Search for Supersymmetry in Events Containing a Same-Flavour Opposite-Sign Dilepton Pair, Jets, and Large Missing Transverse Momentum in √s̅ = 8 TeV pp Collisions with the ATLAS Detector

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dc.contributor.VIAF250674117 (Izen, JM)en_US
dc.contributor.VIAF250674117 (Izen, JM)
dc.contributor.authorAad, G.en_US
dc.contributor.authorAbbott, B.en_US
dc.contributor.authorAbdallah, J.en_US
dc.contributor.authorAbdinov, O.en_US
dc.contributor.authorAben, R.en_US
dc.contributor.authorAbolins, M.en_US
dc.contributor.authorAbouZeid, O. S.en_US
dc.contributor.authorIzen, Joseph M.en_US
dc.contributor.authorLeyton, Michaelen_US
dc.contributor.authorMeirose, Bernharden_US
dc.contributor.authorNamasivayam, Harisankaren_US
dc.contributor.authorReeves, Kendallen_US
dc.contributor.authorATLAS Collaborationen_US
dc.contributor.utdAuthorIzen, Joseph M.en_US
dc.contributor.utdAuthorLeyton, Michaelen_US
dc.contributor.utdAuthorMeirose, Bernharden_US
dc.contributor.utdAuthorNamasivayam, Harisankaren_US
dc.contributor.utdAuthorReeves, Kendallen_US
dc.date.accessioned2016-12-16T22:52:19Z
dc.date.available2016-12-16T22:52:19Z
dc.date.created2015-07en_US
dc.date.issued2015-07en_US
dc.descriptionIncludes an erratumen_US
dc.description.abstractTwo searches for supersymmetric particles in final states containing a same-flavour opposite-sign lepton pair, jets and large missing transverse momentum are presented. The proton-proton collision data used in these searches were collected at a centre-of-mass energy √s̅ = 8 TeV by the ATLAS detector at the Large Hadron Collider and corresponds to an integrated luminosity of 20.3 fb⁻¹. Two leptonic production mechanisms are considered: decays of squarks and gluinos with Z bosons in the final state, resulting in a peak in the dilepton invariant mass distribution around the Z-boson mass; and decays of neutralinos (e.g.. χ{^~⁰₂} → ℓ⁺ℓ⁻ χ(^~⁰₁}, resulting in a kinematic endpoint in the dilepton invariant mass distribution. For the former, an excess of events above the expected Standard Model background is observed, with a significance of three standard deviations. In the latter case, the data are well-described by the expected Standard Model background. The results from each channel are interpreted in the context of several supersymmetric models involving the production of squarks and gluinos.en_US
dc.identifier.bibliographicCitationAad, G., B. Abbott, J. Abdallah, O. Abdinov, et al. 2015. "Search for supersymmetry in events containing a same-flavour opposite-sign dilepton pair, jets, and large missing transverse momentum in √s̅ = 8 TeV pp collisions with the ATLAS detector." European Physical Journal C 75(7), doi: 10.1140/epjc/s10052-015-3518-2en_US
dc.identifier.issn1434-6044en_US
dc.identifier.issue7en_US
dc.identifier.urihttp://hdl.handle.net/10735.1/5165
dc.identifier.volume75en_US
dc.language.isoenen_US
dc.publisherSpringeren_US
dc.relation.urihttp://dx.doi.org/10.1140/epjc/s10052-015-3518-2
dc.rightsCC BY 4.0 (Attribution)en_US
dc.rights©2015 CERN, for the ATLAS Collaborationen_US
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en_US
dc.sourceEuropean Physical Journal C
dc.subjectLeptons (Nuclear physics)en_US
dc.subjectFORTRAN (Computer program language)en_US
dc.subjectSupersymmetryen_US
dc.subjectJets (Nuclear physics)en_US
dc.subjectTransverse momentumen_US
dc.subjectProton-proton interactionsen_US
dc.subjectLuminescenceen_US
dc.subjectZ bosonsen_US
dc.subjectStandard Modelen_US
dc.titleSearch for Supersymmetry in Events Containing a Same-Flavour Opposite-Sign Dilepton Pair, Jets, and Large Missing Transverse Momentum in √s̅ = 8 TeV pp Collisions with the ATLAS Detectoren_US
dc.type.genreArticleen_US

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Izen, Joseph M.