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dc.contributor.authorKhachatryan, V.
dc.contributor.authorIşıldak, Bora
dc.date.accessioned2017-04-20T12:09:09Z
dc.date.available2017-04-20T12:09:09Z
dc.date.issued2017
dc.identifier.issn1873-2445
dc.identifier.urihttp://hdl.handle.net/10679/4941
dc.identifier.urihttp://www.sciencedirect.com/science/article/pii/S0370269317300977
dc.description.abstractAn inclusive search is performed for supersymmetry in final states containing jets and an apparent imbalance in transverse momentum, View the MathML source, due to the production of unobserved weakly interacting particles in pp collisions at a centre-of-mass energy of 8 TeV. The data, recorded with the CMS detector at the CERN LHC, correspond to an integrated luminosity of 18.5 fb−1. The dimensionless kinematic variable αT is used to discriminate between events with genuine View the MathML source associated with unobserved particles and spurious values of View the MathML source arising from jet energy mismeasurements. No excess of event yields above the expected standard model backgrounds is observed. The results are interpreted in terms of constraints on the parameter space of several simplified models of supersymmetry that assume the pair production of top squarks. The search provides sensitivity to a broad range of top squark (View the MathML source) decay modes, including the two-body decay View the MathML source, where c is a charm quark and View the MathML source is the lightest neutralino, as well as the four-body decay View the MathML source, where b is a bottom quark and f and View the MathML source are fermions produced in the decay of an intermediate off-shell W boson. These modes dominate in scenarios in which the top squark and lightest neutralino are nearly degenerate in mass. For these modes, top squarks with masses as large as 260 and 225 GeV are excluded, respectively, for the two- and four-body decays.
dc.description.sponsorshipBMWF ; FWF ; FNRS ; FWO ; CNPq ; CAPES ; FAPERJ ; FAPESP ; MES ; CERN ; CAS ; MoST ; NSFC ; COLCIENCIAS ; MSES ; RPF ; MoER ; ERDF ; Academy of Finland ; MEC ; HIP ; CEA ; CNRS ; BMBF ; DFG ; HGF ; GSRT ; OTKA ; NKTH ; DAE ; DST ; IPM ; SFI ; INFN ; NRF ; WCU ; LAS ; CINVESTAV ; CONACYT ; UASLP-FAI ; MSI ; PAEC ; MSHE ; NSC ; FCT ; JINR ; MON ; RosAtom ; RAS ; RFBR ; MESTD ; SEIDI ; CPAN ; Swiss Funding Agencies ; NSC ; ThEPCenter ; IPST ; STAR ; NSTDA ; TUBITAK ; TAEK ; NASU ; STFC ; DOE ; NSF ; European Union ; the Leventis Foundation ; the A. P. Sloan Foundation ; the Alexander von Humboldt Foundation ; the Belgian Federal Science Policy Office ; the Fonds pour la Formation a` la Recherche dans l’Industrie et dans l’Agriculture (FRIA-Belgium); the Agentschap voor Innovatie door Wetenschap en Technologie (IWTBelgium); the Ministry of Education, Youth and Sports (MEYS) of Czech Republic; the Council of Science and Industrial Research, India; the Compagnia di San Paolo (Torino); the HOMING PLUS program of Foundation for Polish Science, cofinanced by EU, Regional Development Fund; and the Thalis and Aristeia programs cofinanced by EU-ESF and the Greek NSRF ; Qatar National Research Fund ; the Rachadapisek Sompot Fund for Postdoctoral Fellowship ; Chulalongkorn University ; the Chulalongkorn Academic into Its 2nd Century Project Advancement Project ; and the Welch Foundation.
dc.language.isoengen_US
dc.publisherElsevieren_US
dc.relationinfo:turkey/grantAgreement/TUBITAK
dc.relation.ispartofPhysics Letters Ben_US
dc.rightsopenAccess
dc.titleSearch for top squark pair production in compressed-mass-spectrum scenarios in proton–proton collisions at s√=8 TeV using the αT variableen_US
dc.typeArticleen_US
dc.peerreviewedyes
dc.publicationstatuspublisheden_US
dc.contributor.departmentÖzyeğin University
dc.contributor.authorID124605
dc.contributor.ozuauthorIşıldak, Bora
dc.creatorThe CMS Collaboration
dc.identifier.volume767
dc.identifier.startpage403
dc.identifier.endpage430
dc.identifier.wosWOS:000397861700064
dc.identifier.doi10.1016/j.physletb.2017.02.007
dc.subject.keywordsCMS
dc.subject.keywordsPhysics
dc.subject.keywordsSUSY
dc.subject.keywordsJets
dc.subject.keywordsMissing transverse momentum
dc.subject.keywordsAlphaT
dc.contributor.authorMale1


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