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dc.contributor.authorATLAS Collaboration
dc.contributor.authorSultansoy, Saleh F.
dc.date.accessioned2019-12-30T05:54:10Z
dc.date.available2019-12-30T05:54:10Z
dc.date.issued2019
dc.identifier.citationATLAS collaboration. (2019). Search for heavy particles decaying into a top-quark pair in the fully hadronic final state in p p collisions at s= 13 TeV with the ATLAS detector. Physical Review D, 99(9), 092004.en_US
dc.identifier.issn2470-0010
dc.identifier.urihttps://journals.aps.org/prd/abstract/10.1103/PhysRevD.99.092004
dc.identifier.urihttp://hdl.handle.net/20.500.11851/3134
dc.description.abstractA search for new particles decaying into a pair of top quarks is performed using proton-proton collision data recorded with the ATLAS detector at the Large Hadron Collider at a center-of-mass energy of s=13 TeV corresponding to an integrated luminosity of 36.1 fb-1. Events consistent with top-quark pair production and the fully hadronic decay mode of the top quarks are selected by requiring multiple high transverse momentum jets including those containing b-hadrons. Two analysis techniques, exploiting dedicated top-quark pair reconstruction in different kinematic regimes, are used to optimize the search sensitivity to new hypothetical particles over a wide mass range. The invariant mass distribution of the two reconstructed top-quark candidates is examined for resonant production of new particles with various spins and decay widths. No significant deviation from the Standard Model prediction is observed and limits are set on the production cross-section times branching fraction for new hypothetical Z? bosons, dark-matter mediators, Kaluza-Klein gravitons and Kaluza-Klein gluons. By comparing with the predicted production cross sections, the Z? boson in the topcolor-assisted-technicolor model is excluded for masses up to 3.1-3.6 TeV, the dark-matter mediators in a simplified framework are excluded in the mass ranges from 0.8 to 0.9 TeV and from 2.0 to 2.2 TeV, and the Kaluza-Klein gluon is excluded for masses up to 3.4 TeV, depending on the decay widths of the particles. © 2019 CERN, for the ATLAS Collaboration.en_US
dc.language.isoengen_US
dc.publisherAmerican Physical Societyen_US
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subjectCollisionsen_US
dc.subjectjetsen_US
dc.subjectproton–proton collisionsen_US
dc.titleSearch for heavy particles decaying into a top-quark pair in the fully hadronic final state in pp collisions at s =13 TeV with the ATLAS detectoren_US
dc.typearticleen_US
dc.relation.journalPhysical Review Den_US
dc.contributor.departmentTOBB ETU, Faculty of Engineering, Department of Material Science & Nanotechnology Engineeringen_US
dc.contributor.departmentTOBB ETÜ, Mühendislik Fakültesi, Malzeme Bilimi ve Nanoteknoloji Mühendisliği Bölümütr_TR
dc.identifier.volume9
dc.identifier.issue9
dc.contributor.orcidhttps://orcid.org/0000-0003-2340-748X
dc.identifier.wosWOS:000468219700001
dc.identifier.scopus2-s2.0-85071718240
dc.contributor.tobbetuauthorSultansoy, Saleh F.
dc.identifier.doi10.1103/PhysRevD.99.092004
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıtr_TR


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