Measurement of the Inclusive Cross-Sections of Single Top-Quark and Top-Antiquark T-Channel Production in pp Collisions at √S=13 TeV with the ATLAS Detector

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Measurement of the Inclusive Cross-Sections of Single Top-Quark and Top-Antiquark T-Channel Production in pp Collisions at √S=13 TeV with the ATLAS Detector

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Title: Measurement of the Inclusive Cross-Sections of Single Top-Quark and Top-Antiquark T-Channel Production in pp Collisions at √S=13 TeV with the ATLAS Detector
Author(s):
Aaboud, M.;
Aad, G.;
Abbott, B.;
Abdallah, J.;
Abdinov, O.;
Abeloos, B.;
Aben, R.;
Izen, Joseph M.;
Leyton, Michael;
Meirose, Bernhard;
Reeves, Kendall;
ATLAS Collaboration
Date Created: 2017-04-14
Item Type: article
Keywords: Show Keywords
Abstract: 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 to be σ(tq) = 156 ± 5 (stat.) ± 27 (syst.) ± 3 (lumi.) pb for single top-quark production and σ(t̅ q) = 91 ± 4 (stat.) ± 18 (syst.) ± 2 (lumi.) pb for single top-antiquark production, assuming a top-quark mass of 172.5 GeV. The cross-section ratio is measured to be Rt=σ(tq)/σ(t̅q)=1.72 ± 0.09 (stat.) ± 0.18 (syst.). All results are in agreement with Standard Model predictions.
Publisher: Springer Verlag
ISSN: 1126-6708
Source: Journal of High Energy Physics
Link to Related Resource: http://dx.doi.org/10.1007/JHEP04(2017)086
Persistent Link: http://hdl.handle.net/10735.1/6052
Bibliographic Citation: Aaboud, M., G. Aad, B. Abbott, et al. 2017. "Measurement of the inclusive cross-sections of single top-quark and top-antiquark t-channel production in pp collisions at √s=13 TeV with the ATLAS detector." Journal of High Energy Physics 2017(4), doi:10.1007/JHEP04(2017)086
Terms of Use: CC BY 4.0 (Attribution)
©2017 CERN, for the ATLAS Collaboration

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CC BY 4.0 (Attribution) Except where otherwise noted, this item's license is described as CC BY 4.0 (Attribution)