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

This paper describes searches for the pair production of first or second generation scalar leptoquarks using 35  pb-1 of proton-proton collision data recorded by the ATLAS detector at [sqrt]s=7  TeV. Leptoquarks are searched in events with two oppositely-charged muons or electrons and at least two j...

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Main Author: Taylor, Frank E.
Other Authors: Massachusetts Institute of Technology. Department of Physics
Format: Article
Language:en_US
Published: American Physical Society 2011
Online Access:http://hdl.handle.net/1721.1/65155
https://orcid.org/0000-0002-7586-7253
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author Taylor, Frank E.
author2 Massachusetts Institute of Technology. Department of Physics
author_facet Massachusetts Institute of Technology. Department of Physics
Taylor, Frank E.
author_sort Taylor, Frank E.
collection MIT
description This paper describes searches for the pair production of first or second generation scalar leptoquarks using 35  pb-1 of proton-proton collision data recorded by the ATLAS detector at [sqrt]s=7  TeV. 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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spelling mit-1721.1/651552022-09-28T01:03:38Z Search for pair production of first or second generation leptoquarks in proton-proton collisions at [sqrt]s=7  TeV using the ATLAS detector at the LHC Search for pair production of first or second generation leptoquarks in proton-proton collisions at √s=7  TeV using the ATLAS detector at the LHC Taylor, Frank E. Massachusetts Institute of Technology. Department of Physics Taylor, Frank E. Taylor, Frank E. This paper describes searches for the pair production of first or second generation scalar leptoquarks using 35  pb-1 of proton-proton collision data recorded by the ATLAS detector at [sqrt]s=7  TeV. 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). National Science Foundation (U.S.) United States. Dept. of Energy 2011-08-15T19:58:15Z 2011-08-15T19:58:15Z 2011-06 2011-04 Article http://purl.org/eprint/type/JournalArticle 1550-7998 1550-2368 http://hdl.handle.net/1721.1/65155 G. Aad et al. (ATLAS Collaboration) "Search for pair production of first or second generation leptoquarks in proton-proton collisions at √s=7  TeV using the ATLAS detector at the LHC." Physics Review D, 83.11 : 112006 (2011) © 2011 CERN, for the ATLAS Collaboration. https://orcid.org/0000-0002-7586-7253 en_US http://dx.doi.org/10.1103/PhysRevD.83.112006 Physical Review D Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf American Physical Society APS
spellingShingle Taylor, Frank E.
Search for pair production of first or second generation leptoquarks in proton-proton collisions at [sqrt]s=7  TeV using the ATLAS detector at the LHC
title Search for pair production of first or second generation leptoquarks in proton-proton collisions at [sqrt]s=7  TeV using the ATLAS detector at the LHC
title_full Search for pair production of first or second generation leptoquarks in proton-proton collisions at [sqrt]s=7  TeV using the ATLAS detector at the LHC
title_fullStr Search for pair production of first or second generation leptoquarks in proton-proton collisions at [sqrt]s=7  TeV using the ATLAS detector at the LHC
title_full_unstemmed Search for pair production of first or second generation leptoquarks in proton-proton collisions at [sqrt]s=7  TeV using the ATLAS detector at the LHC
title_short Search for pair production of first or second generation leptoquarks in proton-proton collisions at [sqrt]s=7  TeV using the ATLAS detector at the LHC
title_sort search for pair production of first or second generation leptoquarks in proton proton collisions at sqrt s 7 tev using the atlas detector at the lhc
url http://hdl.handle.net/1721.1/65155
https://orcid.org/0000-0002-7586-7253
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