{"@context":"http://schema.org","@id":"https://doi.org/10.17182/hepdata.150507.v1","@reverse":{"isBasedOn":[{"@type":"ScholarlyArticle","identifier":{"@type":"PropertyValue","propertyID":"URL","value":"https://inspirehep.net/literature/2673386"}},{"@id":"https://doi.org/10.1140/epjc/s10052-024-12975-4","@type":"JournalArticle"}]},"@type":"Dataset","additionalType":"Collection","author":{"@type":"Organization","name":"ATLAS Collaboration"},"creator":{"@type":"Organization","name":"ATLAS Collaboration"},"datePublished":"2024","description":"A search for leptoquark pair production decaying into $te^-\\bar{t}e^+$ or $t\\mu^-\\bar{t}\\mu^+$ in final states with multiple leptons is presented. The search is based on a dataset of $pp$ collisions at $\\sqrt{s}$=13 TeV recorded with the ATLAS detector during Run 2 of the Large Hadron Collider, corresponding to an integrated luminosity of 139 fb$^{-1}$. Events are selected with two or more light leptons (electron or muon) and at least two jets out of which at least one jet is identified as coming from a $b$-hadron. Four signal regions, with the requirement of at least three light leptons, are considered based on the number of leptons of a given flavour. The main background processes are estimated using dedicated control regions in a simultaneous fit with the signal regions to data. No excess above the Standard Model background prediction is observed and 95% confidence level limits on the production cross section times branching ratio are derived as a function of the leptoquark mass. Under the assumption of exclusive decays into $te^-$($t\\mu^-$), the corresponding lower limit on the scalar mixed-generation leptoquark mass $m_{LQ_{\\mathrm{mix}}^{\\mathrm{d}}}$ is at 1.58 (1.59) TeV and on the vector leptoquark mass $m_{\\tilde{U}_1}$ at 1.67 (1.67) TeV in the minimal coupling scenario and at 1.95 (1.95) TeV in the Yang-Mills scenario.","hasPart":[{"@id":"https://doi.org/10.17182/hepdata.150507.v1/t1","@type":"Dataset","description":"Selection efficiency times acceptance summed over two signal regions for the scalar leptoquark signals as a function of $m_{\\mathrm{LQ}_{mix}^{\\mathrm{d}}}$, assuming...","name":"Scalar LQ signal acceptance times efficiency"},{"@id":"https://doi.org/10.17182/hepdata.150507.v1/t2","@type":"Dataset","description":"Selection efficiency times acceptance summed over two signal regions for the vector leptoquark signals as a function of $m_{\\tilde{U}_{1}}$, assuming...","name":"Vector LQ signal acceptance times efficiency"},{"@id":"https://doi.org/10.17182/hepdata.150507.v1/t3","@type":"Dataset","description":"Summary of the observed and expected 95% CL upper limits on the cross section for $\\mathrm{LQ}_{\\mathrm{mix}}^{\\mathrm{d}}$ pair production as a...","name":"Cross section upper limit at 95% CL for $tete$"},{"@id":"https://doi.org/10.17182/hepdata.150507.v1/t4","@type":"Dataset","description":"Summary of the observed and expected 95% CL upper limits on the cross section for $\\mathrm{LQ}_{\\mathrm{mix}}^{\\mathrm{d}}$ pair production as a...","name":"Cross section upper limit at 95% CL for $t\\mu t\\mu$"},{"@id":"https://doi.org/10.17182/hepdata.150507.v1/t5","@type":"Dataset","description":"Summary of observed and predicted yields in the four signal region categories. The background prediction is shown after the combined...","name":"Summary of observed and expected event yields (postfit) in SRs"},{"@id":"https://doi.org/10.17182/hepdata.150507.v1/t6","@type":"Dataset","description":"Summary of the data, background and signal yields in the four signal region categories. The background prediction is shown before...","name":"Summary of observed and expected event yields (prefit) in SRs"},{"@id":"https://doi.org/10.17182/hepdata.150507.v1/t7","@type":"Dataset","description":"Summary of the data and background yields in the seven control region categories. The background prediction is shown before the...","name":"Summary of observed and expected event yields (prefit) in CRs"},{"@id":"https://doi.org/10.17182/hepdata.150507.v1/t8","@type":"Dataset","description":"Summary of the data and background yields in the seven control region categories. The background prediction is shown after the...","name":"Summary of observed and expected event yields (postfit) in CRs"}],"identifier":[{"@type":"PropertyValue","propertyID":"HEPDataRecord","value":"https://www.hepdata.net/record/ins2673386?version=1"},{"@type":"PropertyValue","propertyID":"HEPDataRecordAlt","value":"https://www.hepdata.net/record/150507"}],"inLanguage":"en","name":"Search for leptoquark pair production decaying into $te^- \\bar{t}e^+$ or $t\\mu^- \\bar{t}\\mu^+$ in multi-lepton final states in $pp$ collisions at 13 TeV with the ATLAS detector","provider":{"@type":"Organization","name":"HEPData"},"publisher":{"@type":"Organization","name":"HEPData"},"url":"https://www.hepdata.net/record/ins2673386?version=1","version":1}