{"@context":"http://schema.org","@id":"https://doi.org/10.17182/hepdata.158368.v1","@reverse":{"isBasedOn":[{"@type":"ScholarlyArticle","identifier":{"@type":"PropertyValue","propertyID":"URL","value":"https://inspirehep.net/literature/3123190"}},{"@id":"https://doi.org/10.1103/bwqs-vgqn","@type":"JournalArticle"}]},"@type":"Dataset","additionalType":"Collection","author":{"@type":"Organization","name":"CMS Collaboration"},"creator":{"@type":"Organization","name":"CMS Collaboration"},"datePublished":"2026","description":"A search for the pair production of heavy spin-1/2 or spin-3/2 resonances (t$^*$) in proton-proton collisions at $\\sqrt{s}$ = 13 TeV is presented. Data collected with the CMS detector at the CERN LHC from 2016 to 2018 corresponding to an integrated luminosity of 138 fb$^{-1}$ are used. The analysis targets benchmark signal scenarios where one t$^*$ decays into a top quark (t) and a photon ($\u03b3$), and the other into a t quark and a gluon (g), i.e., pp $\\to$ t$^*\\bar{\\mathrm{t}}^*$$\\to$ tt$\u03b3$g. All-hadronic final states from the t pair decay chain are selected using jet substructure techniques. The signal is probed as a function of the t$^*$ candidate mass, which is reconstructed using the photon and a top quark candidate jet. No significant deviation from the background-only hypothesis is found. Observed (expected) upper limits on the signal cross section at 95% confidence level are set, excluding masses of spin-1/2 t$^*$ particles below 930 (930) GeV and spin-3/2 t$^*$ particles below 1330 (1390) GeV. This analysis marks the first search for heavy resonances in the $\\mathrm{t\\bar{t}}\u03b3$g channel. Exploiting the high-energy photon to reduce the backgrounds, this search achieves sensitivity competitive with pp $\\to$ t$^*\\mathrm{\\bar{t}}^*$ $\\to$ $\\mathrm{t\\bar{t}}$gg searches for spin-1/2 t$^*$ despite the small expected t$^*$ $\\to$ t$\u03b3$ branching fraction.","hasPart":[{"@id":"https://doi.org/10.17182/hepdata.158368.v1/t1","@type":"Dataset","description":"The background-only prefit $p_{T}^{\\gamma}$ distributions in SR is shown. Statistical and systematic uncertainties in the expected background yields depicted by...","name":"Figure 3a prefit"},{"@id":"https://doi.org/10.17182/hepdata.158368.v1/t2","@type":"Dataset","description":"The background-only prefit $p_{T}^{j_{1}}$ distributions in SR is shown. 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