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Title
Japanese: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 
English: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
Japanese: M. Aaboud, 陣内 修, 久世 正弘, 山口 洋平, et al..  
English: M. Aaboud, Osamu Jinnouchi, Masahiro.Kuze, Youhei Yamaguchi, et al..  
Language English 
Journal/Book name
Japanese:Journal of High Energy Physics 
English:Journal of High Energy Physics 
Volume, Number, Page Vol. 2017    No. 4    pp. "086"
Published date Apr. 2017 
Publisher
Japanese: 
English: 
Conference name
Japanese: 
English: 
Conference site
Japanese: 
English: 
Official URL https://www.scopus.com/inward/record.uri?eid=2-s2.0-85018460675&doi=10.1007%2fJHEP04%282017%29086&partnerID=40&md5=1f7968b0c1d95f3ec45ceab37878cade
 
DOI https://doi.org/10.1007/JHEP04(2017)086
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 $ sigma left(overline{t}qright)=91pm 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 $ {R}_t=sigma (tq)/sigma left(overline{t}qright)=1.72pm 0.09 $ (stat.) ± 0.18 (syst.). All results are in agreement with Standard Model

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