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

Collaboration, TATLAS; (2011) Search for high mass dilepton resonances in pp collisions at sqrt{s}=7 TeV with the ATLAS experiment. Physics Letters B , 700 (3-4) pp. 163-180. 10.1016/j.physletb.2011.04.044. Green open access

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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.

Type: Article
Title: Search for high mass dilepton resonances in pp collisions at sqrt{s}=7 TeV with the ATLAS experiment
Open access status: An open access version is available from UCL Discovery
DOI: 10.1016/j.physletb.2011.04.044
Publisher version: http://dx.doi.org/10.1016/j.physletb.2011.04.044
Language: English
Additional information: Copyright © 2011 CERN. Published by Elsevier B.V. Open access under CC BY-NC-ND license.
Keywords: Grand unified theory, Narrow resonance, New gauge boson, Z, Dilepton, Mass spectrum
UCL classification: UCL
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Computer Science
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy
URI: https://discovery-pp.ucl.ac.uk/id/eprint/10065727
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