Measurement of the tt¯ production cross-section in the lepton+jets channel at s=13 TeV with the ATLAS experiment

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dc.contributor.authorAad G.
dc.contributor.authorAbbott B.
dc.contributor.authorAbbott D.C.
dc.contributor.authorAbed Abud A.
dc.contributor.authorAbeling K.
dc.contributor.authorAbhayasinghe D.K.
dc.contributor.authorAbidi S.H.
dc.contributor.authorAbouZeid O.S.
dc.contributor.authorAbraham N.L.
dc.contributor.authorAbramowicz H.
dc.contributor.authorAbreu H.
dc.contributor.authorAbulaiti Y.
dc.date.accessioned2021-10-25T16:39:28Z
dc.date.available2021-10-25T16:39:28Z
dc.date.issued2020-11
dc.descriptionIndexación Scopuses
dc.description.abstractThe top anti-top quark production cross-section is measured in the lepton+jets channel using proton–proton collision data at a centre-of-mass energy of s=13 TeV collected with the ATLAS detector at the LHC. The dataset corresponds to an integrated luminosity of 139 fb−1. Events with exactly one charged lepton and four or more jets in the final state, with at least one jet containing b-hadrons, are used to determine the tt¯ production cross-section through a profile-likelihood fit. The inclusive cross-section is measured to be σinc=830±0.4(stat.)±36(syst.)±14(lumi.)pb with a relative uncertainty of 4.6%. The result is consistent with theoretical calculations at next-to-next-to-leading order in perturbative QCD. The fiducial tt¯ cross-section within the experimental acceptance is also measured. © 2020 The Author(s)es
dc.description.urihttps://www-sciencedirect-com.recursosbiblioteca.unab.cl/science/article/pii/S0370269320306006?via%3Dihub
dc.identifier.citationPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, Volume 81010 November 2020 Article number 135797es
dc.identifier.doi10.1016/j.physletb.2020.135797
dc.identifier.issn03702693
dc.identifier.urihttp://repositorio.unab.cl/xmlui/handle/ria/20624
dc.language.isoenes
dc.publisherElsevier B.V.es
dc.subjectTop Quarkes
dc.subjectPartonses
dc.subjectHiggs Bosonses
dc.titleMeasurement of the tt¯ production cross-section in the lepton+jets channel at s=13 TeV with the ATLAS experimentes
dc.typeArtículoes
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