Abstract
A brief overview of searches for high mass resonances using a subset of data collected by the ATLAS experiment during the 2011 LHC run is presented. Various final states are explored including dilepton, diphoton, lepton with missing transverse energy, dijet, photon with a jet, top anti-top pairs, and Z boson pairs. No new resonance has been found and limits on several new physics models are set.
Highlights
A brief overview of searches for high mass resonances using a subset of data collected by the ATLAS experiment during the 2011 LHC run is presented
The Standard Model (SM) of particle physics has been stunningly successful in explaining experimental data
At the time of writing the mechanism of electroweak symmetry breaking is unconfirmed, no viable candidate for dark matter particle has been observed and the hierarchy of masses of particles is unnatural within the SM
Summary
The Standard Model (SM) of particle physics has been stunningly successful in explaining experimental data. At the time of writing the mechanism of electroweak symmetry breaking is unconfirmed, no viable candidate for dark matter particle has been observed and the hierarchy of masses of particles is unnatural within the SM. Several of the proposed solutions to these problems result in the production of heavy resonances with masses accessible at the LHC. In these proceedings an overview of several searches for such resonances performed at the ATLAS experiment [1] is presented. Final states explored range from experimentally clean dilepton and diphoton states to quite challenging to analyze ttand diboson final states. Data presented here have been collected during the 2011 LHC run
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