• Open Access

Search for pair production of first or second generation leptoquarks in proton-proton collisions at s=7TeV using the ATLAS detector at the LHC

G. Aad et al. (ATLAS Collaboration)
Phys. Rev. D 83, 112006 – Published 15 June 2011

Abstract

This paper describes searches for the pair production of first or second generation scalar leptoquarks using 35pb1 of proton-proton collision data recorded by the ATLAS detector at s=7TeV. Leptoquarks are searched in events with two oppositely-charged muons or electrons and at least two jets, and in events with one muon or electron, missing transverse momentum and at least two jets. After event selection, the observed yields are consistent with the predicted backgrounds. Leptoquark production is excluded at the 95% CL for masses MLQ<376 (319) GeV and MLQ<422 (362) GeV for first and second generation scalar leptoquarks, respectively, when assuming the branching fraction of a leptoquark to a charged lepton is equal to 1.0 (0.5).

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  • Received 25 April 2011

DOI:https://doi.org/10.1103/PhysRevD.83.112006

This article is available 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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Vol. 83, Iss. 11 — 1 June 2011

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