Please use this identifier to cite or link to this item: http://hdl.handle.net/2440/102343
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dc.contributor.authorAad, G.en
dc.contributor.authorATLAS Collaborationen
dc.date.issued2014en
dc.identifier.citationJournal of High Energy Physics, 2014; 2014(9):015-1-015-50en
dc.identifier.issn1126-6708en
dc.identifier.issn1029-8479en
dc.identifier.urihttp://hdl.handle.net/2440/102343-
dc.description.abstractThe results of a search for direct pair production of the scalar partner to the top quark using an integrated luminosity of 20.1 fb−1 of proton-proton collision data at s√ = 8 TeV recorded with the ATLAS detector at the LHC are reported. The top squark is assumed to decay via t¯ →tχ¯¯¯01 or t¯ →bχ¯¯¯±1 →bW(∗)χ¯¯¯01, where χ¯¯¯01 (χ¯¯¯±1) denotes the lightest neutralino (chargino) in supersymmetric models. The search targets a fully-hadronic final state in events with four or more jets and large missing transverse momentum. No significant excess over the Standard Model background prediction is observed, and exclusion limits are reported in terms of the top squark and neutralino masses and as a function of the branching fraction of t¯ →tχ¯¯¯01. For a branching fraction of 100%, top squark masses in the range 270–645 GeV are excluded for χ¯¯¯01 masses below 30 GeV. For a branching fraction of 50% to either t¯ →tχ¯¯¯01 or t¯ →bχ¯¯¯±1, and assuming the χ¯¯¯±1 mass to be twice the χ¯¯¯01 mass, top squark masses in the range 250–550 GeV are excluded for χ¯¯¯01 masses below 60 GeV.en
dc.description.statementofresponsibilityG. Aad … P. Jackson … L. Lee … a. Petridis … N. Soni … M. White .. The ATLAS Collaborationen
dc.language.isoenen
dc.publisherSpringeren
dc.rightsOpen Access, Copyright CERN, for the benefit of the ATLAS Collaboration. Article funded by SCOAP³en
dc.subjectHadron-hadron scattering; supersymmetry; top squark; proton-proton scatteringen
dc.titleSearch for direct pair production of the top squark in all-hadronic final states in proton-proton collisions at √s = 8 TeV with the ATLAS detectoren
dc.title.alternativeSearch for direct pair production of the top squark in all-hadronic final states in proton-proton collisions at root s = 8 TeV with the ATLAS detectoren
dc.typeJournal articleen
dc.identifier.rmid0030013019en
dc.identifier.doi10.1007/JHEP09(2014)015en
dc.identifier.pubid128964-
pubs.library.collectionChemistry and Physics publicationsen
pubs.library.teamDS14en
pubs.verification-statusVerifieden
pubs.publication-statusPublisheden
Appears in Collections:Chemistry and Physics publications

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