Search for Heavy Particles Decaying into Top-Quark Pairs Using Lepton-Plus-Jets Events in Proton–Proton Collisions at √s=13 TeV with the ATLAS Detector

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dc.contributor.VIAF250674117 (Izen, JM)
dc.contributor.authorAaboud, M.
dc.contributor.authorAad, G.
dc.contributor.authorAbbott, B.
dc.contributor.authorAbdinov, O.
dc.contributor.authorAbeloos, B.
dc.contributor.authorAbidi, S. H.
dc.contributor.authorAbouZeid, O. S.
dc.contributor.authorIzen, Joseph M.
dc.contributor.authorMeirose, Bernhard
dc.contributor.authorReeves, Kendall
dc.contributor.authorATLAS Collaboration
dc.contributor.utdAuthorIzen, Joseph M.
dc.contributor.utdAuthorMeirose, Bernhard
dc.contributor.utdAuthorReeves, Kendall
dc.date.accessioned2019-08-30T16:33:49Z
dc.date.available2019-08-30T16:33:49Z
dc.date.created2018-07-09
dc.description.abstractA search for new heavy particles that decay into top-quark pairs is performed using data collected from proton–proton collisions at a centre-of-mass energy of 13 TeV by the ATLAS detector at the Large Hadron Collider. The integrated luminosity of the data sample is 36.1 fb⁻¹. Events consistent with top-quark pair production are selected by requiring a single isolated charged lepton, missing transverse momentum and jet activity compatible with a hadronic top-quark decay. Jets identified as likely to contain b-hadrons are required to reduce the background from other Standard Model processes. The invariant mass spectrum of the candidate top-quark pairs is examined for local excesses above the background expectation. No significant deviations from the Standard Model predictions are found. Exclusion limits are set on the production cross-section times branching ratio for hypothetical Z′ bosons, Kaluza–Kein gluons and Kaluza–Klein gravitons that decay into top-quark pairs.
dc.description.departmentSchool of Natural Sciences and Mathematics
dc.identifier.bibliographicCitationAaboud, M., G. Aad, B. Abbott, O. Abdinov, et al. 2018. "Search for heavy particles decaying into top-quark pairs using lepton-plus-jets events in proton–proton collisions at √s=13 TeV with the ATLAS detector." European Physical Journal C 78(7): art. 565, doi:10.1140/epjc/s10052-018-5995-6
dc.identifier.issn1434-6044
dc.identifier.urihttps://hdl.handle.net/10735.1/6802
dc.identifier.volume78
dc.language.isoen
dc.publisherSpringer New York LLC
dc.relation.urihttp://dx.doi.org/10.1140/epjc/s10052-018-5995-6
dc.rightsCC BY 4.0 (Attribution)
dc.rights©2018 CERN, for the ATLAS Collaboration
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.source.journalEuropean Physical Journal C
dc.subjectQuarks
dc.subjectProton-proton interactions
dc.subjectLarge Hadron Collider (France and Switzerland)
dc.subjectHadrons—Decay
dc.subjectTransverse momentum
dc.subjectJets (Nuclear physics)
dc.subjectStandard model (Nuclear physics)
dc.subjectZ bosons
dc.subjectKaluza-Klein theories
dc.titleSearch for Heavy Particles Decaying into Top-Quark Pairs Using Lepton-Plus-Jets Events in Proton–Proton Collisions at √s=13 TeV with the ATLAS Detector
dc.type.genrearticle

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