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  • PhysRevLett.107.272002

    Rights statement: Published by the American Physical Society under the terms of the Creative Commons Attribution 3.0 License. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. © 2011 CERN, for the ATLAS Collaboration

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

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Article number272002
<mark>Journal publication date</mark>29/12/2011
<mark>Journal</mark>Physical review letters
Issue number27
Volume107
Number of pages19
Publication StatusPublished
<mark>Original language</mark>English

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/M¯¯¯¯Pl=0.1 is excluded at 95% C.L. for masses below 1.63 TeV.

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Published by the American Physical Society under the terms of the Creative Commons Attribution 3.0 License. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. © 2011 CERN, for the ATLAS Collaboration