Measurements of Inclusive and Differential Fiducial Cross-Sections of tt̅ Production with Additional Heavy-Flavour Jets in Proton-Proton Collisions at √s=13 TeV with the ATLAS Detector

dc.contributor.VIAF250674117 (Izen, JM)
dc.contributor.authorAaboud, M.
dc.contributor.authorAad, G.
dc.contributor.authorAbbott, B.
dc.contributor.authorAbdinov, O.
dc.contributor.authorAbeloos, B.
dc.contributor.authorAbhayasinghe, D. K.
dc.contributor.authorAbidi, S. H.
dc.contributor.authorIzen, Joseph M.
dc.contributor.authorMeirose, Bernhard
dc.contributor.authorReeves, Kendall
dc.contributor.authorATLAS Collaboration
dc.contributor.utdAuthorIzen, Joseph M.
dc.contributor.utdAuthorMeirose, Bernhard
dc.contributor.utdAuthorReeves, Kendall
dc.date.accessioned2019-10-31T15:20:26Z
dc.date.available2019-10-31T15:20:26Z
dc.date.created2019-04-04
dc.description.abstractThis paper presents measurements of tt¯ production in association with additional b-jets in pp collisions at the LHC at a centre-of-mass energy of 13 TeV. The data were recorded with the ATLAS detector and correspond to an integrated luminosity of 36.1 fb −1 . Fiducial cross-section measurements are performed in the dilepton and lepton-plus-jets tt¯ decay channels. Results are presented at particle level in the form of inclusive cross-sections of tt¯ final states with three and four b-jets as well as differential cross-sections as a function of global event properties and properties of b-jet pairs. The measured inclusive fiducial cross-sections generally exceed the tt¯ bb¯ predictions from various next-to-leading-order matrix element calculations matched to a parton shower but are compatible within the total uncertainties. The experimental uncertainties are smaller than the uncertainties in the predictions. Comparisons of state-of-the-art theoretical predictions with the differential measurements are shown and good agreement with data is found for most of them. ©2019 The Author(s).
dc.description.departmentSchool of Natural Sciences and Mathematics
dc.identifier.bibliographicCitationAaboud, M., G. Aad, B. Abbott, O. Abdinov, et al. 2019. "Measurements of inclusive and differential fiducial cross-sections of tt̅ production with additional heavy-flavour jets in proton-proton collisions at √s = 13 TeV with the ATLAS detector." Journal of High Energy Physics 2019(4): art. 046, doi: 10.1007/JHEP04(2019)046
dc.identifier.issn1126-6708
dc.identifier.issue4
dc.identifier.urihttps://hdl.handle.net/10735.1/7062
dc.identifier.volume2019
dc.language.isoen
dc.publisherSpringer Verlag
dc.relation.urihttps://dx.doi.org/10.1007/JHEP04(2019)046
dc.rightsCC BY 4.0 (Attribution)
dc.rights©2019 CERN, for the ATLAS Collaboration
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.source.journalJournal of High Energy Physics
dc.subjectHadrons--Scattering
dc.subjectQuarks
dc.subjectJets (Nuclear physics)
dc.subjectLarge Hadron Collider (France and Switzerland)
dc.subjectLeptons (Nuclear physics)
dc.titleMeasurements of Inclusive and Differential Fiducial Cross-Sections of tt̅ Production with Additional Heavy-Flavour Jets in Proton-Proton Collisions at √s=13 TeV with the ATLAS Detector
dc.type.genrearticle

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