{"@context":"http://schema.org","@id":"https://doi.org/10.17182/hepdata.168403.v1","@reverse":{"isBasedOn":[{"@type":"ScholarlyArticle","identifier":{"@type":"PropertyValue","propertyID":"URL","value":"https://inspirehep.net/literature/3134005"}}]},"@type":"Dataset","additionalType":"Collection","author":{"@type":"Organization","name":"CMS Collaboration"},"creator":{"@type":"Organization","name":"CMS Collaboration"},"datePublished":"2026","description":"A search for new particles decaying to top quark-antiquark pairs is performed using proton-proton collision data at a centre-of-mass energy of 13 TeV.The data set recorded with the CMS detector between 2016 and 2018 is used, corresponding to an integrated luminosity of 138 fb$^{-1}$.Final states with 0, 1, and 2 leptons are analyzed, covering all decay modes of the top quark-antiquark pairs.Heavy Z' bosons with relative widths of 1, 10, and 30\\% are excluded for masses in the ranges 0.4--4.8, 0.4--6.2, and 0.4--7.4 TeV, respectively.A Kaluza--Klein gluon in the Randall--Sundrum model and a dark-matter mediator are excluded for masses between 0.5--5.5 and 1.0--4.2 TeV, respectively. These results set the most stringent limits to date for the considered models in the $t\\bar{t}$ final state.In addition, in the two-Higgs-doublet models, upper limits are set on the coupling strength modifier for scalar and pseudoscalar Higgs bosons with relative widths of 2.5, 10, and 25\\% in the mass range of 0.5--1.0 TeV.","hasPart":[{"@id":"https://doi.org/10.17182/hepdata.168403.v1/t1","@type":"Dataset","description":"Postfit distributions in $m_{t\\bar{t}}$ for data and simulation for the central category for the all-hadronic channel, under the background-only hypothesis....","name":"Figure 5a"},{"@id":"https://doi.org/10.17182/hepdata.168403.v1/t2","@type":"Dataset","description":"Postfit distributions in $m_{t\\bar{t}}$ for data and simulation for the forward category for the all-hadronic channel, under the background-only hypothesis....","name":"Figure 5b"},{"@id":"https://doi.org/10.17182/hepdata.168403.v1/t3","@type":"Dataset","description":"Postfit distributions in $m_{t\\bar{t}}$ for data and simulation for the central category for the all-hadronic channel, under the background-only hypothesis....","name":"Figure 5c"},{"@id":"https://doi.org/10.17182/hepdata.168403.v1/t4","@type":"Dataset","description":"Postfit distributions in $m_{t\\bar{t}}$ for data and simulation for the forward category for the all-hadronic channel, under the background-only hypothesis....","name":"Figure 5d"},{"@id":"https://doi.org/10.17182/hepdata.168403.v1/t5","@type":"Dataset","description":"Postfit distributions in $m_{t\\bar{t}}$ for data and simulation for the central category for the all-hadronic channel, under the background-only hypothesis....","name":"Figure 5e"},{"@id":"https://doi.org/10.17182/hepdata.168403.v1/t6","@type":"Dataset","description":"Postfit distributions in $m_{t\\bar{t}}$ for data and simulation for the forward category for the all-hadronic channel, under the background-only hypothesis....","name":"Figure 5f"},{"@id":"https://doi.org/10.17182/hepdata.168403.v1/t7","@type":"Dataset","description":"Postfit distributions in $m_{t\\bar{t}}$ in the single-lepton channel for data and simulation in the single t control region, under the...","name":"Figure 10a"},{"@id":"https://doi.org/10.17182/hepdata.168403.v1/t8","@type":"Dataset","description":"Postfit distributions in $m_{t\\bar{t}}$ in the single-lepton channel for data and simulation in the V+jets control region, under the background-only...","name":"Figure 10b"},{"@id":"https://doi.org/10.17182/hepdata.168403.v1/t9","@type":"Dataset","description":"Postfit distributions in $m_{t\\bar{t}}$ in the single-lepton channel for data and simulation in the first bin of cos(theta*) in the...","name":"Figure 11a"},{"@id":"https://doi.org/10.17182/hepdata.168403.v1/t10","@type":"Dataset","description":"Postfit distributions in $m_{t\\bar{t}}$ in the single-lepton channel for data and simulation in the first bin of cos(theta*) in the...","name":"Figure 11b"},{"@id":"https://doi.org/10.17182/hepdata.168403.v1/t11","@type":"Dataset","description":"Postfit distributions in $m_{t\\bar{t}}$ in the single-lepton channel for data and simulation in the second bin of cos(theta*) in the...","name":"Figure 11c"},{"@id":"https://doi.org/10.17182/hepdata.168403.v1/t12","@type":"Dataset","description":"Postfit distributions in $m_{t\\bar{t}}$ in the single-lepton channel for data and simulation in the second bin of cos(theta*) in the...","name":"Figure 11d"},{"@id":"https://doi.org/10.17182/hepdata.168403.v1/t13","@type":"Dataset","description":"Postfit distributions in $m_{t\\bar{t}}$ in the single-lepton channel for data and simulation in the third bin of cos(theta*) in the...","name":"Figure 11e"},{"@id":"https://doi.org/10.17182/hepdata.168403.v1/t14","@type":"Dataset","description":"Postfit distributions in $m_{t\\bar{t}}$ in the single-lepton channel for data and simulation in the third bin of cos(theta*) in the...","name":"Figure 11f"},{"@id":"https://doi.org/10.17182/hepdata.168403.v1/t15","@type":"Dataset","description":"Postfit distributions in $m_{t\\bar{t}}$ in the single-lepton channel for data and simulation in the fourth bin of cos(theta*) in the...","name":"Figure 12a"},{"@id":"https://doi.org/10.17182/hepdata.168403.v1/t16","@type":"Dataset","description":"Postfit distributions in $m_{t\\bar{t}}$ in the single-lepton channel for data and simulation in the fourth bin of cos(theta*) in the...","name":"Figure 12b"},{"@id":"https://doi.org/10.17182/hepdata.168403.v1/t17","@type":"Dataset","description":"Postfit distributions in $m_{t\\bar{t}}$ in the single-lepton channel for data and simulation in the fifth bin of cos(theta*) in the...","name":"Figure 12c"},{"@id":"https://doi.org/10.17182/hepdata.168403.v1/t18","@type":"Dataset","description":"Postfit distributions in $m_{t\\bar{t}}$ in the single-lepton channel for data and simulation in the sixth bin of cos(theta*) in 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hypothesis....","name":"Figure 14a"},{"@id":"https://doi.org/10.17182/hepdata.168403.v1/t23","@type":"Dataset","description":"Postfit distributions in S_T for data and simulation for the merged category for the $mm$ channel, under the background-only hypothesis....","name":"Figure 14b"},{"@id":"https://doi.org/10.17182/hepdata.168403.v1/t24","@type":"Dataset","description":"Postfit distributions in S_T for data and simulation for the resolved category for the $e\\mu$ channel, under the background-only hypothesis....","name":"Figure 14c"},{"@id":"https://doi.org/10.17182/hepdata.168403.v1/t25","@type":"Dataset","description":"Postfit distributions in S_T for data and simulation for the merged category for the $e\\mu$ channel, under the background-only hypothesis....","name":"Figure 14d"},{"@id":"https://doi.org/10.17182/hepdata.168403.v1/t26","@type":"Dataset","description":"Postfit distributions in S_T for data and simulation for the resolved category for the $ee$ channel, under the 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