{"@context":"http://schema.org","@id":"https://doi.org/10.17182/hepdata.137656.v1","@reverse":{"isBasedOn":[{"@type":"ScholarlyArticle","identifier":{"@type":"PropertyValue","propertyID":"URL","value":"https://inspirehep.net/literature/2613270"}},{"@id":"https://doi.org/10.1140/epjc/s10052-023-11790-7","@type":"JournalArticle"}]},"@type":"Dataset","additionalType":"Collection","author":{"@type":"Organization","name":"ATLAS Collaboration"},"creator":{"@type":"Organization","name":"ATLAS Collaboration"},"datePublished":"2023","description":"A search for pair-produced vector-like quarks using events with exactly one lepton ($e$ or $\\mu$), at least four jets including at least one $b$-tagged jet, and large missing transverse momentum is presented. Data from proton-proton collisions at a centre-of-mass energy of $\\sqrt{s} = 13$ TeV, recorded by the ATLAS detector at the LHC from 2015 to 2018 and corresponding to an integrated luminosity of 139 fb$^{-1}$, are analysed. Vector-like partners $T$ and $B$ of the top and bottom quarks are considered, as is a vector-like $X$ with charge +5/3, assuming their decay into a $W$, $Z$, or Higgs boson and a third-generation quark. No significant deviations from the Standard Model expectation are observed. Upper limits on the production cross-section of $T$ and $B$ quark pairs as a function of their mass are derived for various decay branching ratio scenarios. The strongest lower limits on the masses are 1.59 TeV assuming mass-degenerate VLQs and branching ratios corresponding to the weak-isospin doublet model, and 1.47 TeV (1.46 TeV) for exclusive $T \\rightarrow Zt$ ($B/X \\rightarrow Wt$) decays. In addition, lower limits on the $T$ and $B$ quark masses are derived for all possible branching ratios.","hasPart":[{"@id":"https://doi.org/10.17182/hepdata.137656.v1/t1","@type":"Dataset","description":"Expected and observed upper limits at 95% CL on the cross section of vector-like quark pair production for $T\\bar{T}$ and...","name":"$TT \\rightarrow ZtZt$ cross-section limits"},{"@id":"https://doi.org/10.17182/hepdata.137656.v1/t2","@type":"Dataset","description":"Expected and observed upper limits at 95% CL on the cross section of vector-like quark pair production for $B\\bar{B}$ and...","name":"$BB \\rightarrow WtWt$ cross-section limits"},{"@id":"https://doi.org/10.17182/hepdata.137656.v1/t3","@type":"Dataset","description":"Expected and observed upper limits at 95% CL on the cross section of vector-like quark pair production for $T\\bar{T}$ in...","name":"$TT$ cross-section limits for the singlet model"},{"@id":"https://doi.org/10.17182/hepdata.137656.v1/t4","@type":"Dataset","description":"Expected and observed upper limits at 95% CL on the cross section of vector-like quark pair production for $B\\bar{B}$ in...","name":"$BB$ cross-section limits for the singlet model"},{"@id":"https://doi.org/10.17182/hepdata.137656.v1/t5","@type":"Dataset","description":"Expected and observed upper limits at 95% CL on the cross section of vector-like quark pair production for $T\\bar{T}$ in...","name":"$TT$ cross-section limits for the doublet model"},{"@id":"https://doi.org/10.17182/hepdata.137656.v1/t6","@type":"Dataset","description":"Expected and observed upper limits at 95% CL on the cross section of vector-like quark pair production, considereing both $T\\bar{T}$...","name":"$QQ$ cross-section limits for the doublet model"},{"@id":"https://doi.org/10.17182/hepdata.137656.v1/t7","@type":"Dataset","description":"Expected 95% CL lower limits on the vector-like top quark mass as a function of the branching ratios into $Wb$...","name":"Expected lower limits on the VLT mass"},{"@id":"https://doi.org/10.17182/hepdata.137656.v1/t8","@type":"Dataset","description":"Observed 95% CL lower limits on the vector-like top quark mass as a function of the branching ratios into $Wb$...","name":"Observed lower limits on the VLT mass"},{"@id":"https://doi.org/10.17182/hepdata.137656.v1/t9","@type":"Dataset","description":"Expected 95% CL lower limits on the vector-like bottom quark mass as a function of the branching ratios into $Hb$...","name":"Expected lower limits on the VLB mass"},{"@id":"https://doi.org/10.17182/hepdata.137656.v1/t10","@type":"Dataset","description":"Observed 95% CL lower limits on the vector-like top quark mass as a function of the branching ratios into $Hb$...","name":"Observed lower limits on the VLB mass"}],"identifier":[{"@type":"PropertyValue","propertyID":"HEPDataRecord","value":"https://www.hepdata.net/record/ins2613270?version=1"},{"@type":"PropertyValue","propertyID":"HEPDataRecordAlt","value":"https://www.hepdata.net/record/137656"}],"inLanguage":"en","name":"Search for pair-produced vector-like top and bottom partners in events with large missing transverse momentum in pp collisions with the ATLAS detector","provider":{"@type":"Organization","name":"HEPData"},"publisher":{"@type":"Organization","name":"HEPData"},"url":"https://www.hepdata.net/record/ins2613270?version=1","version":1}