# Search for high mass dilepton resonances in pp collisions at sqrt{s}=7 TeV with the ATLAS experiment

5 Laboratoire de Physique Corpusculaire
LPC - Laboratoire de Physique Corpusculaire - Clermont-Ferrand
9 APC - Neutrinos
LPNHE - Laboratoire de Physique Nucléaire et de Hautes Énergies, APC (UMR_7164) - AstroParticule et Cosmologie
Abstract : This article presents a search for high mass e e or mu mu resonances in pp collisions at sqrt{s} = 7 TeV at the LHC. The data were recorded by the ATLAS experiment during 2010 and correspond to a total integrated luminosity of ~40/pb. No statistically significant excess above the Standard Model expectation is observed in the search region of dilepton invariant mass above 110 GeV. Upper limits at the 95% confidence level are set on the cross section times branching ratio of Z' resonances decaying to dielectrons and dimuons as a function of the resonance mass. A lower mass limit of 1.048 TeV on the Sequential Standard Model Z' boson is derived, as well as mass limits on Z* and E(6)-motivated Z' models.
Document type :
Journal articles

http://hal.in2p3.fr/in2p3-00582733
Contributor : Emmanuelle Vernay <>
Submitted on : Monday, April 4, 2011 - 9:17:30 AM
Last modification on : Tuesday, December 1, 2020 - 2:32:13 PM

### Citation

G. Aad, S. Albrand, M.L. Andrieux, B. Clement, J. Collot, et al.. Search for high mass dilepton resonances in pp collisions at sqrt{s}=7 TeV with the ATLAS experiment. Physics Letters B, Elsevier, 2011, 700, pp.163-180. ⟨10.1016/j.physletb.2011.04.044⟩. ⟨in2p3-00582733⟩

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