Measurement Of The Cross Section For T(T)Over-Bar Production With Additional Jets And B Jets İn Pp Collisions At Root S=13tev

dc.authorid249433en_US
dc.authorid291820en_US
dc.contributor.authorBilki, Burak
dc.contributor.authorGüler, Emine Gürpınar
dc.contributor.author., ve diğer.
dc.date.accessioned2020-10-13T12:47:55Z
dc.date.available2020-10-13T12:47:55Z
dc.date.issued2020
dc.departmentİstanbul Beykent Üniversitesien_US
dc.description.abstractMeasurements of the cross section for the production of top quark pairs in association with a pair of jets from bottom quarks (sigma(t (t) over barb (b) over bar)) and in association with a pair of jets from quarks of any flavor or gluons (sigma(t (t) over bar jj)) and their ratio are presented. The data were collected in proton-proton collisions at a center-of-mass energy of 13 TeV by the CMS experiment at the LHC in 2016 and correspond to an integrated luminosity of 35.9 fb(-1). The measurements are performed in a fiducial phase space and extrapolated to the full phase space, separately for the dilepton and lepton+jets channels, where lepton corresponds to either an electron or a muon. The results of the measurements in the fiducial phase space for the dilepton and lepton+jets channels, respectively, are sigma(t (t) over bar jj) = 2.36 +/- 0.02 (stat)+/- 0.20 (syst) pb and 31.0 +/- 0.2 (stat)+/- 2.9 (syst) pb, and for the cross section ratio 0.017 +/- 0.001 (stat)+/- 0.001 (syst) and 0.020 +/- 0.001 (stat)+/- 0.001 (syst). The values of sigma(t (t) over barb (b) over bar) are determined from the product of the sigma(t (t) over bar jj) and the cross section ratio, obtaining, respectively, 0.040 +/- 0.002 (stat)+/- 0.005 (syst) pb and 0.62 +/- 0.03 (stat)+/- 0.07 (syst) pb. These measurements are the most precise to date and are consistent, within the uncertainties, with the standard model expectations obtained using a matrix element calculation at next-to-leading order in quantum chromodynamics matched to a parton shower.en_US
dc.identifier.citationJournal Of Hıgh Energy Physıcs, 7 (125), 2020en_US
dc.identifier.doi10.1007/JHEP07(2020)125
dc.identifier.issn1029-8479
dc.identifier.scopus2-s2.0-85088526760en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.urihttps://doi.org/10.1007/JHEP07(2020)125
dc.identifier.wosWOS:000551953500001en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherThe CMS Collaborationen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.subjectHadron-Hadron scattering (experiments)en_US
dc.subjectHadron-Hadron scattering (experiments)en_US
dc.subjectJetsen_US
dc.subjectJetsen_US
dc.subjectTop physicsen_US
dc.subjectTop physicsen_US
dc.titleMeasurement Of The Cross Section For T(T)Over-Bar Production With Additional Jets And B Jets İn Pp Collisions At Root S=13teven_US
dc.typeArticleen_US

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