which were combined to give the final result
This poster presents the search for high mass resonances in the dilepton channel, and was conducted with an integrated luminosit√y of 1.08/1.21 fb−1 in the dielectron/dimuon channel respectively, at a centre of mass energy s = 7 TeV
The main background to a Z′/G∗ search in these channels is from Drell-Yan, with smaller contributions from tt, W+jets, diboson, and QCD events 1
Summary
This poster presents the search for high mass resonances in the dilepton channel, and was conducted with an integrated luminosit√y of 1.08/1.21 fb−1 in the dielectron/dimuon channel respectively, at a centre of mass energy s = 7 TeV. The search for dilepton resonances was conducted in both the electron and muon channels separately, which were combined to give the final result. To identify candidate events from data, each analysis selected high energy electron/muon pairs.
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