CERN Accelerating science

Comparison between true and predicted \JZB distributions in simulated samples for the background-only (\cmsLeft) and LM4-plus-background (\cmsRight) hypotheses. ``MC B'' and ``MC S'' denote the background and signal contributions to the true distribution, respectively. The lower plots show the ratio between true and predicted distributions. The error bars on the true distribution and in the ratio indicate the statistical uncertainty only.

Comparison between true and predicted \JZB distributions in simulated samples for the background-only (\cmsLeft) and LM4-plus-background (\cmsRight) hypotheses. ``MC B'' and ``MC S'' denote the background and signal contributions to the true distribution, respectively. The lower plots show the ratio between true and predicted distributions. The error bars on the true distribution and in the ratio indicate the statistical uncertainty only.

Comparison between the measured \JZB\ distribution in the $\JZB>0$ region and that predicted from data control samples. The distribution from the LM4 MC is overlaid. The bottom plot shows the ratio between the observed and predicted distributions. The error bars indicate the statistical uncertainties in data only.

\protect The observed \MET distribution for events with \njets\ $\ge$ 2 (\cmsLeft) and \njets\ $\ge$ 3 (\cmsRight) for data (black points), predicted OF background from simulation normalized to the $\Pe\mu$ yield in data (solid dark purple histogram), $\PW\Z+\Z\Z$ background (solid light green histogram), and total background including the \zjets\ predicted from \gjets\ (red line) and QCD (blue line) \MET\ templates. The ratio of the observed and total predicted yields (data/pred) is indicated in the bottom plots using the \gjets\ (\cmsLeft) and average of the \gjets\ and QCD (\cmsRight) methods. The error bars indicate the statistical uncertainties in data only.

\protect The observed \MET distribution for events with \njets\ $\ge$ 2 (\cmsLeft) and \njets\ $\ge$ 3 (\cmsRight) for data (black points), predicted OF background from simulation normalized to the $\Pe\mu$ yield in data (solid dark purple histogram), $\PW\Z+\Z\Z$ background (solid light green histogram), and total background including the \zjets\ predicted from \gjets\ (red line) and QCD (blue line) \MET\ templates. The ratio of the observed and total predicted yields (data/pred) is indicated in the bottom plots using the \gjets\ (\cmsLeft) and average of the \gjets\ and QCD (\cmsRight) methods. The error bars indicate the statistical uncertainties in data only.

Simplified model for the production of two gluinos decaying into two \Z bosons, two $\chiz_1$ particles, and jets.

\footnotesize Limits on the SMS topology described in the text, based on the \JZB method: (\cmsLeft) signal efficiency times acceptance normalized to the number of events with at least one $\Z\to\ell\ell$ decay for the $\JZB>150\GeV$ region; (\cmsRight) 95\% CL upper limits on the total gluino pair-production cross section. The region to the left of the solid contour is excluded assuming that the gluino pair-production cross section is $\sigma^{\text{NLO-QCD}}$, and that the branching fraction to this SMS topology is 100\%. The dotted and dashed contours indicate the excluded region when the cross section is varied by a factor of three. The signal contribution to the control regions is taken into account.

\footnotesize Limits on the SMS topology described in the text, based on the \JZB method: (\cmsLeft) signal efficiency times acceptance normalized to the number of events with at least one $\Z\to\ell\ell$ decay for the $\JZB>150\GeV$ region; (\cmsRight) 95\% CL upper limits on the total gluino pair-production cross section. The region to the left of the solid contour is excluded assuming that the gluino pair-production cross section is $\sigma^{\text{NLO-QCD}}$, and that the branching fraction to this SMS topology is 100\%. The dotted and dashed contours indicate the excluded region when the cross section is varied by a factor of three. The signal contribution to the control regions is taken into account.

\footnotesize Limits on the SMS topology described in the text, based on the \MET\ template method: (\cmsLeft) signal efficiency times acceptance normalized to the number of events with at least one $\Z\to\ell\ell$ decay for the $\MET>100\GeV$ region; (\cmsRight) 95\% CL upper limits on the total gluino pair-production cross section. The region to the left of the solid contour is excluded assuming that the gluino pair-production cross section is $\sigma^{\text{NLO-QCD}}$, and that the branching fraction to this SMS topology is 100\%. The dotted and dashed contours indicate the excluded region when the cross section is varied by a factor of three. The signal contribution to the control regions is negligible.

\footnotesize Limits on the SMS topology described in the text, based on the \MET\ template method: (\cmsLeft) signal efficiency times acceptance normalized to the number of events with at least one $\Z\to\ell\ell$ decay for the $\MET>100\GeV$ region; (\cmsRight) 95\% CL upper limits on the total gluino pair-production cross section. The region to the left of the solid contour is excluded assuming that the gluino pair-production cross section is $\sigma^{\text{NLO-QCD}}$, and that the branching fraction to this SMS topology is 100\%. The dotted and dashed contours indicate the excluded region when the cross section is varied by a factor of three. The signal contribution to the control regions is negligible.

Reconstructed \JZB (\cmsLeft) and \MET\ (\cmsRight) selection efficiencies as a function of the generator-level quantity, for the different signal regions in the LM4 simulation.

Reconstructed \JZB (\cmsLeft) and \MET\ (\cmsRight) selection efficiencies as a function of the generator-level quantity, for the different signal regions in the LM4 simulation.

Simplified model for the production of two gluinos decaying into two \Z bosons, two gravitinos, and jets.

\footnotesize Limits on the SMS topology with neutralino LSP ($x=0.75$), based on the \JZB method: (left) signal efficiency times acceptance normalized to the number of events with at least one $Z\to\ell\ell$ decay for the $\JZB>150\GeV$ region; (right) 95\% CL upper limits on the total gluino pair-production cross section. The region to the left of the solid contour is excluded assuming that the gluino pair-production cross section is $\sigma^{\text{NLO-QCD}}$, and that the branching fraction to this SMS topology is 100\%. The dotted and dashed contours indicate the excluded region when the cross section is varied by a factor of three. The signal contribution to the control regions is taken into account.

\footnotesize Limits on the SMS topology with neutralino LSP ($x=0.75$), based on the \JZB method: (left) signal efficiency times acceptance normalized to the number of events with at least one $Z\to\ell\ell$ decay for the $\JZB>150\GeV$ region; (right) 95\% CL upper limits on the total gluino pair-production cross section. The region to the left of the solid contour is excluded assuming that the gluino pair-production cross section is $\sigma^{\text{NLO-QCD}}$, and that the branching fraction to this SMS topology is 100\%. The dotted and dashed contours indicate the excluded region when the cross section is varied by a factor of three. The signal contribution to the control regions is taken into account.

\footnotesize Limits on the SMS topology with neutralino LSP ($x=0.75$), based on the \MET\ template method: (left) signal efficiency times acceptance normalized to the number of events with at least one $Z\to\ell\ell$ decay for the $\MET>100\GeV$ region; (right) 95\% CL upper limits on the total gluino pair-production cross section. The region to the left of the solid contour is excluded assuming that the gluino pair-production cross section is $\sigma^{\text{NLO-QCD}}$, and that the branching fraction to this SMS topology is 100\%. The dotted and dashed contours indicate the excluded region when the cross section is varied by a factor of three. The signal contribution to the control regions is negligible.

\footnotesize Limits on the SMS topology with neutralino LSP ($x=0.75$), based on the \MET\ template method: (left) signal efficiency times acceptance normalized to the number of events with at least one $Z\to\ell\ell$ decay for the $\MET>100\GeV$ region; (right) 95\% CL upper limits on the total gluino pair-production cross section. The region to the left of the solid contour is excluded assuming that the gluino pair-production cross section is $\sigma^{\text{NLO-QCD}}$, and that the branching fraction to this SMS topology is 100\%. The dotted and dashed contours indicate the excluded region when the cross section is varied by a factor of three. The region where $x$ deviates from 0.75 is indicated by the diagonal dashed line. The signal contribution to the control regions is negligible.

\footnotesize Limits on the SMS topology with neutralino LSP ($x=0.75$), based on the \MET\ template method: (left) signal efficiency times acceptance normalized to the number of events with at least one $Z\to\ell\ell$ decay for the $\MET>100\GeV$ region; (right) 95\% CL upper limits on the total gluino pair-production cross section. The region to the left of the solid contour is excluded assuming that the gluino pair-production cross section is $\sigma^{\text{NLO-QCD}}$, and that the branching fraction to this SMS topology is 100\%. The dotted and dashed contours indicate the excluded region when the cross section is varied by a factor of three. The signal contribution to the control regions is negligible.

\footnotesize Limits on the SMS topology with gravitino LSP, based on the \JZB method: (left) signal efficiency times acceptance normalized to the number of events with at least one $Z\to\ell\ell$ decay for the $\JZB>150\GeV$ region; (right) 95\% CL upper limits on the total gluino pair-production cross section. The region to the left of the solid contour is excluded assuming that the gluino pair-production cross section is $\sigma^{\text{NLO-QCD}}$, and that the branching fraction to this SMS topology is 100\%. The dotted and dashed contours indicate the excluded region when the cross section is varied by a factor of three. The signal contribution to the control regions is taken into account.

\footnotesize Limits on the SMS topology with gravitino LSP, based on the \JZB method: (left) signal efficiency times acceptance normalized to the number of events with at least one $Z\to\ell\ell$ decay for the $\JZB>150\GeV$ region; (right) 95\% CL upper limits on the total gluino pair-production cross section. The region to the left of the solid contour is excluded assuming that the gluino pair-production cross section is $\sigma^{\text{NLO-QCD}}$, and that the branching fraction to this SMS topology is 100\%. The dotted and dashed contours indicate the excluded region when the cross section is varied by a factor of three. The signal contribution to the control regions is taken into account.

\footnotesize Limits on the SMS topology with gravitino LSP, based on the \MET\ template method: (left) signal efficiency times acceptance normalized to the number of events with at least one $Z\to\ell\ell$ decay for the $\MET>100\GeV$ region; (right) 95\% CL upper limits on the total gluino pair-production cross section. The region to the left of the solid contour is excluded assuming that the gluino pair-production cross section is $\sigma^{\text{NLO-QCD}}$, and that the branching fraction to this SMS topology is 100\%. The dotted and dashed contours indicate the excluded region when the cross section is varied by a factor of three. The signal contribution to the control regions is negligible.