Observed and expected 95% CL upper limits on the total cross-section σ($pp$ → $T$ → $Ht/Zt$) as a function of $T$-quark mass in the SU(2) doublet representation assuming $\kappa$=0.5. The expected limits for the individual analyses are shown. The $HtZt$ analysis is only included in the limit calculation for $m_{\mathrm{T}}$ < 2.1 TeV.

Observed 95% CL exclusion limits on the total cross-section σ($pp$ → $T$ → $Ht/Zt$) as a function of the universal coupling constant and the $T$-quark mass in the SU(2) singlet representation. Limits are only presented in the regime $\Gamma/m_{\mathrm{T}}$ < 50%, where the theory calculations are known to be valid.

Expected 95% CL exclusion limits on the total cross-section σ($pp$ → $T$ → $Ht/Zt$) as a function of the universal coupling constant and the $T$-quark mass in the SU(2) singlet representation. Limits are only presented in the regime $\Gamma/m_{\mathrm{T}}$ < 50%, where the theory calculations are known to be valid.

Observed 95% CL exclusion limits on the total cross-section σ($pp$ → $T$ → $Ht/Zt$) as a function of the universal coupling constant and the $T$-quark mass in the SU(2) doublet representation. Limits are only presented in the regime $\Gamma/m_{\mathrm{T}}$ < 50%, where the theory calculations are known to be valid.

Expected 95% CL exclusion limits on the total cross-section σ($pp$ → $T$ → $Ht/Zt$) as a function of the universal coupling constant and the $T$-quark mass in the SU(2) doublet representation. Limits are only presented in the regime $\Gamma/m_{\mathrm{T}}$ < 50%, where the theory calculations are known to be valid.

Obs.Comb 95% CL exclusion limits on the universal coupling constant $\kappa$ as a function of the $T$ quark mass in the SU(2) singlet representations for the combination. Limits are only presented in the regime $\Gamma_{\mathrm{T}}/m_{\mathrm{T}} < 50\%$, where the theory calculations are known to be valid.

Exp.Comb 95% CL exclusion limits on the universal coupling constant $\kappa$ as a function of the $T$ quark mass in the SU(2) singlet representations for the combination. Limits are only presented in the regime $\Gamma_{\mathrm{T}}/m_{\mathrm{T}} < 50\%$, where the theory calculations are known to be valid.

Exp.$+1\sigma$ for the 95% CL exclusion limits on the universal coupling constant $\kappa$ as a function of the $T$ quark mass in the SU(2) singlet representations for the combination. Limits are only presented in the regime $\Gamma_{\mathrm{T}}/m_{\mathrm{T}} < 50\%$, where the theory calculations are known to be valid.

Exp.$-1\sigma$ for the 95% CL exclusion limits on the universal coupling constant $\kappa$ as a function of the $T$ quark mass in the SU(2) singlet representations for the combination. Limits are only presented in the regime $\Gamma_{\mathrm{T}}/m_{\mathrm{T}} < 50\%$, where the theory calculations are known to be valid.

Exp.$+2\sigma$ for the 95% CL exclusion limits on the universal coupling constant $\kappa$ as a function of the $T$ quark mass in the SU(2) singlet representations for the combination. Limits are only presented in the regime $\Gamma_{\mathrm{T}}/m_{\mathrm{T}} < 50\%$, where the theory calculations are known to be valid.

Exp.$-2\sigma$ for the 95% CL exclusion limits on the universal coupling constant $\kappa$ as a function of the $T$ quark mass in the SU(2) singlet representations for the combination. Limits are only presented in the regime $\Gamma_{\mathrm{T}}/m_{\mathrm{T}} < 50\%$, where the theory calculations are known to be valid.

Exp.OSML 95% CL exclusion limits on the universal coupling constant $\kappa$ as a function of the $T$ quark mass in the SU(2) singlet representations for the combination. Limits are only presented in the regime $\Gamma_{\mathrm{T}}/m_{\mathrm{T}} < 50\%$, where the theory calculations are known to be valid.

Exp.HTZT 95% CL exclusion limits on the universal coupling constant $\kappa$ as a function of the $T$ quark mass in the SU(2) singlet representations for the combination. Limits are only presented in the regime $\Gamma_{\mathrm{T}}/m_{\mathrm{T}} < 50\%$, where the theory calculations are known to be valid.

Exp.Monotop 95% CL exclusion limits on the universal coupling constant $\kappa$ as a function of the $T$ quark mass in the SU(2) singlet representations for the combination. Limits are only presented in the regime $\Gamma_{\mathrm{T}}/m_{\mathrm{T}} < 50\%$, where the theory calculations are known to be valid.

Obs.Comb 95% CL exclusion limits on the universal coupling constant $\kappa$ as a function of the $T$ quark mass in the SU(2) doublet representations for the combination. Limits are only presented in the regime $\Gamma_{\mathrm{T}}/m_{\mathrm{T}} < 50\%$, where the theory calculations are known to be valid.

Exp.Comb 95% CL exclusion limits on the universal coupling constant $\kappa$ as a function of the $T$ quark mass in the SU(2) doublet representations for the combination. Limits are only presented in the regime $\Gamma_{\mathrm{T}}/m_{\mathrm{T}} < 50\%$, where the theory calculations are known to be valid.

Exp.$+1\sigma$ for the 95% CL exclusion limits on the universal coupling constant $\kappa$ as a function of the $T$ quark mass in the SU(2) doublet representations for the combination. Limits are only presented in the regime $\Gamma_{\mathrm{T}}/m_{\mathrm{T}} < 50\%$, where the theory calculations are known to be valid.

Exp.$-1\sigma$ for the 95% CL exclusion limits on the universal coupling constant $\kappa$ as a function of the $T$ quark mass in the SU(2) doublet representations for the combination. Limits are only presented in the regime $\Gamma_{\mathrm{T}}/m_{\mathrm{T}} < 50\%$, where the theory calculations are known to be valid.

Exp.$+2\sigma$ for the 95% CL exclusion limits on the universal coupling constant $\kappa$ as a function of the $T$ quark mass in the SU(2) doublet representations for the combination. Limits are only presented in the regime $\Gamma_{\mathrm{T}}/m_{\mathrm{T}} < 50\%$, where the theory calculations are known to be valid.

Exp.$-2\sigma$ for the 95% CL exclusion limits on the universal coupling constant $\kappa$ as a function of the $T$ quark mass in the SU(2) doublet representations for the combination. Limits are only presented in the regime $\Gamma_{\mathrm{T}}/m_{\mathrm{T}} < 50\%$, where the theory calculations are known to be valid.

Exp.OSML 95% CL exclusion limits on the universal coupling constant $\kappa$ as a function of the $T$ quark mass in the SU(2) doublet representations for the combination. Limits are only presented in the regime $\Gamma_{\mathrm{T}}/m_{\mathrm{T}} < 50\%$, where the theory calculations are known to be valid.

Exp.HTZT 95% CL exclusion limits on the universal coupling constant $\kappa$ as a function of the $T$ quark mass in the SU(2) doublet representations for the combination. Limits are only presented in the regime $\Gamma_{\mathrm{T}}/m_{\mathrm{T}} < 50\%$, where the theory calculations are known to be valid.

Observed upper limits at 95% CL on the $T$ quark mass as a function of the relative resonance width ($\Gamma_{\mathrm{T}}/m_{\mathrm{T}}$) and the relative coupling parameter $\xi_W$.

Expected upper limits at 95% CL on the $T$ quark mass as a function of the relative resonance width ($\Gamma_{\mathrm{T}}/m_{\mathrm{T}}$) and the relative coupling parameter $\xi_W$.

Observed and expected 95% CL upper limits on the total cross-section σ($pp$ → $T$ → $Ht/Zt$) as a function of $T$-quark mass in the SU(2) singlet representation assuming $\kappa$=0.7. The expected limits for the individual analyses are shown.

Observed and expected 95% CL upper limits on the total cross-section σ($pp$ → $T$ → $Ht/Zt$) as a function of $T$-quark mass in the SU(2) doublet representation assuming $\kappa$=0.7. The expected limits for the individual analyses are shown.

Observed and expected 95% CL upper limits on the total cross-section σ($pp$ → $T$ → $Ht/Zt$) as a function of $T$-quark mass in the SU(2) singlet representation assuming $\kappa$=0.3. The observed limits for the individual analyses are shown. The $HtZt$ analysis is only included in the limit calculation for $m_{\mathrm{T}}$ < 2.1 TeV.

Observed and expected 95% CL upper limits on the total cross-section σ($pp$ → $T$ → $Ht/Zt$) as a function of $T$-quark mass in the SU(2) singlet representation assuming $\kappa$=0.5. The observed limits for the individual analyses are shown. The $HtZt$ analysis is only included in the limit calculation for $m_{\mathrm{T}}$ < 2.1 TeV.

Observed and expected 95% CL upper limits on the total cross-section σ($pp$ → $T$ → $Ht/Zt$) as a function of $T$-quark mass in the SU(2) singlet representation assuming $\kappa$=0.7. The observed limits for the individual analyses are shown.

Observed and expected 95% CL upper limits on the total cross-section σ($pp$ → $T$ → $Ht/Zt$) as a function of $T$-quark mass in the SU(2) doublet representation assuming $\kappa$=0.3. The observed limits for the individual analyses are shown. The $HtZt$ analysis is only included in the limit calculation for $m_{\mathrm{T}}$ < 2.1 TeV.

Observed and expected 95% CL upper limits on the total cross-section σ($pp$ → $T$ → $Ht/Zt$) as a function of $T$-quark mass in the SU(2) doublet representation assuming $\kappa$=0.5. The observed limits for the individual analyses are shown. The $HtZt$ analysis is only included in the limit calculation for $m_{\mathrm{T}}$ < 2.1 TeV.

Observed and expected 95% CL upper limits on the total cross-section σ($pp$ → $T$ → $Ht/Zt$) as a function of $T$-quark mass in the SU(2) doublet representation assuming $\kappa$=0.7. The observed limits for the individual analyses are shown.

Obs.Comb 95% CL exclusion limits on the universal coupling constant $\kappa$ as a function of the $T$ quark mass in the SU(2) singlet representations for the combination. Limits are only presented in the regime $\Gamma_{\mathrm{T}}/m_{\mathrm{T}} < 50\%$, where the theory calculations are known to be valid.

Exp.Comb 95% CL exclusion limits on the universal coupling constant $\kappa$ as a function of the $T$ quark mass in the SU(2) singlet representations for the combination. Limits are only presented in the regime $\Gamma_{\mathrm{T}}/m_{\mathrm{T}} < 50\%$, where the theory calculations are known to be valid.

Exp.$+1\sigma$ for the 95% CL exclusion limits on the universal coupling constant $\kappa$ as a function of the $T$ quark mass in the SU(2) singlet representations for the combination. Limits are only presented in the regime $\Gamma_{\mathrm{T}}/m_{\mathrm{T}} < 50\%$, where the theory calculations are known to be valid.

Exp.$-1\sigma$ for the 95% CL exclusion limits on the universal coupling constant $\kappa$ as a function of the $T$ quark mass in the SU(2) singlet representations for the combination. Limits are only presented in the regime $\Gamma_{\mathrm{T}}/m_{\mathrm{T}} < 50\%$, where the theory calculations are known to be valid.

Exp.$+2\sigma$ for the 95% CL exclusion limits on the universal coupling constant $\kappa$ as a function of the $T$ quark mass in the SU(2) singlet representations for the combination. Limits are only presented in the regime $\Gamma_{\mathrm{T}}/m_{\mathrm{T}} < 50\%$, where the theory calculations are known to be valid.

Exp.$-2\sigma$ for the 95% CL exclusion limits on the universal coupling constant $\kappa$ as a function of the $T$ quark mass in the SU(2) singlet representations for the combination. Limits are only presented in the regime $\Gamma_{\mathrm{T}}/m_{\mathrm{T}} < 50\%$, where the theory calculations are known to be valid.

Obs.OSML 95% CL exclusion limits on the universal coupling constant $\kappa$ as a function of the $T$ quark mass in the SU(2) singlet representations for the combination. Limits are only presented in the regime $\Gamma_{\mathrm{T}}/m_{\mathrm{T}} < 50\%$, where the theory calculations are known to be valid.

Obs.HTZT 95% CL exclusion limits on the universal coupling constant $\kappa$ as a function of the $T$ quark mass in the SU(2) singlet representations for the combination. Limits are only presented in the regime $\Gamma_{\mathrm{T}}/m_{\mathrm{T}} < 50\%$, where the theory calculations are known to be valid.

Obs.Monotop 95% CL exclusion limits on the universal coupling constant $\kappa$ as a function of the $T$ quark mass in the SU(2) singlet representations for the combination. Limits are only presented in the regime $\Gamma_{\mathrm{T}}/m_{\mathrm{T}} < 50\%$, where the theory calculations are known to be valid.

Obs.Comb 95% CL exclusion limits on the universal coupling constant $\kappa$ as a function of the $T$ quark mass in the SU(2) doublet representations for the combination. Limits are only presented in the regime $\Gamma_{\mathrm{T}}/m_{\mathrm{T}} < 50\%$, where the theory calculations are known to be valid.

Exp.Comb 95% CL exclusion limits on the universal coupling constant $\kappa$ as a function of the $T$ quark mass in the SU(2) doublet representations for the combination. Limits are only presented in the regime $\Gamma_{\mathrm{T}}/m_{\mathrm{T}} < 50\%$, where the theory calculations are known to be valid.

Exp.$+1\sigma$ for the 95% CL exclusion limits on the universal coupling constant $\kappa$ as a function of the $T$ quark mass in the SU(2) doublet representations for the combination. Limits are only presented in the regime $\Gamma_{\mathrm{T}}/m_{\mathrm{T}} < 50\%$, where the theory calculations are known to be valid.

Exp.$-1\sigma$ for the 95% CL exclusion limits on the universal coupling constant $\kappa$ as a function of the $T$ quark mass in the SU(2) doublet representations for the combination. Limits are only presented in the regime $\Gamma_{\mathrm{T}}/m_{\mathrm{T}} < 50\%$, where the theory calculations are known to be valid.

Exp.$+2\sigma$ for the 95% CL exclusion limits on the universal coupling constant $\kappa$ as a function of the $T$ quark mass in the SU(2) doublet representations for the combination. Limits are only presented in the regime $\Gamma_{\mathrm{T}}/m_{\mathrm{T}} < 50\%$, where the theory calculations are known to be valid.

Exp.$-2\sigma$ for the 95% CL exclusion limits on the universal coupling constant $\kappa$ as a function of the $T$ quark mass in the SU(2) doublet representations for the combination. Limits are only presented in the regime $\Gamma_{\mathrm{T}}/m_{\mathrm{T}} < 50\%$, where the theory calculations are known to be valid.

Obs.OSML 95% CL exclusion limits on the universal coupling constant $\kappa$ as a function of the $T$ quark mass in the SU(2) doublet representations for the combination. Limits are only presented in the regime $\Gamma_{\mathrm{T}}/m_{\mathrm{T}} < 50\%$, where the theory calculations are known to be valid.

Obs.HTZT 95% CL exclusion limits on the universal coupling constant $\kappa$ as a function of the $T$ quark mass in the SU(2) doublet representations for the combination. Limits are only presented in the regime $\Gamma_{\mathrm{T}}/m_{\mathrm{T}} < 50\%$, where the theory calculations are known to be valid.

Observed 95% CL upper limits on the scalar-mediated DM signal strength in the $(m_\phi, \lambda_q)$ plane. The observed (expected) 95% CL exclusion limits on the parameters are drawn as solid (dashed) lines.

Observed 95% CL upper limits on the scalar-mediated DM signal strength in the $(m_\phi, y_\chi)$ plane. The observed (expected) 95% CL exclusion limits on the parameters are drawn as solid (dashed) lines.

Observed 95% CL upper limits on the scalar-mediated DM signal strength in the $(m_\phi, m_\chi)$ plane. The observed (expected) 95% CL exclusion limits on the parameters are drawn as solid (dashed) lines.

Observed 95% CL upper limits on the vector-mediated DM signal strength in the $(m_V, g_\chi)$ plane. The observed (expected) 95% CL exclusion limits on the parameters are drawn as solid (dashed) lines.

Observed 95% CL upper limits on the vector-mediated DM signal strength in the $(m_V, a)$ plane. The observed (expected) 95% CL exclusion limits on the parameters are drawn as solid (dashed) lines.

Observed 95% CL upper limits on the vector-mediated DM signal strength in the $(m_V, m_\chi)$ plane. The observed (expected) 95% CL exclusion limits on the parameters are drawn as solid (dashed) lines.

Exclusion limits in terms of the universal coupling constant $\kappa_T$ and the $T$ quark mass in the singlet SU(2) scenario, in the regime where $\Gamma_T/m_T\leq50\%$, for which the theory calculations are known to be valid. Observed 95% CL upper limits on the $T$ quark signal strength as a function of $\kappa_T$ and the $T$ quark mass. The observed (expected) 95% CL exclusion limits on the parameters are drawn as solid (dashed) lines, with all values of $\kappa_T$ above the black contour line being excluded at each mass point.

Observed 95% CL exclusion limits on the $T$ quark mass in the singlet SU(2) scenario as a function of the relative resonance width $\Gamma_T/m_T$ and the relative coupling parameter $\xi_W$.

Observed 95% CL upper limit on the scalar DM mediator signal cross-section in the $(m_\phi, \lambda_q)$ plane. The observed (expected) 95% CL exclusion limits on the parameters are drawn as solid (dashed) lines.

Observed 95% CL upper limit on the scalar DM mediator signal cross-section in the $(m_\phi, y_\chi)$ plane. The observed (expected) 95% CL exclusion limits on the parameters are drawn as solid (dashed) lines.

Observed 95% CL upper limit on the scalar DM mediator signal cross-section in the $(m_\phi, m_\chi)$ plane. The observed (expected) 95% CL exclusion limits on the parameters are drawn as solid (dashed) lines.

Observed 95% CL upper limits on the vector-mediated DM signal cross-section in the $(m_V, g_\chi)$ plane. The observed (expected) 95% CL exclusion limits on the parameters are drawn as solid (dashed) lines.

Observed 95% CL upper limits on the vector-mediated DM signal cross-section in the $(m_V, a)$ plane. The observed (expected) 95% CL exclusion limits on the parameters are drawn as solid (dashed) lines.

Observed 95% CL upper limits on the vector-mediated DM signal cross-section in the $(m_V, m_\chi)$ plane. The observed (expected) 95% CL exclusion limits on the parameters are drawn as solid (dashed) lines.

Observed 95% CL exclusion limits on the production cross-section of single $T$ quark production as a function of $\kappa_T$ and the $T$ quark mass. Limits are only presented in the regime where $\Gamma_T/m_T\leq50\%$, for which the theory calculations are known to be valid.

Yields of the benchmark signal models of the analysis after preselection and each signal region cut. Three XGBoost classifiers have been trained separately to select each signal model. In addition, the signal regions for VLQ require a forward jet.

Expected and observed upper limits at 95% CL on the cross section of vector-like quark pair production for $B\bar{B}$ in the singlet model.

Expected and observed upper limits at 95% CL on the cross section of vector-like quark pair production for $T\bar{T}$ in the doublet model.

Expected and observed upper limits at 95% CL on the cross section of vector-like quark pair production, considereing both $T\bar{T}$ and $B\bar{B}$, in the $(T,B)$ doublet model.

Expected 95% CL lower limits on the vector-like top quark mass as a function of the branching ratios into $Wb$ and $Ht$.

Observed 95% CL lower limits on the vector-like top quark mass as a function of the branching ratios into $Wb$ and $Ht$.

Expected 95% CL lower limits on the vector-like bottom quark mass as a function of the branching ratios into $Hb$ and $Wt$.

Observed 95% CL lower limits on the vector-like top quark mass as a function of the branching ratios into $Hb$ and $Wt$.

Expected and observed combined limits at 95% CL on the production cross-section of vector-like T in an $(X,T)$ doublet (50% $T\rightarrow Zt$, 50% $T\rightarrow Ht$).

Expected and observed combined limits at 95% CL on the production cross-section of vector-like T in a $T$ singlet (50% $T\rightarrow Wb$, 25% $T\rightarrow Zt$, 25% $T\rightarrow Ht$).

Expected and observed combined limits at 95% CL on the production cross-section of vector-like B for 100% $B\rightarrow Zb$.

Expected and observed combined limits at 95% CL on the production cross-section of vector-like B in a $(B,Y)$ doublet (50% $B\rightarrow Zb$, 50% $B\rightarrow Hb$).

Expected and observed combined limits at 95% CL on the production cross-section of vector-like B in a B singlet (50% $B\rightarrow Wt$, 25% $B\rightarrow Zb$, 25% $B\rightarrow Hb$).

Distribution of the final discriminant after the combined background-only fit in the 2$\ell$ 2$b$ double-tag 1 signal region. The signal contribution is the expected distribution for a singlet TT with a mass of 1.2 TeV. The last bin contains overflow.

Distribution of the final discriminant after the combined background-only fit in the 2$\ell$ 2$b$ top-tag signal region. The signal contribution is the expected distribution for a singlet TT with a mass of 1.2 TeV. The last bin contains overflow.

Distribution of the final discriminant after the combined background-only fit in the 2$\ell$ 1$b$ $V$-tag signal region. The signal contribution is the expected distribution for a singlet TT with a mass of 1.2 TeV. The last bin contains overflow.

Distribution of the final discriminant after the combined background-only fit in the 2$\ell$ 1$b$ no-tag signal region. The signal contribution is the expected distribution for a singlet TT with a mass of 1.2 TeV. The last bin contains overflow.

Distribution of the final discriminant after the combined background-only fit in the 3$\ell$ $VV$ control region. The signal contribution is the expected distribution for a singlet TT with a mass of 1.2 TeV. The last bin contains overflow.

Distribution of the final discriminant after the combined background-only fit in the 3$\ell$ $H$-tag signal region. The signal contribution is the expected distribution for a singlet TT with a mass of 1.2 TeV. The last bin contains overflow.

Distribution of the final discriminant after the combined background-only fit in the 3$\ell$ top-tag signal region. The signal contribution is the expected distribution for a singlet TT with a mass of 1.2 TeV. The last bin contains overflow.

Distribution of the final discriminant after the combined background-only fit in the 2$\ell$ 1$b$ control region. The signal contribution is the expected distribution for a singlet TT with a mass of 1.2 TeV. The last bin contains overflow.

Distribution of the final discriminant after the combined background-only fit in the 2$\ell$ 2$b$ control region. The signal contribution is the expected distribution for a singlet TT with a mass of 1.2 TeV. The last bin contains overflow.

Summary of observed and predicted yields in the control regions and signal region categories. The background prediction is shown after the combined likelihood fit to data under the background-only hypothesis across all control region and signal region categories. The uncertainties include statistical and systematic uncertainties. Due to correlations, the total background uncertainty is not necessarily equal to the sum in quadrature of the uncertainties of the individual background processes. The expected yields for benchmark signals with mVLQ=1.2 TeV obtained by using their theoretical cross-sections are also shown with their pre-fit uncertainties. Dashes indicate negligible yields.

Summary of observed and predicted yields in the control regions and signal region categories. The background prediction is shown before the combined likelihood fit to data under the background-only hypothesis across all control region and signal region categories. The uncertainties include statistical and systematic uncertainties. The expected yields for benchmark signals with mVLQ=1.2 TeV obtained by using their theoretical cross sections are also shown with their pre-fit uncertainties. Dashes indicate negligible yields.

Summary of data and background yields in all analysis categories after the background-only fit. The expected yields for singlet TT̄ signal with mT=1.2 TeV are also shown for comparison. The bottom panel shows the ratio of the data over the total background prediction. The shaded band includes statistical and post-fit systematic uncertainties.