Figure 8. Gluino pair production cross section.

Table 1. Post-fit yields for the background-only fit, observed data, and expected yields for mgluino = 1600 GeV in each search bin.

Observed number of events and pre-fit background predictions in the $7\leq N_{jet}\leq8$ search bins.

Observed number of events and pre-fit background predictions in the $N_{jet}=9$ search bins.

Observed number of events and pre-fit background predictions in the aggregate search regions.

The expected 95% CL upper limits on the production cross sections for the T1tttt simplified models as a function of the gluino and LSP masses.

The expected 95% CL upper limits on the production cross sections plus uncertainty for the T1tttt simplified models as a function of the gluino and LSP masses.

The expected 95% CL upper limits on the production cross sections minus uncertainty for the T1tttt simplified models as a function of the gluino and LSP masses.

The observed 95% CL upper limits on the production cross sections for the T1tttt simplified models as a function of the gluino and LSP masses.

The observed 95% CL upper limits on the production cross sections plus uncertainty for the T1tttt simplified models as a function of the gluino and LSP masses.

The observed 95% CL upper limits on the production cross sections minus uncertainty for the T1tttt simplified models as a function of the gluino and LSP masses.

The expected 95% CL upper limits on the production cross sections for the T1tttt simplified models as a function of the gluino and LSP masses.

The observed 95% CL upper limits on the production cross sections for the T1tttt simplified models as a function of the gluino and LSP masses.

The expected 95% CL upper limits on the production cross sections for the T1bbbb simplified models as a function of the gluino and LSP masses.

The expected 95% CL upper limits on the production cross sections plus uncertainty for the T1bbbb simplified models as a function of the gluino and LSP masses.

The expected 95% CL upper limits on the production cross sections minus uncertainty for the T1bbbb simplified models as a function of the gluino and LSP masses.

The observed 95% CL upper limits on the production cross sections for the T1bbbb simplified models as a function of the gluino and LSP masses.

The observed 95% CL upper limits on the production cross sections plus uncertainty for the T1bbbb simplified models as a function of the gluino and LSP masses.

The observed 95% CL upper limits on the production cross sections minus uncertainty for the T1bbbb simplified models as a function of the gluino and LSP masses.

The expected 95% CL upper limits on the production cross sections for the T1bbbb simplified models as a function of the gluino and LSP masses.

The observed 95% CL upper limits on the production cross sections for the T1bbbb simplified models as a function of the gluino and LSP masses.

The expected 95% CL upper limits on the production cross sections for the T1qqqq simplified models as a function of the gluino and LSP masses.

The expected 95% CL upper limits on the production cross sections plus uncertainty for the T1qqqq simplified models as a function of the gluino and LSP masses.

The expected 95% CL upper limits on the production cross sections minus uncertainty for the T1qqqq simplified models as a function of the gluino and LSP masses.

The observed 95% CL upper limits on the production cross sections for the T1qqqq simplified models as a function of the gluino and LSP masses.

The observed 95% CL upper limits on the production cross sections plus uncertainty for the T1qqqq simplified models as a function of the gluino and LSP masses.

The observed 95% CL upper limits on the production cross sections minus uncertainty for the T1qqqq simplified models as a function of the gluino and LSP masses.

The expected 95% CL upper limits on the production cross sections for the T1qqqq simplified models as a function of the gluino and LSP masses.

The observed 95% CL upper limits on the production cross sections for the T1qqqq simplified models as a function of the gluino and LSP masses.

The expected 95% CL upper limits on the production cross sections for the T5qqqqVV simplified models as a function of the gluino and LSP masses.

The expected 95% CL upper limits on the production cross sections plus uncertainty for the T5qqqqVV simplified models as a function of the gluino and LSP masses.

The expected 95% CL upper limits on the production cross sections minus uncertainty for the T5qqqqVV simplified models as a function of the gluino and LSP masses.

The observed 95% CL upper limits on the production cross sections for the T5qqqqVV simplified models as a function of the gluino and LSP masses.

The observed 95% CL upper limits on the production cross sections plus uncertainty for the T5qqqqVV simplified models as a function of the gluino and LSP masses.

The observed 95% CL upper limits on the production cross sections minus uncertainty for the T5qqqqVV simplified models as a function of the gluino and LSP masses.

The expected 95% CL upper limits on the production cross sections for the T5qqqqVV simplified models as a function of the gluino and LSP masses.

The observed 95% CL upper limits on the production cross sections for the T5qqqqVV simplified models as a function of the gluino and LSP masses.

The expected 95% CL upper limits on the production cross sections for the T1tbtb simplified models as a function of the gluino and LSP masses.

The expected 95% CL upper limits on the production cross sections plus uncertainty for the T1tbtb simplified models as a function of the gluino and LSP masses.

The expected 95% CL upper limits on the production cross sections minus uncertainty for the T1tbtb simplified models as a function of the gluino and LSP masses.

The observed 95% CL upper limits on the production cross sections for the T1tbtb simplified models as a function of the gluino and LSP masses.

The observed 95% CL upper limits on the production cross sections plus uncertainty for the T1tbtb simplified models as a function of the gluino and LSP masses.

The observed 95% CL upper limits on the production cross sections minus uncertainty for the T1tbtb simplified models as a function of the gluino and LSP masses.

The expected 95% CL upper limits on the production cross sections for the T1tbtb simplified models as a function of the gluino and LSP masses.

The observed 95% CL upper limits on the production cross sections for the T1tbtb simplified models as a function of the gluino and LSP masses.

The observed 95% CL upper limits on the production cross sections for the T2tt simplified models as a function of the squark and LSP masses.

The observed 95% CL upper limits on the production cross sections plus uncertainty for the T2tt simplified models as a function of the squark and LSP masses.

The observed 95% CL upper limits on the production cross sections minus uncertainty for the T2tt simplified models as a function of the squark and LSP masses.

The expected 95% CL upper limits on the production cross sections for the T2tt simplified models as a function of the squark and LSP masses.

The expected 95% CL upper limits on the production cross sections plus uncertainty for the T2tt simplified models as a function of the squark and LSP masses.

The expected 95% CL upper limits on the production cross sections minus uncertainty for the T2tt simplified models as a function of the squark and LSP masses.

The expected 95% CL upper limits on the production cross sections for the T2tt simplified models as a function of the squark and LSP masses.

The observed 95% CL upper limits on the production cross sections for the T2tt simplified models as a function of the squark and LSP masses.

The expected 95% CL upper limits on the production cross sections for the T2bb simplified models as a function of the squark and LSP masses.

The expected 95% CL upper limits on the production cross sections plus uncertainty for the T2bb simplified models as a function of the squark and LSP masses.

The expected 95% CL upper limits on the production cross sections minus uncertainty for the T2bb simplified models as a function of the squark and LSP masses.

The observed 95% CL upper limits on the production cross sections for the T2bb simplified models as a function of the squark and LSP masses.

The observed 95% CL upper limits on the production cross sections plus uncertainty for the T2bb simplified models as a function of the squark and LSP masses.

The observed 95% CL upper limits on the production cross sections minus uncertainty for the T2bb simplified models as a function of the squark and LSP masses.

The expected 95% CL upper limits on the production cross sections for the T2bb simplified models as a function of the squark and LSP masses.

The observed 95% CL upper limits on the production cross sections for the T2bb simplified models as a function of the squark and LSP masses.

The observed 95% CL upper limits on the production cross sections for the T2qq simplified models as a function of the squark and LSP masses.

The observed 95% CL upper limits on the production cross sections plus uncertainty for the T2qq simplified models as a function of the squark and LSP masses.

The observed 95% CL upper limits on the production cross sections minus uncertainty for the T2qq simplified models as a function of the squark and LSP masses.

The expected 95% CL upper limits on the production cross sections for the T2qq simplified models as a function of the squark and LSP masses.

The expected 95% CL upper limits on the production cross sections plus uncertainty for the T2qq simplified models as a function of the squark and LSP masses.

The expected 95% CL upper limits on the production cross sections minus uncertainty for the T2qq simplified models as a function of the squark and LSP masses.

The expected 95% CL upper limits on the production cross sections for the T2qq simplified models as a function of the squark and LSP masses.

The observed 95% CL upper limits on the production cross sections for the T2qq simplified models as a function of the squark and LSP masses.

Observed exclusion contour at 95% CL for the T6gg model.

Expected exclusion contour at 95% CL for the T6gg model.

Exclusion limits on the SUSY cross section at 95% CL for the T6Wg model.

Observed exclusion contour at 95% CL for the T6Wg model.

Expected exclusion contour at 95% CL for the T6Wg model.

Exclusion limits on the SUSY cross section at 95% CL for the T5gg model.

Observed exclusion contour at 95% CL for the T5gg model.

Expected exclusion contour at 95% CL for the T5gg model.

Exclusion limits on the SUSY cross section at 95% CL for the T5Wg model.

Observed exclusion contour at 95% CL for the T5Wg model.

Expected exclusion contour at 95% CL for the T5Wg model.

The observed upper limit on the cross section times branching fraction at 95% CL for direct top squark pair production with decay $\widetilde{t}\widetilde{t} \rightarrow t \widetilde{\chi_1^0} t \widetilde{\chi_1^0}$.

The observed exclusion limits at 95% CL assuming 100% branching fraction for direct top squark pair production with decay $\widetilde{t}\widetilde{t} \rightarrow b \chi_1^{+} \bar{b} \chi+1^{-}$, $\chi_1^{\pm}\rightarrow W^{\pm} \widetilde{\chi_1^{0}}$

The observed upper limit on the cross section times branching fraction at 95% CL for direct top squark pair production with decay $\widetilde{t}\widetilde{t} \rightarrow b \chi_1^{+} \bar{b} \chi+1^{-}$, $\chi_1^{\pm}\rightarrow W^{\pm} \widetilde{\chi_1^{0}}$

The observed exclusion limits at 95% CL for direct top squark pair production with decay $\widetilde{t}\widetilde{t} \rightarrow b \chi_1^{+} \bar{t} \widetilde{\chi_1^0}$, $\chi_1^{\pm}\rightarrow W^{\pm} \widetilde{\chi_1^{0}}$ assuming a 50% branching fraction for each $\widetilde{t}$ decay.

The observed upper limit on the cross section at 95% CL for direct top squark pair production with decay $\widetilde{t}\widetilde{t} \rightarrow b \chi_1^{+} \bar{t} \widetilde{\chi_1^0}$, $\chi_1^{\pm}\rightarrow W^{\pm} \widetilde{\chi_1^{0}}$ assuming a 50% branching fraction for each $\widetilde{t}$ decay.

Correlation matrix for the background predictions for the signal regions for the standard selection. The labelling of the regions follows the convention of Fig.~4 in the paper.

Correlation matrix for the background predictions for the signal regions for the compressed selection. The labelling of the regions follows the convention of Fig.~4 in the paper.

Figure 2. -1 sigma excluded gluino and neutralino masses at 95% CL for the T1tttt.

Figure 2. Expected exclusion for the T1tttt model.

Figure 2. +1 sigma expected exclusion for the T1tttt model.

Figure 2. -1 sigma expected exclusion for the T1tttt model.

Figure 2. Excluded gluino and neutralino masses at 95% CL for the T5tttt.

Figure 2. Expected exclusion for the T5tttt model.

Table 1. Observed event yields and mean background yields from the predictive fit in the 18 bins of the signal region R4.

Table 2. Observed event yields and mean background yields from the predictive fit in four aggregate search bins.

Figure 9a (upper left). The 95% CL upper limit on the production cross section of the T1tttt simplified models as a function of the gluino and LSP masses.

Figure 9a (upper left). Observed exclusion region at 95% CL assuming 100% branching fraction.

Figure 9a (upper left). Expected exclusion region at 95% CL assuming 100% branching fraction.

Figure 9b (upper right). The 95% CL upper limit on the production cross section of the T1ttbb simplified models as a function of the gluino and LSP masses.

Figure 9b (upper right). Observed exclusion region at 95% CL.

Figure 9b (upper right). Expected exclusion region at 95%.

Figure 9c (bottom left). The 95% CL upper limit on the production cross section of the T5tttt simplified models as a function of the gluino and LSP masses. imits are not given for the T5tttt model for mχ~01< 50 GeV for the reason stated in the text.

Figure 9c (bottom left). Observed exclusion region at 95% CL assuming 100% branching fraction.

Figure 9c (bottom left). Expected exclusion region at 95% CL assuming 100% branching fraction.

Figure 9d (bottom right). The 95% CL upper limit on the production cross section of the T5ttcc simplified models as a function of the gluino and LSP masses.

Figure 9d (bottom right). Observed exclusion region at 95% CL.

Figure 9d (bottom right). Expected exclusion region at 95% CL.

The observed number of events and the total background prediction for search regions with Nt = 1 and Nb = 1.

The observed number of events and the total background prediction for search regions with Nt = 1 and Nb ≥ 2.

The observed number of events and the total background prediction for search regions with Nt ≥ 2.

Selected T2tt signal yields for the aggregate search bins.

Selected gluino mediated signal yields for the aggregate search bins.

Gluino - neutralino mass points lying on the observed exclusion contour of T5qqqqHG model.

Gluino - neutralino mass points lying on the observed $+1\sigma_{theory}$ exclusion contour of T5qqqqHG model.

Gluino - neutralino mass points lying on the observed $-1\sigma_{theory}$ exclusion contour of T5qqqqHG model.

Gluino - neutralino mass points lying on the expected exclusion contour of T5qqqqHG model.

Gluino - neutralino mass points lying on the expected $+1\sigma_{exp}$ exclusion contour of T5qqqqHG model.

Gluino - neutralino mass points lying on the expected $-1\sigma_{exp}$ exclusion contour of T5qqqqHG model.

Observed $95\%$ CL upper limit on the production cross section of gluinos in T5bbbbZG model.

Expected $95\%$ CL upper limit on the production cross section of gluinos in T5bbbbZG model.

Gluino - neutralino mass points lying on the observed exclusion contour of T5qqqqHG model.

Gluino - neutralino mass points lying on the observed $+1\sigma_{theory}$ exclusion contour of T5qqqqHG model.

Gluino - neutralino mass points lying on the observed $-1\sigma_{theory}$ exclusion contour of T5qqqqHG model.

Gluino - neutralino mass points lying on the expected exclusion contour of T5qqqqHG model.

Gluino - neutralino mass points lying on the expected $+1\sigma_{exp}$ exclusion contour of T5qqqqHG model.

Gluino - neutralino mass points lying on the expected $-1\sigma_{exp}$ exclusion contour of T5qqqqHG model.

Observed $95\%$ CL upper limit on the production cross section of gluinos in T5ttttZG model.

Expected $95\%$ CL upper limit on the production cross section of gluinos in T5ttttZG model.

Gluino - neutralino mass points lying on the observed exclusion contour of T5qqqqHG model.

Gluino - neutralino mass points lying on the observed $+1\sigma_{theory}$ exclusion contour of T5qqqqHG model.

Gluino - neutralino mass points lying on the observed $-1\sigma_{theory}$ exclusion contour of T5qqqqHG model.

Gluino - neutralino mass points lying on the expected exclusion contour of T5qqqqHG model.

Gluino - neutralino mass points lying on the expected $+1\sigma_{exp}$ exclusion contour of T5qqqqHG model.

Gluino - neutralino mass points lying on the expected $-1\sigma_{exp}$ exclusion contour of T5qqqqHG model.

Observed $95\%$ CL upper limit on the production cross section of gluinos in T6ttZG model.

Expected $95\%$ CL upper limit on the production cross section of gluinos in T6ttZG model.

Stop - neutralino mass points lying on the observed exclusion contour of T5qqqqHG model.

Stop - neutralino mass points lying on the observed $+1\sigma_{theory}$ exclusion contour of T5qqqqHG model.

Stop - neutralino mass points lying on the observed $-1\sigma_{theory}$ exclusion contour of T5qqqqHG model.

Stop - neutralino mass points lying on the expected exclusion contour of T5qqqqHG model.

Stop - neutralino mass points lying on the expected $+1\sigma_{exp}$ exclusion contour of T5qqqqHG model.

Stop - neutralino mass points lying on the expected $-1\sigma_{exp}$ exclusion contour of T5qqqqHG model.

Covariance among different search bins.

Correlation among different search bins.

Cutflow table for a few signal models. Yields are normalized to integrated luminosity.

The ratio between the observed data and the simulation in the high $\Delta$m portion of the $\ell+\text{jets}$ control region as a function of $p_T^{miss}$ after scaling the simulation to match the total yield in data.

Comparison between data and simulation in the high $\Delta$m portion of the $\ell+\text{jets}$ control region as a function of $N_t$ after scaling the simulation to match the total yield in data. The hatched region indicates the total shape uncertainty in the simulation.

The ratio between the observed data and the simulation in the high $\Delta$m portion of the $\ell+\text{jets}$ control region as a function of $N_t$ after scaling the simulation to match the total yield in data.

Comparison between data and simulation in the high $\Delta$m portion of the $\ell+\text{jets}$ control region as a function of $N_W$ after scaling the simulation to match the total yield in data. The hatched region indicates the total shape uncertainty in the simulation.

The ratio between the observed data and the simulation in the high $\Delta$m portion of the $\ell+\text{jets}$ control region as a function of $N_W$ after scaling the simulation to match the total yield in data.

Comparison between data and simulation in the high $\Delta$m portion of the $\ell+\text{jets}$ control region as a function of $N_{\text{res}}$ after scaling the simulation to match the total yield in data. The hatched region indicates the total shape uncertainty in the simulation.

The ratio between the observed data and the simulation in the high $\Delta$m portion of the $\ell+\text{jets}$ control region as a function of $N_{\text{res}}$ after scaling the simulation to match the total yield in data.

Observed event yields in data (black points) and predicted SM background (filled histograms) for the low $\Delta$m search bins 0--52. The signal models are denoted in the legend with the masses in GeV of the SUSY particles in parentheses: $(m_{\tilde{t}}, m_{\tilde{\chi}^0_1})$ or $(m_{\tilde{g}}, m_{\tilde{\chi}^0_1})$ for the T2 or T1 signal models, respectively. The hatched bands correspond to the total uncertainty in the background prediction. The (unstacked) distributions for two example signal models are also shown.

The ratio of the data to the total background prediction for the low $\Delta$m search bins 0--52. The hatched bands correspond to the total uncertainty in the background prediction.

Observed event yields in data (black points) and predicted SM background (filled histograms) for the high $\Delta$m search bins 53--104. The signal models are denoted in the legend with the masses in GeV of the SUSY particles in parentheses: $(m_{\tilde{t}}, m_{\tilde{\chi}^0_1})$ or $(m_{\tilde{g}}, m_{\tilde{\chi}^0_1})$ for the T2 or T1 signal models, respectively. The hatched bands correspond to the total uncertainty in the background prediction. The (unstacked) distributions for two example signal models are also shown.

The ratio of the data to the total background prediction for the high $\Delta$m search bins 53--104. The hatched bands correspond to the total uncertainty in the background prediction.

Observed event yields in data (black points) and predicted SM background (filled histograms) for the high $\Delta$m search bins 105--152 with ${N_b = 2}$. The signal models are denoted in the legend with the masses in GeV of the SUSY particles in parentheses: $(m_{\tilde{t}}, m_{\tilde{\chi}^0_1})$ or $(m_{\tilde{g}}, m_{\tilde{\chi}^0_1})$ for the T2 or T1 signal models, respectively. The hatched bands correspond to the total uncertainty in the background prediction. The (unstacked) distributions for two example signal models are also shown.

The ratio of the data to the total background prediction for the high $\Delta$m search bins 105--152 with ${N_b = 2}$. The hatched bands correspond to the total uncertainty in the background prediction.

Observed event yields in data (black points) and predicted SM background (filled histograms) for the high $\Delta$m search bins 153--182 with ${N_b \geq 3}$. The signal models are denoted in the legend with the masses in GeV of the SUSY particles in parentheses: $(m_{\tilde{t}}, m_{\tilde{\chi}^0_1})$ or $(m_{\tilde{g}}, m_{\tilde{\chi}^0_1})$ for the T2 or T1 signal models, respectively. The hatched bands correspond to the total uncertainty in the background prediction. The (unstacked) distributions for two example signal models are also shown.

The ratio of the data to the total background prediction for the high $\Delta$m search bins 153--182 with ${N_b \geq 3}$. The hatched bands correspond to the total uncertainty in the background prediction.

The observed 95% CL upper limit on the production cross section of the T2tt simplified model as a function of the top squark and LSP masses. No interpretation is provided for signal models for which ${|{m_{\tilde{t}} - m_{\tilde{\chi}^0_1} - m_t}| < 25 GeV}$ and ${m_{\tilde{t}} < 275 GeV}$ as described in the text.

The expected 95% CL upper limit on the production cross section of the T2tt simplified model as a function of the top squark and LSP masses. No interpretation is provided for signal models for which ${|{m_{\tilde{t}} - m_{\tilde{\chi}^0_1} - m_t}| < 25 GeV}$ and ${m_{\tilde{t}} < 275 GeV}$ as described in the text.

The observed exclusion contour of the T2tt simplified model with respect to approximate NNLO+NNLL signal cross sections and the change in this contour due to variation of these cross sections within their theoretical uncertainties ($\sigma_{\text{theory}}$). No interpretation is provided for signal models for which ${|{m_{\tilde{t}} - m_{\tilde{\chi}^0_1} - m_t}| < 25 GeV}$ and ${m_{\tilde{t}} < 275 GeV}$ as described in the text.

The mean expected exclusion contour of the T2tt simplified model and the region containing 68 and 95\% ($\pm 1$ and $2\,\sigma_{\text{experiment}}$) of the distribution of expected exclusion limits under the background-only hypothesis. No interpretation is provided for signal models for which ${|{m_{\tilde{t}} - m_{\tilde{\chi}^0_1} - m_t}| < 25 GeV}$ and ${m_{\tilde{t}} < 275 GeV}$ as described in the text.

The observed 95% CL upper limit on the production cross section of the T2bW simplified model as a function of the top squark and LSP masses.

The expected 95% CL upper limit on the production cross section of the T2bW simplified model as a function of the top squark and LSP masses.

The observed exclusion contour of the T2bW simplified model with respect to approximate NNLO+NNLL signal cross sections and the change in this contour due to variation of these cross sections within their theoretical uncertainties ($\sigma_{\text{theory}}$).

The mean expected exclusion contour of the T2bW simplified model and the region containing 68 and 95\% ($\pm 1$ and $2\,\sigma_{\text{experiment}}$) of the distribution of expected exclusion limits under the background-only hypothesis.

The observed 95% CL upper limit on the production cross section of the T2tb simplified model as a function of the top squark and LSP masses.

The expected 95% CL upper limit on the production cross section of the T2tb simplified model as a function of the top squark and LSP masses.

The observed exclusion contour of the T2tb simplified model with respect to approximate NNLO+NNLL signal cross sections and the change in this contour due to variation of these cross sections within their theoretical uncertainties ($\sigma_{\text{theory}}$).

The mean expected exclusion contour of the T2tb simplified model and the region containing 68 and 95\% ($\pm 1$ and $2\,\sigma_{\text{experiment}}$) of the distribution of expected exclusion limits under the background-only hypothesis.

The observed 95% CL upper limit on the production cross section of the T2ttC simplified model as a function of the top squark mass and the difference between the top squark and LSP masses.

The expected 95% CL upper limit on the production cross section of the T2ttC simplified model as a function of the top squark mass and the difference between the top squark and LSP masses.

The observed exclusion contour of the T2ttC simplified model with respect to approximate NNLO+NNLL signal cross sections and the change in this contour due to variation of these cross sections within their theoretical uncertainties ($\sigma_{\text{theory}}$).

The mean expected exclusion contour of the T2ttC simplified model and the region containing 68\% ($\pm 1\,\sigma_{\text{experiment}}$) of the distribution of expected exclusion limits under the background-only hypothesis.

The observed 95% CL upper limit on the production cross section of the T2bWC simplified model as a function of the top squark mass and the difference between the top squark and LSP masses.

The expected 95% CL upper limit on the production cross section of the T2bWC simplified model as a function of the top squark mass and the difference between the top squark and LSP masses.

The observed exclusion contour of the T2bWC simplified model with respect to approximate NNLO+NNLL signal cross sections and the change in this contour due to variation of these cross sections within their theoretical uncertainties ($\sigma_{\text{theory}}$).

The mean expected exclusion contour of the T2bWC simplified model and the region containing 68\% ($\pm 1\,\sigma_{\text{experiment}}$) of the distribution of expected exclusion limits under the background-only hypothesis.

The observed 95% CL upper limit on the production cross section of the T2cc simplified model as a function of the top squark mass and the difference between the top squark and LSP masses.

The expected 95% CL upper limit on the production cross section of the T2cc simplified model as a function of the top squark mass and the difference between the top squark and LSP masses.

The observed exclusion contour of the T2cc simplified model with respect to approximate NNLO+NNLL signal cross sections and the change in this contour due to variation of these cross sections within their theoretical uncertainties ($\sigma_{\text{theory}}$).

The mean expected exclusion contour of the T2cc simplified model and the region containing 68\% ($\pm 1\,\sigma_{\text{experiment}}$) of the distribution of expected exclusion limits under the background-only hypothesis.

The observed 95% CL upper limit on the production cross section of the T1tttt simplified model as a function of the gluino and LSP masses.

The expected 95% CL upper limit on the production cross section of the T1tttt simplified model as a function of the gluino and LSP masses.

The observed exclusion contour of the T1tttt simplified model with respect to approximate NNLO+NNLL signal cross sections and the change in this contour due to variation of these cross sections within their theoretical uncertainties ($\sigma_{\text{theory}}$).

The mean expected exclusion contour of the T1tttt simplified model and the region containing 68 and 95\% ($\pm 1$ and $2\,\sigma_{\text{experiment}}$) of the distribution of expected exclusion limits under the background-only hypothesis.

The observed 95% CL upper limit on the production cross section of the T1ttbb simplified model as a function of the gluino and LSP masses.

The expected 95% CL upper limit on the production cross section of the T1ttbb simplified model as a function of the gluino and LSP masses.

The observed exclusion contour of the T1ttbb simplified model with respect to approximate NNLO+NNLL signal cross sections and the change in this contour due to variation of these cross sections within their theoretical uncertainties ($\sigma_{\text{theory}}$).

The mean expected exclusion contour of the T1ttbb simplified model and the region containing 68 and 95\% ($\pm 1$ and $2\,\sigma_{\text{experiment}}$) of the distribution of expected exclusion limits under the background-only hypothesis.

The observed 95% CL upper limit on the production cross section of the T5ttcc simplified model as a function of the gluino and LSP masses. The upper limits do not take into account contributions from direct top squark pair production; however, its effect is small for $m_{\tilde{\chi}^0_1} > 600 GeV$, which corresponds to the phase space beyond the exclusions based on direct top squark pair production. The excluded regions based on direct top squark pair production from this search and earlier searches are indicated by the hatched areas.

The expected 95% CL upper limit on the production cross section of the T5ttcc simplified model as a function of the gluino and LSP masses. The uppser limits do not take into account contributions from direct top squark pair production; however, its effect is small for $m_{\tilde{\chi}^0_1} > 600 GeV$, which corresponds to the phase space beyond the exclusions based on direct top squark pair production. The excluded regions based on direct top squark pair production from this search and earlier searches are indicated by the hatched areas.

The observed exclusion contour of the T5ttcc simplified model with respect to approximate NNLO+NNLL signal cross sections and the change in this contour due to variation of these cross sections within their theoretical uncertainties ($\sigma_{\text{theory}}$). The expected and observed upper limits do not take into account contributions from direct top squark pair production; however, its effect is small for $m_{\tilde{\chi}^0_1} > 600 GeV$, which corresponds to the phase space beyond the exclusions based on direct top squark pair production. The excluded regions based on direct top squark pair production from this search and earlier searches are indicated by the hatched areas.

The mean expected exclusion contour of the T5ttcc simplified model and the region containing 68% and 95% ($\pm 1$ and $2\,\sigma_{\text{experiment}}$) of the distribution of expected exclusion limits under the background-only hypothesis. The expected and observed upper limits do not take into account contributions from direct top squark pair production; however, its effect is small for $m_{\tilde{\chi}^0_1} > 600 GeV$, which corresponds to the phase space beyond the exclusions based on direct top squark pair production. The excluded regions based on direct top squark pair production from this search and earlier searches are indicated by the hatched areas.

The post-fit distribution of the $M(\ell\ell)$ variable is shown for the high-MET bin for the $\text{t}\bar{\text{t}}$ CR. Uncertainties include both the statistical and systematic components.

The post-fit distribution of the $M(\ell\ell)$ variable is shown for the low-MET bin for the WZ-enriched region. Uncertainties include both the statistical and systematic components.

The post-fit distribution of the $M(\ell\ell)$ variable is shown for the high-MET bin for the WZ-enriched region. Uncertainties include both the statistical and systematic components.

The post-fit distribution of the $M(\ell\ell)$ variable is shown for the high-MET bin for the SS CR. Uncertainties include both the statistical and systematic components.

The 2$\ell$-Ewk SR: the post-fit distribution of the $M(\ell\ell)$ variable is shown for the low-MET bin. Uncertainties include both the statistical and systematic components. The signal distributions overlaid on the plot are from the TChiWZ and the simplified higgsino models in the scenario where the product of $\widetilde{m}_{\tilde{\chi}^0_2}\widetilde{m}_{\tilde{\chi}^0_1}$ eigenvalues is positive and negative, respectively. The numbers after the model name in the legend indicate the mass of the NLSP and the mass splitting between the NLSP and LSP, in GeV.

The 2$\ell$-Ewk SR: the post-fit distribution of the $M(\ell\ell)$ variable is shown for the med-MET bin. Uncertainties include both the statistical and systematic components. The signal distributions overlaid on the plot are from the TChiWZ and the simplified higgsino models in the scenario where the product of $\widetilde{m}_{\tilde{\chi}^0_2}\widetilde{m}_{\tilde{\chi}^0_1}$ eigenvalues is positive and negative, respectively. The numbers after the model name in the legend indicate the mass of the NLSP and the mass splitting between the NLSP and LSP, in GeV.

The 2$\ell$-Ewk SR: the post-fit distribution of the $M(\ell\ell)$ variable is shown for the high-MET bin. Uncertainties include both the statistical and systematic components. The signal distributions overlaid on the plot are from the TChiWZ and the simplified higgsino models in the scenario where the product of $\widetilde{m}_{\tilde{\chi}^0_2}\widetilde{m}_{\tilde{\chi}^0_1}$ eigenvalues is positive and negative, respectively. The numbers after the model name in the legend indicate the mass of the NLSP and the mass splitting between the NLSP and LSP, in GeV.

The 2$\ell$-Ewk SR: the post-fit distribution of the $M(\ell\ell)$ variable is shown for the ultra-MET bin. Uncertainties include both the statistical and systematic components. The signal distributions overlaid on the plot are from the TChiWZ and the simplified higgsino models in the scenario where the product of $\widetilde{m}_{\tilde{\chi}^0_2}\widetilde{m}_{\tilde{\chi}^0_1}$ eigenvalues is positive and negative, respectively. The numbers after the model name in the legend indicate the mass of the NLSP and the mass splitting between the NLSP and LSP, in GeV.

The 3$\ell$-Ewk search regions: the post-fit distribution of the $M^{\text{min}}_{\text{SFOS}}(\ell\ell)$ variable is shown for the low-MET bin. Uncertainties include both the statistical and systematic components. The signal distributions overlaid on the plot are from the TChiWZ and the simplified higgsino models in the scenario where the product of $\widetilde{m}_{\tilde{\chi}^0_2}\widetilde{m}_{\tilde{\chi}^0_1}$ eigenvalues is positive and negative, respectively. The numbers after the model name in the legend indicate the mass of the NLSP and the mass splitting between the NLSP and LSP, in GeV.

The 3$\ell$-Ewk search regions: the post-fit distribution of the $M^{\text{min}}_{\text{SFOS}}(\ell\ell)$ variable is shown for the high-MET bin. Uncertainties include both the statistical and systematic components. The signal distributions overlaid on the plot are from the TChiWZ and the simplified higgsino models in the scenario where the product of $\widetilde{m}_{\tilde{\chi}^0_2}\widetilde{m}_{\tilde{\chi}^0_1}$ eigenvalues is positive and negative, respectively. The numbers after the model name in the legend indicate the mass of the NLSP and the mass splitting between the NLSP and LSP, in GeV.

The 2$\ell$-Stop SR: the post-fit distribution of the leading lepton $p_{T}$ variable is shown for the low-MET bin. Uncertainties include both the statistical and systematic components. The signal distributions overlaid on the plot are from the T2bff$\tilde{\chi}^0_1$ and the T2bW models. The numbers after the model name in the legend indicate the mass of the top squark and the mass splitting between the top squark and LSP, in GeV.

The 2$\ell$-Stop SR: the post-fit distribution of the leading lepton $p_{T}$ variable is shown for the med-MET bin. Uncertainties include both the statistical and systematic components. The signal distributions overlaid on the plot are from the T2bff$\tilde{\chi}^0_1$ and the T2bW models. The numbers after the model name in the legend indicate the mass of the top squark and the mass splitting between the top squark and LSP, in GeV.

The 2$\ell$-Stop SR: the post-fit distribution of the leading lepton $p_{T}$ variable is shown for the high-MET bin. Uncertainties include both the statistical and systematic components. The signal distributions overlaid on the plot are from the T2bff$\tilde{\chi}^0_1$ and the T2bW models. The numbers after the model name in the legend indicate the mass of the top squark and the mass splitting between the top squark and LSP, in GeV.

The 2$\ell$-Stop SR: the post-fit distribution of the leading lepton $p_{T}$ variable is shown for the ultra-MET bin. Uncertainties include both the statistical and systematic components. The signal distributions overlaid on the plot are from the T2bff$\tilde{\chi}^0_1$ and the T2bW models. The numbers after the model name in the legend indicate the mass of the top squark and the mass splitting between the top squark and LSP, in GeV.

The observed 95% CL exclusion contours (black curves) assuming the NLO+NLL cross sections, with the variations (thin lines) corresponding to the uncertainty in the cross section for the TChiWZ model. The red curves present the 95% CL expected limits with the band (thin lines) covering 68% of the limits in the absence of signal. Results are reported for the $\widetilde{m}_{\tilde{\chi}^0_2} \widetilde{m}_{\tilde{\chi}^0_1} > 0$ $M(\ell\ell)$ spectrum reweighting scenario. The range of luminosities of the analysis regions included in the fit is indicated on the plot.

The observed 95% CL exclusion contours (black curves) assuming the NLO+NLL cross sections, with the variations (thin lines) corresponding to the uncertainty in the cross section for the TChiWZ model. The red curves present the 95% CL expected limits with the band (thin lines) covering 68% of the limits in the absence of signal. Results are reported for the $\widetilde{m}_{\tilde{\chi}^0_2} \widetilde{m}_{\tilde{\chi}^0_1} < 0$ $M(\ell\ell)$ spectrum reweighting scenario. The range of luminosities of the analysis regions included in the fit is indicated on the plot.

The observed 95% CL exclusion contours (black curves) assuming the NLO+NLL cross sections, with the variations (thin lines) corresponding to the uncertainty in the cross section for the simplified higgsino model. The simplified model includes both neutralino pair and neutralino-chargino production modes. The red curves present the 95% CL expected limits with the band (thin lines) covering 68% of the limits in the absence of signal. The results are reported for the $\widetilde{m}_{\tilde{\chi}^0_2}\widetilde{m}_{\tilde{\chi}^0_1}$ $M(\ell\ell)$ spectrum reweighting scenario. The range of luminosities of the analysis regions included in the fit is indicated on the plot.

The observed 95% CL exclusion contours (black curves) assuming the NLO+NLL cross sections, with the variations (thin lines) corresponding to the uncertainty in the cross section for the pMSSM higgsino model. The pMSSM one includes all possible production modes. The red curves present the 95% CL expected limits with the band (thin lines) covering 68% of the limits in the absence of signal. The results are reported for the $\widetilde{m}_{\tilde{\chi}^0_2}\widetilde{m}_{\tilde{\chi}^0_1}$ $M(\ell\ell)$ spectrum reweighting scenario. The range of luminosities of the analysis regions included in the fit is indicated on the plot.

The observed 95% CL exclusion contours (black curves) assuming the NLO+NLL cross sections, with the variations (thin lines) corresponding to the uncertainty in the cross section for the T2bff$\tilde{\chi}^0_1$ simplified model. The red curves present the 95% CL expected limits with the band (thin lines) covering 68% of the limits in the absence of signal. The range of luminosities of the analysis regions included in the fit is indicated on the plot.

The observed 95% CL exclusion contours (black curves) assuming the NLO+NLL cross sections, with the variations (thin lines) corresponding to the uncertainty in the cross section for the T2bW simplified model. The red curves present the 95% CL expected limits with the band (thin lines) covering 68% of the limits in the absence of signal. The range of luminosities of the analysis regions included in the fit is indicated on the plot.