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dc.contributor.authorKhachatryan, V.
dc.contributor.authorSirunyan, A.M.
dc.contributor.authorBaarmand, M.M.
dc.contributor.authorBhopatkar, Vallary
dc.contributor.authorColafranceschi, Stefano
dc.contributor.authorHohlmann, Marcus
dc.contributor.authorKalakhety, H.
dc.contributor.authorNoonan, D.
dc.contributor.authorRoy, Tuhin S.
dc.contributor.authorYumiceva, Francisco X.
dc.date.accessioned2017-10-17T15:33:16Z
dc.date.available2017-10-17T15:33:16Z
dc.date.issued2016-10-12
dc.identifier.citationKhachatryan, V., Sirunyan, A.M., et alen_US
dc.identifier.urihttp://hdl.handle.net/11141/2041
dc.descriptioncross section, top quarks (tt)en_US
dc.description.abstractThe cross section for pair production of top quarks (tt) with high transverse momenta is measured in pp collisions, collected with the CMS detector at the LHC with 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 σtt=0.499±0.035(stat+syst)±0.095(theo)±0.013(lumi) pb for top quark pT>400 GeV. The parton-level measurement is σtt=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. © 2016 CERN, for the CMS Collaboration.en_US
dc.language.isoen_USen_US
dc.rights© 2016 American Physical Society (APS)en_US
dc.rights.urihttps://journals.aps.org/authors/transfer-of-copyright-agreementen_US
dc.titleMeasurement of the integrated and differential t̅t production cross sections for high-pt top quarks in pp collisions at √s =8 TeVen_US
dc.typeArticleen_US
dc.identifier.doi10.1103/PhysRevD.94.072002


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