{"@context":"http://schema.org","@id":"https://doi.org/10.17182/hepdata.94415.v1","@reverse":{"isBasedOn":[{"@type":"ScholarlyArticle","identifier":{"@type":"PropertyValue","propertyID":"URL","value":"https://inspirehep.net/literature/1795076"}},{"@id":"https://doi.org/10.1007/JHEP10(2020)061","@type":"JournalArticle"}]},"@type":"Dataset","additionalType":"Collection","author":{"@type":"Organization","name":"ATLAS Collaboration"},"creator":{"@type":"Organization","name":"ATLAS Collaboration"},"datePublished":"2020","description":"This paper presents a search for new heavy particles decaying into a pair of top quarks using 139 fb$^{-1}$ of proton--proton collision data recorded at a centre-of-mass energy of $\\sqrt{s} = 13$ TeV with the ATLAS detector at the Large Hadron Collider. The search is performed using events consistent with pair production of high-transverse-momentum top quarks and their subsequent decays into the fully hadronic final states. The analysis is optimized for resonances decaying into a $t\\bar{t}$ pair with mass above 1.4 TeV, exploiting a dedicated multivariate technique with jet substructure to identify hadronically decaying top quarks using large-radius jets and evaluating the background expectation from data. No significant deviation from the background prediction is observed. Limits are set on the production cross-section times branching fraction for the new $Z'$ boson in a topcolor-assisted-technicolor model. The $Z'$ boson masses below 3.9 and 4.7 TeV are excluded at 95% confidence level for the decay widths of 1% and 3%, respectively.","hasPart":[{"@id":"https://doi.org/10.17182/hepdata.94415.v1/t1","@type":"Dataset","description":"Acceptance and acceptance times selection efficiency as a function of $m^{gen}_{t\\bar{t}}$ in SR$1b$. The acceptance is measured as the fraction...","name":"Figure 2a"},{"@id":"https://doi.org/10.17182/hepdata.94415.v1/t2","@type":"Dataset","description":"Acceptance and acceptance times selection efficiency as a function of $m^{gen}_{t\\bar{t}}$ in SR$2b$. The acceptance is measured as the fraction...","name":"Figure 2b"},{"@id":"https://doi.org/10.17182/hepdata.94415.v1/t3","@type":"Dataset","description":"Observed $m_{t\\bar{t}}^{reco}$ distributions in data for SR$1b$, shown together with the result of the fit with the three-shape-parameter function. The...","name":"Figure 3a"},{"@id":"https://doi.org/10.17182/hepdata.94415.v1/t4","@type":"Dataset","description":"Observed $m_{t\\bar{t}}^{reco}$ distributions in data for SR$2b$, shown together with the result of the fit with the three-shape-parameter function. The...","name":"Figure 3b"},{"@id":"https://doi.org/10.17182/hepdata.94415.v1/t5","@type":"Dataset","description":"Observed and expected upper limits on the cross-section times branching fraction of the $Z'_{TC2} \\rightarrow t\\bar{t}$ as a function of...","name":"Figure 4"},{"@id":"https://doi.org/10.17182/hepdata.94415.v1/t6","@type":"Dataset","description":"Fit parameter values obtained from fits to data in the two signal regions. The fit function is $f(x) = p_{0}...","name":"Background Fit Parameters"}],"identifier":[{"@type":"PropertyValue","propertyID":"HEPDataRecord","value":"https://www.hepdata.net/record/ins1795076?version=1"},{"@type":"PropertyValue","propertyID":"HEPDataRecordAlt","value":"https://www.hepdata.net/record/94415"}],"inLanguage":"en","name":"Search for $t\\bar{t}$ resonances in fully hadronic final states in $pp$ collisions at $\\sqrt{s}=13$ TeV with the ATLAS detector","provider":{"@type":"Organization","name":"HEPData"},"publisher":{"@type":"Organization","name":"HEPData"},"url":"https://www.hepdata.net/record/ins1795076?version=1","version":1}