# Search for dilepton resonances in pp collisions at sqrt(s) = 7 TeV with the ATLAS detector

7 Laboratoire de Physique Corpusculaire
LPC - Laboratoire de Physique Corpusculaire - Clermont-Ferrand
10 APC - Neutrinos
LPNHE - Laboratoire de Physique Nucléaire et de Hautes Énergies, APC (UMR_7164) - AstroParticule et Cosmologie
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 sqrt(s) = 7 TeV at the LHC and correspond to a total integrated luminosity of 1.08/fb (1.21/fb) in the ee (mumu) 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 ratio 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.
Document type :
Journal articles

http://hal.in2p3.fr/in2p3-00614067
Contributor : Emmanuelle Vernay <>
Submitted on : Tuesday, August 9, 2011 - 8:58:49 AM
Last modification on : Wednesday, August 4, 2021 - 3:40:02 PM

### Citation

G. Aad, S. Albrand, M.L. Andrieux, B. Clement, J. Collot, et al.. Search for dilepton resonances in pp collisions at sqrt(s) = 7 TeV with the ATLAS detector. Physical Review Letters, American Physical Society, 2011, 107, pp.272002. ⟨10.1103/PhysRevLett.107.272002⟩. ⟨in2p3-00614067⟩

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