Measurement of the integrated and differential t(t)over-bar production cross sections for high-p(T) top quarks in pp collisions at root s=8 TeV

dc.WoS.categoriesAstronomy & Astrophysics; Physics, Particles & Fieldsen_US
dc.authorid0000-0002-9007-8260en_US
dc.contributor.authorYetkin, Elif Aslı
dc.date.accessioned2020-11-06T12:04:04Z
dc.date.available2020-11-06T12:04:04Z
dc.date.issued2016-10-12
dc.departmentFakülteler, Mühendislik ve Doğa Bilimleri Fakültesi, Enerji Sistemleri Mühendisliği Bölümüen_US
dc.description.abstractThe cross section for pair production of top quarks (t (t) over bar) with high transverse momenta is measured in pp collisions, collected with the CMS detector at the LHC with root s = 8 TeV in data corresponding to an integrated luminosity of 19.7 fb(-1). The measurement is performed using lepton + jets events, where one top quark decays semileptonically, while the second top quark decays to a hadronic final state. The hadronic decay is reconstructed as a single, large-radius jet, and identified as a top quark candidate using jet substructure techniques. The integrated cross section and the differential cross sections as a function of top quark pT and rapidity are measured at particle level within a fiducial region related to the detector-level requirements and at parton level. The particle-level integrated cross section is found to be sigma t (t) over bar = 0.499 + 0.035 (stat + syst) +/- 0.095 (theo) + 0.013 (lumi) pb for top quark p(T) > 400 GeV. The parton-level measurement is sigma t (t) over bar = 1.44 +/- 0.10 (stat + syst) + 0.29 (theo) + 0.04 (lumi) pb. The integrated and differential cross section results are compared to predictions from several event generators.en_US
dc.fullTextLevelFull Texten_US
dc.identifier.doi10.1103/PhysRevD.94.072002
dc.identifier.issn2470-0029
dc.identifier.issn2470-0010
dc.identifier.scopus2-s2.0-84991813006en_US
dc.identifier.urihttps://hdl.handle.net/11411/2505
dc.identifier.urihttps://doi.org/10.1103/PhysRevD.94.072002
dc.identifier.wosWOS:000385632500001en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.issue7en_US
dc.language.isoenen_US
dc.nationalInternationalen_US
dc.numberofauthors100+en_US
dc.publisherAmer. Physical Soc.en_US
dc.relation.ispartofPhysical Review Den_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectPARTON DISTRIBUTIONSen_US
dc.titleMeasurement of the integrated and differential t(t)over-bar production cross sections for high-p(T) top quarks in pp collisions at root s=8 TeV
dc.typeArticle
dc.volume94en_US

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