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Measurement of the top quark pair production cross section in dilepton final states containing one τ lepton in pp collisions at √s = 13 TeV

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dc.contributor.authorSirunyan, A. M.
dc.contributor.authorTumasyan, A.
dc.contributor.authorAdam, W.
dc.contributor.authorAmbrogi, F.
dc.contributor.authorMatveev, V.
dc.contributor.authorChadeeva, M.
dc.contributor.authorParygin, P.
dc.contributor.authorPhilippov, D.
dc.contributor.authorPopova, E.
dc.contributor.authorRusinov, V.
dc.contributor.authorМатвеев, Виктор Анатольевич
dc.contributor.authorЧадеева, Марина Валентиновна
dc.contributor.authorРусинов, Владимир Юрьевич
dc.date.accessioned2024-11-25T16:46:50Z
dc.date.available2024-11-25T16:46:50Z
dc.date.issued2020
dc.description.abstract© 2020, The Author(s).The cross section of top quark pair production is measured in the tt¯→(ℓνℓ)(τhντ)bb¯ final state, where τh refers to the hadronic decays of the τ lepton, and ℓ is either an electron or a muon. The data sample corresponds to an integrated luminosity of 35.9 fb−1 collected in proton-proton collisions at s = 13 TeV with the CMS detector. The measured cross section is σt t ¯ = 781 ± 7 (stat) ± 62 (syst) ± 20 (lumi) pb, and the ratio of the partial width Γ(t → τντb) to the total decay width of the top quark is measured to be 0.1050 ± 0.0009 (stat) ± 0.0071 (syst). This is the first measurement of the t t ¯ production cross section in proton-proton collisions at s = 13 TeV that explicitly includes τ leptons. The ratio of the cross sections in the ℓτh and ℓℓ final states yields a value Rℓτh/ll = 0.973 ± 0.009 (stat) ± 0.066 (syst), consistent with lepton universality. [Figure not available: see fulltext.]
dc.identifier.citationMeasurement of the top quark pair production cross section in dilepton final states containing one τ lepton in pp collisions at √s = 13 TeV / Sirunyan, A.M. [et al.] // Journal of High Energy Physics. - 2020. - 2020. - № 2. - 10.1007/JHEP02(2020)191
dc.identifier.doi10.1007/JHEP02(2020)191
dc.identifier.urihttps://www.doi.org/10.1007/JHEP02(2020)191
dc.identifier.urihttps://www.scopus.com/record/display.uri?eid=2-s2.0-85080991624&origin=resultslist
dc.identifier.urihttp://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=Alerting&SrcApp=Alerting&DestApp=WOS_CPL&DestLinkType=FullRecord&UT=WOS:000520519600001
dc.identifier.urihttps://openrepository.mephi.ru/handle/123456789/20361
dc.relation.ispartofJournal of High Energy Physics
dc.titleMeasurement of the top quark pair production cross section in dilepton final states containing one τ lepton in pp collisions at √s = 13 TeV
dc.typeArticle
dspace.entity.typePublication
oaire.citation.issue2
oaire.citation.volume2020
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