Compact Muon Solenoid
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| CMS-PAS-TOP-21-010 | ||
| Measurement of inclusive and differential cross sections for single top quark production in association with a W boson at $\sqrt{s}= $ 13 TeV | ||
| CMS Collaboration | ||
| May 2022 | ||
| Abstract: 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 13 TeV. The data were recorded with the CMS detector at the LHC and correspond to an integrated luminosity of 138 fb$^{-1}$. Events containing one muon and one electron 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 $\mathrm{t\bar{t}}$ background. A measured cross section of 79.2 $\pm$ 0.8 (stat) $^{+7.0}_{-7.2}$ (syst) $\pm$ 1.1 (lumi) pb is obtained, consistent with 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 b-tagged jet. The resulting distributions are unfolded to particle level and compared with predictions at next-to-leading order in perturbative quantum chromodynamics, with which they agree within uncertainties. | ||
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CDS record (PDF) ;
CADI line (restricted) ;
These preliminary results are superseded in this paper, Submitted to JHEP. The superseded preliminary plots can be found here. |
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Compact Muon Solenoid LHC, CERN |
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