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Search for a heavy resonance decaying to a top quark and a vector-like top quark in the lepton + jets final state in pp collisions at √ s=13TeV

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dc.contributor.authorSirunyan, A. M.
dc.contributor.authorTumasyan, A.
dc.contributor.authorAdam, W.
dc.contributor.authorAmbrogi, F.
dc.contributor.authorChadeeva, M.
dc.contributor.authorParygin, P.
dc.contributor.authorPhilippov, D.
dc.contributor.authorPopova, E.
dc.contributor.authorPolikarpov, S.
dc.contributor.authorRusinov, V.
dc.contributor.authorMatveev, V.
dc.contributor.authorDremin, I.
dc.contributor.authorЧадеева, Марина Валентиновна
dc.contributor.authorПоликарпов, Сергей Михайлович
dc.contributor.authorРусинов, Владимир Юрьевич
dc.contributor.authorМатвеев, Виктор Анатольевич
dc.date.accessioned2024-11-20T09:56:37Z
dc.date.available2024-11-20T09:56:37Z
dc.date.issued2019
dc.description.abstract© 2019, CERN for the benefit of the CMS Collaboration. A search is presented for a heavy spin-1 resonance Z ′ decaying to a top quark and a vector-like top quark partner T in the lepton + jets final state. The search is performed using a data set of p p collisions at a centre-of-mass energy of 13TeV corresponding to an integrated luminosity of 35.9fb-1 as recorded by the CMS experiment at the CERN LHC in the year 2016. The analysis is optimised for final states arising from the T decay modes to a top quark and a Higgs or Z boson (T → H t , Z t). The event selection makes use of resolved and merged top quark decay products, as well as decays of boosted Higgs bosons and Z and W bosons using jet substructure techniques. No significant deviation from the standard model background expectation is observed. Exclusion limits on the product of the cross section and branching fraction for Z ′ → t T , T → H t , Z t , W b are presented for various combinations of the Z ′ resonance mass and the vector-like T quark mass. These results represent the most stringent limits to date for the decay mode Z ′ → t T → t H t. In a benchmark model with extra dimensions, invoking a heavy spin-1 resonance G ∗ , masses of the G ∗ between 1.5 and 2.3TeV and between 2.0 and 2.4TeV are excluded for T masses of 1.2 and 1.5TeV, respectively.
dc.identifier.citationSearch for a heavy resonance decaying to a top quark and a vector-like top quark in the lepton + jets final state in pp collisions at √ s=13TeV / Sirunyan, A.M. [et al.] // European Physical Journal C. - 2019. - 79. - № 3. - 10.1140/epjc/s10052-019-6688-5
dc.identifier.doi10.1140/epjc/s10052-019-6688-5
dc.identifier.urihttps://www.doi.org/10.1140/epjc/s10052-019-6688-5
dc.identifier.urihttps://www.scopus.com/record/display.uri?eid=2-s2.0-85063199426&origin=resultslist
dc.identifier.urihttp://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=Alerting&SrcApp=Alerting&DestApp=WOS_CPL&DestLinkType=FullRecord&UT=WOS:000460674700002
dc.identifier.urihttps://openrepository.mephi.ru/handle/123456789/16693
dc.relation.ispartofEuropean Physical Journal C
dc.titleSearch for a heavy resonance decaying to a top quark and a vector-like top quark in the lepton + jets final state in pp collisions at √ s=13TeV
dc.typeArticle
dspace.entity.typePublication
oaire.citation.issue3
oaire.citation.volume79
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