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Search for Dilepton Resonances in pp Collisions at √s=7  TeV with the ATLAS Detector

ContributorsATLAS Collaboration
Published inPhysical review letters, vol. 107, no. 27, 272002
Publication date2011
Abstract

This Letter reports on a search for narrow high-mass resonances decaying into dilepton final states. The data were recorded by the ATLAS experiment in pp collisions at s√=7  TeV at the Large Hadron Collider and correspond to a total integrated luminosity of 1.08 (1.21)  fb−1 in the e+e− (μ+μ−) channel. No statistically significant excess above the standard model expectation is observed and upper limits are set at the 95% C.L. on the cross section times branching fraction of Z′ resonances and Randall-Sundrum gravitons decaying into dileptons as a function of the resonance mass. A lower mass limit of 1.83 TeV on the sequential standard model Z′ boson is set. A Randall-Sundrum graviton with coupling k/MPl=0.1 is excluded at 95% C.L. for masses below 1.63 TeV.

Citation (ISO format)
ATLAS Collaboration. Search for Dilepton Resonances in <em>pp</em> Collisions at √s=7  TeV with the ATLAS Detector. In: Physical review letters, 2011, vol. 107, n° 27, p. 272002. doi: 10.1103/PhysRevLett.107.272002
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ISSN of the journal0031-9007
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