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Measurement of the inclusive cross-sections of single top-quark and top-antiquark $t$-channel production in $pp$ collisions at $\sqrt{s}$ = 13 TeV with the ATLAS detector

The ATLAS collaboration
JHEP 04 (2017) 086, 2017.

Abstract (data abstract)
- CERN-LHC. A measurement of the t-channel single-top-quark and single-top-antiquark production cross-sections in the lepton+jets channel is presented, using 3.2 fb^-1 of proton-proton collision data at a centre-of-mass energy of 13 TeV, recorded with the ATLAS detector at the LHC in 2015. Events are selected by requiring one charged lepton (electron or muon), missing transverse momentum, and two jets with high transverse momentum, exactly one of which is required to be $b$-tagged. Using a binned maximum-likelihood fit to the discriminant distribution of a neural network, the cross-sections are determined. The paper is available as prepint at arXiv: "https://arxiv.org/abs/1609.03920". A web page with links to all figures and tables is available here: "http://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/TOPQ-2015-15/".

  • Table 1

    Table 1 on page 9 of the paper


    Predicted and observed event yields for the signal region. The quoted uncertainties include uncertainties in the theoretical cross-sections, in the...

  • Table 2

    Table 3 on page 15 of the paper


    Estimated scale factors, $\hat{\beta}$, and number of events, $\hat{\nu}=\hat{\beta}\cdot\nu$, for the $\ell^+$ and $\ell^-$ channel from the minimisation of the...

  • Table 3

    Equations on pages 15, 18 and 19 of the paper


    Measured total cross sections of single top-quark and single top-antiquark production and their ratio $R_t$. In addition, the sum of...

  • Table 4

    Table 4 on page 17 of the paper


    List of systematic uncertainties contributing to the total uncertainty in the measured values of $\sigma(tq)$, $\sigma(\bar{t}q)$, and $R_t= \sigma(tq)/\sigma(\bar{t}q)$. The...

  • Table 5

    Table 5 on page 19 of the paper


    Measured values of the cross-sections $\sigma(tq)$, $\sigma(\bar{t}q)$, $\sigma(tq+\bar{t} q)$, and $R_t$ for different simulated top-quark masses. The quoted uncertainties are...

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