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dc.contributor.authorTumasyan, Armenpt_BR
dc.contributor.authorSilveira, Gustavo Gil dapt_BR
dc.contributor.authorBernardes, César Augustopt_BR
dc.contributor.authorCMS Collaborationpt_BR
dc.date.accessioned2022-04-07T04:49:16Zpt_BR
dc.date.issued2021pt_BR
dc.identifier.issn0556-2821pt_BR
dc.identifier.urihttp://hdl.handle.net/10183/236797pt_BR
dc.description.abstractMeasurements of differential and double-differential cross sections of top-quark pair (t¯t) production are presented in the lepton þ jets channels with a single electron or muon and jets in the final state. The analysis combines for the first time signatures of top quarks with low transverse momentum pT, where the top-quark decay products can be identified as separated jets and isolated leptons, and with high pT, where the decay products are collimated and overlap. The measurements are based on proton-proton collision data at ffiffi s p ¼ 13 TeV collected by the CMS experiment at the LHC, corresponding to an integrated luminosity of 137 fb−1. The cross sections are presented at the parton and particle levels, where the latter minimizes extrapolations based on theoretical assumptions. Most of the measured differential cross sections are well described by standard model predictions with the exception of some double-differential distributions. The inclusive t¯t production cross section is measured to be σt¯t ¼ 791 25 pb, which constitutes the most precise measurement in the lepton þ jets channel to date.en
dc.format.mimetypeapplication/pdfpt_BR
dc.language.isoengpt_BR
dc.relation.ispartofPhysical Review. D, Particles and fields. Woodbury. Vol. 104, no. 9 (Nov. 2021), 092013, 93 p.pt_BR
dc.rightsOpen Accessen
dc.subjectAceleradores de partículaspt_BR
dc.subjectColisões proton-protonpt_BR
dc.titleMeasurement of differential t¯t production cross sections in the full kinematic range using lepton + jets events from proton-proton collisions at √s=13  TeVpt_BR
dc.typeArtigo de periódicopt_BR
dc.identifier.nrb001137179pt_BR
dc.type.originEstrangeiropt_BR


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