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Observation of tW production in the single-lepton channel in pp collisions at $\sqrt{s}$ = 13 TeV

The collaboration
JHEP 11 (2021) 111, 2021.

Abstract (data abstract)
CERN-LHC. Measurement of the tW production cross section in the single-lepton final state using proton-proton collisions at centre-of-mass energy of 13 TeV with 36 fb^-1 of data collected in 2016. Events are selected that contain single muon or electrons, and then subdivided into signal and control regions based on jet topology. Signal events must contain exactly 3 jets. a ttbar enriched region contains exactly 4 jets. A W+jets and QCD enriched region contains exactly 2 jets. In all three regions exactly one jet must pass b-tagging requirements. A BDT is trained to separate the signal tW from the dominant ttbar background, and a profile likelihood fit is used to extract the tW cross section.

• #### Cross section

Data from Page 10 of preprint

10.17182/hepdata.102957.v1/t1

The observed and theoretical cross section. In the observed, the first uncertainty is statistical, the second uncertianty is the systematic....

• #### Systematic impacts

Data from Page 11 of preprint

10.17182/hepdata.102957.v1/t2

The systematic sources considered in the analysis and their relative contribution to the observed uncertainty. The uncertainties are divided by...