{"@context":"http://schema.org","@id":"https://doi.org/10.17182/hepdata.113657.v3","@reverse":{"isBasedOn":[{"@type":"ScholarlyArticle","identifier":{"@type":"PropertyValue","propertyID":"URL","value":"https://inspirehep.net/literature/2013377"}},{"@id":"https://doi.org/10.1007/JHEP05(2022)091","@type":"JournalArticle"}]},"@type":"Dataset","additionalType":"Collection","author":{"@type":"Organization","name":"CMS Collaboration"},"creator":{"@type":"Organization","name":"CMS Collaboration"},"datePublished":"2022","description":"The production cross section of a top quark pair in association with a photon is measured in proton-proton collisions in the decay channel with two oppositely charged leptons (e$^\\pm\\mu^\\mp$, e$^+$e$^-$, or $\\mu^+\\mu^-$). The measurement is performed using 138 fb$^{-1}$ of proton-proton collision data recorded by the CMS experiment at $\\sqrt{s} =$ 13 TeV during the 2016-2018 data-taking period of the CERN LHC. A fiducial phase space is defined such that photons radiated by initial-state particles, top quarks, or any of their decay products are included. An inclusive cross section of 175.2 $\\pm$ 2.5 (stat) $\\pm$ 6.3 (syst) fb is measured in a signal region with at least one jet coming from the hadronization of a bottom quark and exactly one photon with transverse momentum above 20 GeV. Differential cross sections are measured as functions of several kinematic observables of the photon, leptons, and jets, and compared to standard model predictions. The measurements are also interpreted in the standard model effective field theory framework, and limits are found on the relevant Wilson coefficients from these results alone and in combination with a previous CMS measurement of the $\\mathrm{t\\bar{t}}\\gamma$ production process using the lepton+jets final state.","hasPart":[{"@id":"https://doi.org/10.17182/hepdata.113657.v3/t1","@type":"Dataset","description":"Observed and predicted event yields as a function of $p_{T}(\\gamma)$ in the $e\\mu$ channel, after the fit to the data.","name":"Figure 6a"},{"@id":"https://doi.org/10.17182/hepdata.113657.v3/t2","@type":"Dataset","description":"Observed and predicted event yields as a function of $p_{T}(\\gamma)$ in the $ee$ channel, after the fit to the data.","name":"Figure 6b"},{"@id":"https://doi.org/10.17182/hepdata.113657.v3/t3","@type":"Dataset","description":"Observed and predicted event yields as a function of $p_{T}(\\gamma)$ in the $\\mu\\mu$ channel, after the fit to the data.","name":"Figure 6c"},{"@id":"https://doi.org/10.17182/hepdata.113657.v3/t4","@type":"Dataset","description":"Measured inclusive fiducial $tt\\gamma$ production cross section in the dilepton final state for the different dilepton-flavour channels and combined.","name":"Figure 7"},{"@id":"https://doi.org/10.17182/hepdata.113657.v3/t5","@type":"Dataset","description":"Absolute differential $tt\\gamma$ production cross section as a function of $p_{T}(\\gamma)$ . The values provided in the table are not...","name":"Figure 8a"},{"@id":"https://doi.org/10.17182/hepdata.113657.v3/t6","@type":"Dataset","description":"Absolute differential $tt\\gamma$ production cross section as a function of $|\\eta |(\\gamma)$. The values provided in the table are not...","name":"Figure 8b"},{"@id":"https://doi.org/10.17182/hepdata.113657.v3/t7","@type":"Dataset","description":"Absolute differential $tt\\gamma$ production cross section as a function of min $\\Delta R(\\gamma, \\ell)$. The values provided in the table...","name":"Figure 8c"},{"@id":"https://doi.org/10.17182/hepdata.113657.v3/t8","@type":"Dataset","description":"Absolute differential $tt\\gamma$ production cross section as a function of $\\Delta R(\\gamma, \\ell_{1})$. The values provided in the table are...","name":"Figure 8d"},{"@id":"https://doi.org/10.17182/hepdata.113657.v3/t9","@type":"Dataset","description":"Absolute differential $tt\\gamma$ production cross section as a function of $\\Delta R(\\gamma, \\ell_{2})$. The values provided in the table are...","name":"Figure 8e"},{"@id":"https://doi.org/10.17182/hepdata.113657.v3/t10","@type":"Dataset","description":"Absolute differential $tt\\gamma$ production cross section as a function of min $\\Delta R(\\gamma, b)$. The values provided in the table...","name":"Figure 8f"},{"@id":"https://doi.org/10.17182/hepdata.113657.v3/t11","@type":"Dataset","description":"Absolute differential $tt\\gamma$ production cross section as a function of $|\\Delta\\eta(\\ell\\ell)|$. The values provided in the table are not divided...","name":"Figure 9a"},{"@id":"https://doi.org/10.17182/hepdata.113657.v3/t12","@type":"Dataset","description":"Absolute differential $tt\\gamma$ production cross section as a function of $\\Delta \\phi(\\ell\\ell)$. The values provided in the table are not...","name":"Figure 9b"},{"@id":"https://doi.org/10.17182/hepdata.113657.v3/t13","@type":"Dataset","description":"Absolute differential $tt\\gamma$ production cross section as a function of $p_{T}(\\ell\\ell) $. The values provided in the table are not...","name":"Figure 9c"},{"@id":"https://doi.org/10.17182/hepdata.113657.v3/t14","@type":"Dataset","description":"Absolute differential $tt\\gamma$ production cross section as a function of $p_{T}(\\ell_{1})+p_{T}(\\ell_{2})$ . The values provided in the table are not...","name":"Figure 9d"},{"@id":"https://doi.org/10.17182/hepdata.113657.v3/t15","@type":"Dataset","description":"Absolute differential $tt\\gamma$ production cross section as a function of min $\\Delta R(\\ell, j)$. The values provided in the table...","name":"Figure 9e"},{"@id":"https://doi.org/10.17182/hepdata.113657.v3/t16","@type":"Dataset","description":"Absolute differential $tt\\gamma$ production cross section as a function of $p_{T}(j_{1})$ .","name":"Figure 9f"},{"@id":"https://doi.org/10.17182/hepdata.113657.v3/t17","@type":"Dataset","description":"Normalized differential $tt\\gamma$ production cross section as a function of $p_{T}(\\gamma)$ . The values provided in the table are not...","name":"Figure 10a"},{"@id":"https://doi.org/10.17182/hepdata.113657.v3/t18","@type":"Dataset","description":"Normalized differential $tt\\gamma$ production cross section as a function of $|\\eta |(\\gamma)$. The values provided in the table are not...","name":"Figure 10b"},{"@id":"https://doi.org/10.17182/hepdata.113657.v3/t19","@type":"Dataset","description":"Normalized differential $tt\\gamma$ production cross section as a function of min $\\Delta R(\\gamma, \\ell)$. The values provided in the table...","name":"Figure 10c"},{"@id":"https://doi.org/10.17182/hepdata.113657.v3/t20","@type":"Dataset","description":"Normalized differential $tt\\gamma$ production cross section as a function of $\\Delta R(\\gamma, \\ell_{1})$. The values provided in the table are...","name":"Figure 10d"},{"@id":"https://doi.org/10.17182/hepdata.113657.v3/t21","@type":"Dataset","description":"Normalized differential $tt\\gamma$ production cross section as a function of $\\Delta R(\\gamma, \\ell_{2})$. The values provided in the table are...","name":"Figure 10e"},{"@id":"https://doi.org/10.17182/hepdata.113657.v3/t22","@type":"Dataset","description":"Normalized differential $tt\\gamma$ production cross section as a function of min $\\Delta R(\\gamma, b)$. The values provided in the table...","name":"Figure 10f"},{"@id":"https://doi.org/10.17182/hepdata.113657.v3/t23","@type":"Dataset","description":"Normalized differential $tt\\gamma$ production cross section as a function of $|\\Delta\\eta(\\ell\\ell)|$. The values provided in the table are not divided...","name":"Figure 11a"},{"@id":"https://doi.org/10.17182/hepdata.113657.v3/t24","@type":"Dataset","description":"Normalized differential $tt\\gamma$ production cross section as a function of $\\Delta \\phi(\\ell\\ell)$. The values provided in the table are not...","name":"Figure 11b"},{"@id":"https://doi.org/10.17182/hepdata.113657.v3/t25","@type":"Dataset","description":"Normalized differential $tt\\gamma$ production cross section as a function of $p_{T}(\\ell\\ell) $. The values provided in the table are not...","name":"Figure 11c"},{"@id":"https://doi.org/10.17182/hepdata.113657.v3/t26","@type":"Dataset","description":"Normalized differential $tt\\gamma$ production cross section as a function of $p_{T}(\\ell_{1})+p_{T}(\\ell_{2})$ . The values provided in the table are not...","name":"Figure 11d"},{"@id":"https://doi.org/10.17182/hepdata.113657.v3/t27","@type":"Dataset","description":"Normalized differential $tt\\gamma$ production cross section as a function of min $\\Delta R(\\ell, j)$. The values provided in the table...","name":"Figure 11e"},{"@id":"https://doi.org/10.17182/hepdata.113657.v3/t28","@type":"Dataset","description":"Normalized differential $tt\\gamma$ production cross section as a function of $p_{T}(j_{1})$ . The values provided in the table are not...","name":"Figure 11f"},{"@id":"https://doi.org/10.17182/hepdata.113657.v3/t29","@type":"Dataset","description":"Correlation matrix of the systematic uncertainty in the absolute differential cross section as a function of $p_{T}(\\gamma)$ .","name":"Syst. correlation for $p_{T}(\\gamma)$"},{"@id":"https://doi.org/10.17182/hepdata.113657.v3/t30","@type":"Dataset","description":"Correlation matrix of the statistical uncertainty in the absolute differential cross section as a function of $p_{T}(\\gamma)$ .","name":"Stat. correlation for $p_{T}(\\gamma)$"},{"@id":"https://doi.org/10.17182/hepdata.113657.v3/t31","@type":"Dataset","description":"Correlation matrix of the systematic uncertainty in the absolute differential cross section as a function of $|\\eta |(\\gamma)$.","name":"Syst. correlation for $|\\eta |(\\gamma)$"},{"@id":"https://doi.org/10.17182/hepdata.113657.v3/t32","@type":"Dataset","description":"Correlation matrix of the statistical uncertainty in the absolute differential cross section as a function of $|\\eta |(\\gamma)$.","name":"Stat. correlation for $|\\eta |(\\gamma)$"},{"@id":"https://doi.org/10.17182/hepdata.113657.v3/t33","@type":"Dataset","description":"Correlation matrix of the systematic uncertainty in the absolute differential cross section as a function of min $\\Delta R(\\gamma, \\ell)$.","name":"Syst. correlation for min $\\Delta R(\\gamma, \\ell)$"},{"@id":"https://doi.org/10.17182/hepdata.113657.v3/t34","@type":"Dataset","description":"Correlation matrix of the statistical uncertainty in the absolute differential cross section as a function of min $\\Delta R(\\gamma, \\ell)$.","name":"Stat. correlation for min $\\Delta R(\\gamma, \\ell)$"},{"@id":"https://doi.org/10.17182/hepdata.113657.v3/t35","@type":"Dataset","description":"Correlation matrix of the systematic uncertainty in the absolute differential cross section as a function of $\\Delta R(\\gamma, \\ell_{1})$.","name":"Syst. correlation for $\\Delta R(\\gamma, \\ell_{1})$"},{"@id":"https://doi.org/10.17182/hepdata.113657.v3/t36","@type":"Dataset","description":"Correlation matrix of the statistical uncertainty in the absolute differential cross section as a function of $\\Delta R(\\gamma, \\ell_{1})$.","name":"Stat. correlation for $\\Delta R(\\gamma, \\ell_{1})$"},{"@id":"https://doi.org/10.17182/hepdata.113657.v3/t37","@type":"Dataset","description":"Correlation matrix of the systematic uncertainty in the absolute differential cross section as a function of $\\Delta R(\\gamma, \\ell_{2})$.","name":"Syst. correlation for $\\Delta R(\\gamma, \\ell_{2})$"},{"@id":"https://doi.org/10.17182/hepdata.113657.v3/t38","@type":"Dataset","description":"Correlation matrix of the statistical uncertainty in the absolute differential cross section as a function of $\\Delta R(\\gamma, \\ell_{2})$.","name":"Stat. correlation for $\\Delta R(\\gamma, \\ell_{2})$"},{"@id":"https://doi.org/10.17182/hepdata.113657.v3/t39","@type":"Dataset","description":"Correlation matrix of the systematic uncertainty in the absolute differential cross section as a function of min $\\Delta R(\\gamma, b)$.","name":"Syst. correlation for min $\\Delta R(\\gamma, b)$"},{"@id":"https://doi.org/10.17182/hepdata.113657.v3/t40","@type":"Dataset","description":"Correlation matrix of the statistical uncertainty in the absolute differential cross section as a function of min $\\Delta R(\\gamma, b)$.","name":"Stat. correlation for min $\\Delta R(\\gamma, b)$"},{"@id":"https://doi.org/10.17182/hepdata.113657.v3/t41","@type":"Dataset","description":"Correlation matrix of the systematic uncertainty in the absolute differential cross section as a function of $|\\Delta\\eta(\\ell\\ell)|$.","name":"Syst. correlation for $|\\Delta\\eta(\\ell\\ell)|$"},{"@id":"https://doi.org/10.17182/hepdata.113657.v3/t42","@type":"Dataset","description":"Correlation matrix of the statistical uncertainty in the absolute differential cross section as a function of $|\\Delta\\eta(\\ell\\ell)|$.","name":"Stat. correlation for $|\\Delta\\eta(\\ell\\ell)|$"},{"@id":"https://doi.org/10.17182/hepdata.113657.v3/t43","@type":"Dataset","description":"Correlation matrix of the systematic uncertainty in the absolute differential cross section as a function of $\\Delta \\phi(\\ell\\ell)$.","name":"Syst. correlation for $\\Delta \\phi(\\ell\\ell)$"},{"@id":"https://doi.org/10.17182/hepdata.113657.v3/t44","@type":"Dataset","description":"Correlation matrix of the statistical uncertainty in the absolute differential cross section as a function of $\\Delta \\phi(\\ell\\ell)$.","name":"Stat. correlation for $\\Delta \\phi(\\ell\\ell)$"},{"@id":"https://doi.org/10.17182/hepdata.113657.v3/t45","@type":"Dataset","description":"Correlation matrix of the systematic uncertainty in the absolute differential cross section as a function of $p_{T}(\\ell\\ell) $.","name":"Syst. correlation for $p_{T}(\\ell\\ell)$"},{"@id":"https://doi.org/10.17182/hepdata.113657.v3/t46","@type":"Dataset","description":"Correlation matrix of the statistical uncertainty in the absolute differential cross section as a function of $p_{T}(\\ell\\ell) $.","name":"Stat. correlation for $p_{T}(\\ell\\ell)$"},{"@id":"https://doi.org/10.17182/hepdata.113657.v3/t47","@type":"Dataset","description":"Correlation matrix of the systematic uncertainty in the absolute differential cross section as a function of $p_{T}(\\ell_{1})+p_{T}(\\ell_{2})$ .","name":"Syst. correlation for $p_{T}(\\ell_{1})+p_{T}(\\ell_{2})$"},{"@id":"https://doi.org/10.17182/hepdata.113657.v3/t48","@type":"Dataset","description":"Correlation matrix of the statistical uncertainty in the absolute differential cross section as a function of $p_{T}(\\ell_{1})+p_{T}(\\ell_{2})$ .","name":"Stat. correlation for $p_{T}(\\ell_{1})+p_{T}(\\ell_{2})$"},{"@id":"https://doi.org/10.17182/hepdata.113657.v3/t49","@type":"Dataset","description":"Correlation matrix of the systematic uncertainty in the absolute differential cross section as a function of min $\\Delta R(\\ell, j)$.","name":"Syst. correlation for min $\\Delta R(\\ell, j)$"},{"@id":"https://doi.org/10.17182/hepdata.113657.v3/t50","@type":"Dataset","description":"Correlation matrix of the statistical uncertainty in the absolute differential cross section as a function of min $\\Delta R(\\ell, j)$.","name":"Stat. correlation for min $\\Delta R(\\ell, j)$"},{"@id":"https://doi.org/10.17182/hepdata.113657.v3/t51","@type":"Dataset","description":"Correlation matrix of the systematic uncertainty in the absolute differential cross section as a function of $p_{T}(j_{1})$ .","name":"Syst. correlation for $p_{T}(j_{1})$"},{"@id":"https://doi.org/10.17182/hepdata.113657.v3/t52","@type":"Dataset","description":"Correlation matrix of the statistical uncertainty in the absolute differential cross section as a function of $p_{T}(j_{1})$ .","name":"Stat. correlation for $p_{T}(j_{1})$"},{"@id":"https://doi.org/10.17182/hepdata.113657.v3/t53","@type":"Dataset","description":"Negative log-likelihood difference from the best-fit value for the one-dimensional scans of the Wilson coefficient $c_{tZ}$, using the photon pT...","name":"Figure 12a"},{"@id":"https://doi.org/10.17182/hepdata.113657.v3/t54","@type":"Dataset","description":"Negative log-likelihood difference from the best-fit value for the one-dimensional scans of the Wilson coefficient $c_{tZ}$, using the combination of...","name":"Figure 12b"},{"@id":"https://doi.org/10.17182/hepdata.113657.v3/t55","@type":"Dataset","description":"Negative log-likelihood difference from the best-fit value for the one-dimensional scans of the Wilson coefficient $c^{I}_{tZ}$, using the photon pT...","name":"Figure 12c"},{"@id":"https://doi.org/10.17182/hepdata.113657.v3/t56","@type":"Dataset","description":"Negative log-likelihood difference from the best-fit value for the one-dimensional scans of the Wilson coefficient $c^{I}_{tZ}$, using the combination of...","name":"Figure 12d"},{"@id":"https://doi.org/10.17182/hepdata.113657.v3/t57","@type":"Dataset","description":"Negative log-likelihood difference from the best-fit value for the one-dimensional scans of the Wilson coefficient $c_{tZ}$, using the photon pT...","name":"Profiled dilepton $c_{tZ}$ scan"},{"@id":"https://doi.org/10.17182/hepdata.113657.v3/t58","@type":"Dataset","description":"Negative log-likelihood difference from the best-fit value for the one-dimensional scans of the Wilson coefficient $c_{tZ}$, using the combination of...","name":"Profiled combined $c_{tZ}$ scan"},{"@id":"https://doi.org/10.17182/hepdata.113657.v3/t59","@type":"Dataset","description":"Negative log-likelihood difference from the best-fit value for the one-dimensional scans of the Wilson coefficient $c^{I}_{tZ}$, using the photon pT...","name":"Profiled dilepton $c^{I}_{tZ}$ scan"},{"@id":"https://doi.org/10.17182/hepdata.113657.v3/t60","@type":"Dataset","description":"Negative log-likelihood difference from the best-fit value for the one-dimensional scans of the Wilson coefficient $c^{I}_{tZ}$, using the combination of...","name":"Profiled combined $c^{I}_{tZ}$ scan"},{"@id":"https://doi.org/10.17182/hepdata.113657.v3/t61","@type":"Dataset","description":"Negative log-likelihood difference from the best-fit value as a function of Wilson coefficients $c_{tZ}$ and $c^{I}_{tZ}$ from the interpretation of...","name":"Figure 13a"},{"@id":"https://doi.org/10.17182/hepdata.113657.v3/t62","@type":"Dataset","description":"Negative log-likelihood difference from the best-fit value as a function of Wilson coefficients $c_{tZ}$ and $c^{I}_{tZ}$ from the interpretation of...","name":"Figure 13b"},{"@id":"https://doi.org/10.17182/hepdata.113657.v3/t63","@type":"Dataset","description":"One-dimensional 68 and 95% CL intervals obtained for the Wilson coefficients $c_{tZ}$ and $c^{I}_{tZ}$, using the photon $p_{T}$ distribution from...","name":"Table 5"},{"@id":"https://doi.org/10.17182/hepdata.113657.v3/t64","@type":"Dataset","description":"Comparison of observed $95\\%$ CL intervals for the Wilson coefficients $c_{tZ}$ and $c^{I}_{tZ}$. Results are shown from a CMS ttZ...","name":"Figure 14"}],"identifier":[{"@type":"PropertyValue","propertyID":"HEPDataRecord","value":"https://www.hepdata.net/record/ins2013377?version=3"},{"@type":"PropertyValue","propertyID":"HEPDataRecordAlt","value":"https://www.hepdata.net/record/113657"}],"inLanguage":"en","name":"Measurement of the inclusive and differential $\\mathrm{t\\bar{t}}\\gamma$ cross sections in the dilepton channel and effective field theory interpretation in proton-proton collisions at $\\sqrt{s}$ =13 TeV","provider":{"@type":"Organization","name":"HEPData"},"publisher":{"@type":"Organization","name":"HEPData"},"url":"https://www.hepdata.net/record/ins2013377?version=3","version":3}