{"@context":"http://schema.org","@id":"https://doi.org/10.17182/hepdata.150693.v1","@reverse":{"isBasedOn":[{"@type":"ScholarlyArticle","identifier":{"@type":"PropertyValue","propertyID":"URL","value":"https://inspirehep.net/literature/2764820"}},{"@id":"https://doi.org/10.1007/JHEP05(2024)305","@type":"JournalArticle"}]},"@type":"Dataset","additionalType":"Collection","author":{"@type":"Organization","name":"ATLAS Collaboration"},"creator":{"@type":"Organization","name":"ATLAS Collaboration"},"datePublished":"2024","description":"- CERN-LHC. The production of single top quarks and top antiquarks via the $t$-channel exchange of a\nvirtual $W$ boson are measured in proton--proton collisions at a centre-of-mass energy\nof 13 TeV at the LHC. The full Run 2 dataset recorded with the ATLAS detector in the years 2015--2018 is used.\nThe total cross-sections are determined to be $\\sigma(tq)=137^{+8}_{-8}\\,\\mathrm{pb}$\nand $\\sigma(\\bar{t}q)=84^{+6}_{-5}\\,\\mathrm{pb}$ for top-quark and top-antiquark production,\nrespectively.\nThe combined cross-section is found to be $\\sigma(tq+\\bar{t}q)=221^{+13}_{-13}\\,\\mathrm{pb}$ and the\ncross-section ratio is $R_{t}=\\sigma(tq)/\\sigma(\\bar{t}q)=1.636^{+0.036}_{-0.034}$.\nThe measured cross-sections are in good agreement with predictions made at\nnext-to-next-to-leading order in quantum chromodynamics.\nThe predicted value of $R_{t}$ using different sets of parton\ndistribution functions is compared to the measured value, demonstrating the potential to further \nconstrain the functions when using this result in global fits.\nThe measurements of $\\sigma(tq)$, $\\sigma(\\bar{t}q)$, and $\\sigma(tq+\\bar{t}q)$ are interpreted in an effective field\ntheory approach, setting limits at the 95\\% confidence level on the strength of a four-quark operator\nand an operator coupling the third quark generation to the Higgs boson doublet:\n$-0.37 < C_{qQ}^{(1,3)}/\\Lambda^2 < 0.06$ and\n$-0.87 < C_{\\phi Q}^{(3)}/\\Lambda^2 < 1.42$.\nThe measured total cross-section is further used to derive the constraint $|V_{tb}|>0.95$ at the 95%\nconfidence level.\nIn a more general approach, pairs of CKM matrix elements involving top quarks are simultaneously\nconstrained, leading to confidence contours in the corresponding two-dimensional\nparameter spaces.","hasPart":[{"@id":"https://doi.org/10.17182/hepdata.150693.v1/t1","@type":"Dataset","description":"The 17 variables used for the training of the NN ordered by their discriminating power. The jet that is not...","name":"Table 2"},{"@id":"https://doi.org/10.17182/hepdata.150693.v1/t2","@type":"Dataset","description":"The impact of different groups of systematic uncertainties on the \\(\\sigma(tq)\\) , \\(\\sigma(\\bar t q)\\), \\(\\sigma(tq + \\bar t q)\\)...","name":"Table 3"},{"@id":"https://doi.org/10.17182/hepdata.150693.v1/t3","@type":"Dataset","description":"The impact of the eight most important systematic uncertainties on the \\(\\sigma(tq)\\) , \\(\\sigma(\\bar t q)\\) and \\(\\sigma(tq + \\bar...","name":"Table 4"},{"@id":"https://doi.org/10.17182/hepdata.150693.v1/t4","@type":"Dataset","description":"The impact of the eight most important systematic uncertainties on \\(R_t\\), in %.","name":"Table 5"},{"@id":"https://doi.org/10.17182/hepdata.150693.v1/t5","@type":"Dataset","description":"The post-fit yields in the two SRs. All uncertainties applied in the analysis are included.","name":"Table 6"},{"@id":"https://doi.org/10.17182/hepdata.150693.v1/t6","@type":"Dataset","description":"Limits on EFT parameters and Vtb extracted from the analysis. The upper and lower limits correspond to 95% CL.","name":"EFT limits and Vtb"},{"@id":"https://doi.org/10.17182/hepdata.150693.v1/t7","@type":"Dataset","description":"Results of the main analysis.","name":"Results"},{"@id":"https://doi.org/10.17182/hepdata.150693.v1/t8","@type":"Dataset","description":"Pre-fit distribution of the NN discriminant \\(D_{\\text{nn}}\\) in SR plus.","name":"SR plus prefit"},{"@id":"https://doi.org/10.17182/hepdata.150693.v1/t9","@type":"Dataset","description":"Post-fit distribution of the NN discriminant \\(D_{\\text{nn}}\\) in SR plus.","name":"SR plus postfit"},{"@id":"https://doi.org/10.17182/hepdata.150693.v1/t10","@type":"Dataset","description":"Post-fit distribution of the \\(\\Delta\\phi(\\vec{p}_{T}^{miss},\\mu)\\) variable in the muon-plus CR.","name":"muon CR plus postfit"},{"@id":"https://doi.org/10.17182/hepdata.150693.v1/t11","@type":"Dataset","description":"Pre-fit distribution of the NN discriminant \\(D_{\\text{nn}}\\) in SR minus.","name":"SR minus prefit"},{"@id":"https://doi.org/10.17182/hepdata.150693.v1/t12","@type":"Dataset","description":"Post-fit distribution of the NN discriminant \\(D_{\\text{nn}}\\) in SR minus.","name":"SR minus postfit"},{"@id":"https://doi.org/10.17182/hepdata.150693.v1/t13","@type":"Dataset","description":"Post-fit distribution of the \\(\\Delta\\phi(\\vec{p}_{T}^{miss},\\mu)\\) variable in the muon-minus CR.","name":"muon CR minus postfit"},{"@id":"https://doi.org/10.17182/hepdata.150693.v1/t14","@type":"Dataset","description":"Pre-fit distribution of the invariant mass of the untagged jet and the b-tagged jet, \\(m(jb)\\), in SR plus.","name":"\\(m(jb)\\) prefit"},{"@id":"https://doi.org/10.17182/hepdata.150693.v1/t15","@type":"Dataset","description":"Pre-fit distribution of the absolute value of the pseudorapidity of the untagged jet, \\(|\\eta(j)|\\), in SR plus.","name":"\\(|\\eta(j)|\\) prefit"},{"@id":"https://doi.org/10.17182/hepdata.150693.v1/t16","@type":"Dataset","description":"Pre-fit distribution of the absolute value of the difference in \\(p_{\\text{T}}\\) between the reconstructed W boson and the jet pair,...","name":"\\(|\\Delta p_{\\text{T}}(W, jb)|\\) prefit"},{"@id":"https://doi.org/10.17182/hepdata.150693.v1/t17","@type":"Dataset","description":"Pre-fit distribution of the difference in azimuth angle between the reconstructed W boson and the jet pair, \\(|\\Delta\\phi(W, jb)|\\), in...","name":"\\(|\\Delta\\phi(W, jb)|\\) prefit"},{"@id":"https://doi.org/10.17182/hepdata.150693.v1/t18","@type":"Dataset","description":"Pre-fit distribution of the invariant mass of the reconstructed top quark, \\(m(t)\\), in SR plus.","name":"\\(m(t)\\) prefit"},{"@id":"https://doi.org/10.17182/hepdata.150693.v1/t19","@type":"Dataset","description":"Pre-fit distribution of the absolute value of the difference in pseudorapidity between the charged lepton and the untagged jet, \\(|\\Delta\\eta(\\ell...","name":"\\(|\\Delta\\eta(\\ell ,j)|\\) prefit"},{"@id":"https://doi.org/10.17182/hepdata.150693.v1/t20","@type":"Dataset","description":"Pre-fit distribution of the angular distance of the charged lepton and the untagged jet, \\(\\Delta R(\\ell ,j)\\), in SR plus.","name":"\\(\\Delta R(\\ell ,j)\\) prefit"},{"@id":"https://doi.org/10.17182/hepdata.150693.v1/t21","@type":"Dataset","description":"Pre-fit distribution of the absolute value of the difference in pseudorapidity between the b-tagged jet and the charged lepton, \\(|\\Delta\\eta(b,\\ell...","name":"\\(|\\Delta\\eta(b,\\ell )|\\) prefit"}],"identifier":[{"@type":"PropertyValue","propertyID":"HEPDataRecord","value":"https://www.hepdata.net/record/ins2764820?version=1"},{"@type":"PropertyValue","propertyID":"HEPDataRecordAlt","value":"https://www.hepdata.net/record/150693"}],"inLanguage":"en","name":"Measurement of $t$-channel production of single top quarks and antiquarks in $pp$ collisions at 13 TeV using the full ATLAS Run 2 data sample","provider":{"@type":"Organization","name":"HEPData"},"publisher":{"@type":"Organization","name":"HEPData"},"url":"https://www.hepdata.net/record/ins2764820?version=1","version":1}