#### ${{\mathit W}}{{\mathit t}}$ Production Cross Section in ${{\mathit p}}{{\mathit p}}$ Collisions at $\sqrt {s }$ = 8 TeV

VALUE (pb) DOCUMENT ID TECN  COMMENT
• • We do not use the following data for averages, fits, limits, etc. • •
$26$ $\pm7$ 1
 2021 AT
ATLS ${{\mathit \ell}}$ +${}\geq{}$3j
$23.1$ $\pm3.6$ 2
 2019 R
LHC ATLAS + CMS combined
$23.0$ $\pm1.3$ ${}^{+3.2}_{-3.5}$ $\pm1.1$ 3
 2016 B
ATLS 2${{\mathit \ell}}$ +$\not E_T+1{{\mathit b}}$
$23.4$ $\pm5.4$ 4
 2014 AC
CMS ${{\mathit t}}$ +${{\mathit W}}$ channel, 2${{\mathit \ell}}$ +$\not E_T+1{{\mathit b}}$
 1 AAD 2021AT based on 20.2 fb${}^{-1}$ of data. In this single lepton channel, only single neutrino is emitted, so that both ${{\mathit W}}$ and ${{\mathit t}}$ can be reconstructed. A neural network is trained to separate signal from background. The measured cross section agrees with the NLO+NNLL SM prediction of $22.4$ $\pm0.6$(scale)$\pm1.4$(PDF) pb.
 2 AABOUD 2019R based on 12.2 to 20.3 fb${}^{-1}$ of data from ATLAS and CMS at 8 TeV.
 3 AAD 2016B based on 20.3 fb${}^{-1}$ of data. The result gives $\vert \mathit V_{\mathit tb}\vert$ = $1.01$ $\pm0.10$ and $\vert \mathit V_{\mathit tb}\vert$ $>$ 0.80 (95$\%$ CL) without assuming unitarity of the CKM matrix. The results assume ${\mathit m}_{{{\mathit t}}}$ = 172.5 GeV for the acceptance.
 4 Based on 12.2 fb${}^{-1}$ of data. Events with two oppositely charged leptons, large $\not E_T$ and a ${{\mathit b}}$ -tagged jet are selected, and a multivariate analysis is used to separate the signal from the backgrounds. The result is consistent with the SM prediction of $22.2$ $\pm0.6$(scale)$\pm1.4$(PDF) pb at approximate NNLO.
References:
EPJ C81 720 Measurement of single top-quark production in association with a W boson in the single-lepton channel at $\sqrt{s} = 8\,\text {TeV}$ with the ATLAS detector
JHEP 1905 088 Combinations of single-top-quark production cross-section measurements and |f$_{LV}$V$_{tb}$| determinations at $\sqrt{s}$ = 7 and 8 TeV with the ATLAS and CMS experiments
JHEP 1601 064 Measurement of the Production Cross-Section of a Single Top Quark in Association with a ${{\mathit W}}$ Boson at 8 TeV with the ATLAS Experiment
PRL 112 231802 Observation of the Associated Production of a Single Top Quark and a ${{\mathit W}}$ Boson in ${{\mathit p}}{{\mathit p}}$ Collisions at $\sqrt {s }$ = 8 TeV