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Title
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Measurement of inclusive and differential cross sections for single top quark production in association with a W boson in proton-proton collisions at √s=13TeV
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Author
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Institution/Organisation
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CMS Collaboration
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Abstract
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| Measurements of the inclusive and normalised differential cross sections are presented for the production of single top quarks in association with a W boson in proton-proton collisions at a centre-of-mass energy of 13TeV. The data used were recorded with the CMS detector at the LHC during 2016-2018, and correspond to an integrated luminosity of 138 fb(-1). Events containing one electron and one muon in the final state are analysed. For the inclusive measurement, a multivariate discriminant, exploiting the kinematic properties of the events is used to separate the signal from the dominant t (t) over bar background. A cross section of 79.2 +/- 0.9 (stat)(-8.0)(+7.7) (syst) +/- 1.2 (lumi) pb is obtained, consistent with the predictions of the standard model. For the differential measurements, a fiducial region is defined according to the detector acceptance, and the requirement of exactly one jet coming from the fragmentation of a bottom quark. The resulting distributions are unfolded to particle level and agree with the predictions at next-to-leading order in perturbative quantum chromodynamics. |
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Language
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English
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Source (journal)
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Journal of high energy physics. - Bristol
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Publication
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Bristol
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2023
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ISSN
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1126-6708
1029-8479
[online]
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Volume/pages
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7
(2023)
, p. 1-49
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Article Reference
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46
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ISI
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001062421000001
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Full text (Publisher's DOI)
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Full text (open access)
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