| Transverse momentum (left) and invariant mass (right) of the di-\bjet\ system built with the two highest-\pt\ \bjets\ for events with at least two \bjets\ in the $t\bar{t}$ validation region. Systematic uncertainties of the predicted distributions are combined with the statistical ones in the hatched band, and the statistical uncertainty of the data is shown as error bars. The systematic uncertainties for the predictions account only for the yield and the shape of $t\bar{t}$ events. |
| Transverse momentum (left) and invariant mass (right) of the di-\bjet\ system built with the two highest-\pt\ \bjets\ for events with at least two \bjets\ in the $t\bar{t}$ validation region. Systematic uncertainties of the predicted distributions are combined with the statistical ones in the hatched band, and the statistical uncertainty of the data is shown as error bars. The systematic uncertainties for the predictions account only for the yield and the shape of $t\bar{t}$ events. |
| Transverse momentum (left) and invariant mass (right) of the di-\bjet\ system built with the two highest-\pt\ \bjets\ for events with at least two \bjets\ in the $t\bar{t}$ validation region. Systematic uncertainties of the predicted distributions are combined with the statistical ones in the hatched band, and the statistical uncertainty of the data is shown as error bars. The systematic uncertainties for the predictions account only for the yield and the shape of $t\bar{t}$ events. |
| Transverse momentum (left) and invariant mass (right) of the di-\bjet\ system built with the two highest-\pt\ \bjets\ for events with at least two \bjets\ in the $t\bar{t}$ validation region. Systematic uncertainties of the predicted distributions are combined with the statistical ones in the hatched band, and the statistical uncertainty of the data is shown as error bars. The systematic uncertainties for the predictions account only for the yield and the shape of $t\bar{t}$ events. |
| Post-fit $b$-tagging discriminant distributions for the electron (left) and muon (right) channels in the 1-tag (top) and 2-tag (bottom) signal regions. The lower panels display the ratios of the predictions to data using the signal and $Z$+jet background simulation either from \sherpa (red) or \alpgen (blue). Systematic and statistical uncertainties for the predicted distributions are combined in the hatched band, and the statistical uncertainty, estimated with pseudo-experiments, is shown on the data points. The systematic uncertainties account for both the detector-level uncertainties and the theory uncertainty of the non-$Z$ backgrounds. |
| Post-fit $b$-tagging discriminant distributions for the electron (left) and muon (right) channels in the 1-tag (top) and 2-tag (bottom) signal regions. The lower panels display the ratios of the predictions to data using the signal and $Z$+jet background simulation either from \sherpa (red) or \alpgen (blue). Systematic and statistical uncertainties for the predicted distributions are combined in the hatched band, and the statistical uncertainty, estimated with pseudo-experiments, is shown on the data points. The systematic uncertainties account for both the detector-level uncertainties and the theory uncertainty of the non-$Z$ backgrounds. |
| Post-fit $b$-tagging discriminant distributions for the electron (left) and muon (right) channels in the 1-tag (top) and 2-tag (bottom) signal regions. The lower panels display the ratios of the predictions to data using the signal and $Z$+jet background simulation either from \sherpa (red) or \alpgen (blue). Systematic and statistical uncertainties for the predicted distributions are combined in the hatched band, and the statistical uncertainty, estimated with pseudo-experiments, is shown on the data points. The systematic uncertainties account for both the detector-level uncertainties and the theory uncertainty of the non-$Z$ backgrounds. |
| Post-fit $b$-tagging discriminant distributions for the electron (left) and muon (right) channels in the 1-tag (top) and 2-tag (bottom) signal regions. The lower panels display the ratios of the predictions to data using the signal and $Z$+jet background simulation either from \sherpa (red) or \alpgen (blue). Systematic and statistical uncertainties for the predicted distributions are combined in the hatched band, and the statistical uncertainty, estimated with pseudo-experiments, is shown on the data points. The systematic uncertainties account for both the detector-level uncertainties and the theory uncertainty of the non-$Z$ backgrounds. |
| Post-fit $b$-tagging discriminant distributions for the electron (left) and muon (right) channels in the 1-tag (top) and 2-tag (bottom) signal regions. The lower panels display the ratios of the predictions to data using the signal and $Z$+jet background simulation either from \sherpa (red) or \alpgen (blue). Systematic and statistical uncertainties for the predicted distributions are combined in the hatched band, and the statistical uncertainty, estimated with pseudo-experiments, is shown on the data points. The systematic uncertainties account for both the detector-level uncertainties and the theory uncertainty of the non-$Z$ backgrounds. |
| Post-fit $b$-tagging discriminant distributions for the electron (left) and muon (right) channels in the 1-tag (top) and 2-tag (bottom) signal regions. The lower panels display the ratios of the predictions to data using the signal and $Z$+jet background simulation either from \sherpa (red) or \alpgen (blue). Systematic and statistical uncertainties for the predicted distributions are combined in the hatched band, and the statistical uncertainty, estimated with pseudo-experiments, is shown on the data points. The systematic uncertainties account for both the detector-level uncertainties and the theory uncertainty of the non-$Z$ backgrounds. |
| Post-fit $b$-tagging discriminant distributions for the electron (left) and muon (right) channels in the 1-tag (top) and 2-tag (bottom) signal regions. The lower panels display the ratios of the predictions to data using the signal and $Z$+jet background simulation either from \sherpa (red) or \alpgen (blue). Systematic and statistical uncertainties for the predicted distributions are combined in the hatched band, and the statistical uncertainty, estimated with pseudo-experiments, is shown on the data points. The systematic uncertainties account for both the detector-level uncertainties and the theory uncertainty of the non-$Z$ backgrounds. |
| Post-fit $b$-tagging discriminant distributions for the electron (left) and muon (right) channels in the 1-tag (top) and 2-tag (bottom) signal regions. The lower panels display the ratios of the predictions to data using the signal and $Z$+jet background simulation either from \sherpa (red) or \alpgen (blue). Systematic and statistical uncertainties for the predicted distributions are combined in the hatched band, and the statistical uncertainty, estimated with pseudo-experiments, is shown on the data points. The systematic uncertainties account for both the detector-level uncertainties and the theory uncertainty of the non-$Z$ backgrounds. |
| The \pt\ of the leading \bjet\ (left) and of the $Z$ boson (right) for events with at least one \bjet\ in the $Z$+jets validation region defined in Table~\ref{tab:ZBJetSelection}. Post-fit distributions for signal and $Z$ + jets backgrounds are shown. Systematic and statistical uncertainties for the predicted distributions are combined in the hatched band, and the statistical uncertainty is shown on the data points. The uncertainty in the predictions includes only the flavour-tagging efficiency uncertainty and flavour-fit uncertainty. |
| The \pt\ of the leading \bjet\ (left) and of the $Z$ boson (right) for events with at least one \bjet\ in the $Z$+jets validation region defined in Table~\ref{tab:ZBJetSelection}. Post-fit distributions for signal and $Z$ + jets backgrounds are shown. Systematic and statistical uncertainties for the predicted distributions are combined in the hatched band, and the statistical uncertainty is shown on the data points. The uncertainty in the predictions includes only the flavour-tagging efficiency uncertainty and flavour-fit uncertainty. |
| The \pt\ of the leading \bjet\ (left) and of the $Z$ boson (right) for events with at least one \bjet\ in the $Z$+jets validation region defined in Table~\ref{tab:ZBJetSelection}. Post-fit distributions for signal and $Z$ + jets backgrounds are shown. Systematic and statistical uncertainties for the predicted distributions are combined in the hatched band, and the statistical uncertainty is shown on the data points. The uncertainty in the predictions includes only the flavour-tagging efficiency uncertainty and flavour-fit uncertainty. |
| The \pt\ of the leading \bjet\ (left) and of the $Z$ boson (right) for events with at least one \bjet\ in the $Z$+jets validation region defined in Table~\ref{tab:ZBJetSelection}. Post-fit distributions for signal and $Z$ + jets backgrounds are shown. Systematic and statistical uncertainties for the predicted distributions are combined in the hatched band, and the statistical uncertainty is shown on the data points. The uncertainty in the predictions includes only the flavour-tagging efficiency uncertainty and flavour-fit uncertainty. |
| Distribution of events passing the signal selection as a function of $m_{\ell\ell}$ (left) and $p_{\textrm{T},Z}$ (right) for events with at least one \bjet. The lower panels display the ratio of the predictions for signal plus background to data using either \sherpa (red) or \alpgen+~\pythiasix (blue) as the signal simulation. The statistical uncertainty of the data is shown as black error bars and the total uncertainty of the prediction as a hatched band. The latter consists of the statistical uncertainty and all systematic uncertainties from the predictions. |
| Distribution of events passing the signal selection as a function of $m_{\ell\ell}$ (left) and $p_{\textrm{T},Z}$ (right) for events with at least one \bjet. The lower panels display the ratio of the predictions for signal plus background to data using either \sherpa (red) or \alpgen+~\pythiasix (blue) as the signal simulation. The statistical uncertainty of the data is shown as black error bars and the total uncertainty of the prediction as a hatched band. The latter consists of the statistical uncertainty and all systematic uncertainties from the predictions. |
| Distribution of events passing the signal selection as a function of $m_{\ell\ell}$ (left) and $p_{\textrm{T},Z}$ (right) for events with at least one \bjet. The lower panels display the ratio of the predictions for signal plus background to data using either \sherpa (red) or \alpgen+~\pythiasix (blue) as the signal simulation. The statistical uncertainty of the data is shown as black error bars and the total uncertainty of the prediction as a hatched band. The latter consists of the statistical uncertainty and all systematic uncertainties from the predictions. |
| Distribution of events passing the signal selection as a function of $m_{\ell\ell}$ (left) and $p_{\textrm{T},Z}$ (right) for events with at least one \bjet. The lower panels display the ratio of the predictions for signal plus background to data using either \sherpa (red) or \alpgen+~\pythiasix (blue) as the signal simulation. The statistical uncertainty of the data is shown as black error bars and the total uncertainty of the prediction as a hatched band. The latter consists of the statistical uncertainty and all systematic uncertainties from the predictions. |
| Distribution of events passing the signal selection as a function of $p_{\textrm{T},Z}$ (left) and $\Delta R_{bb}$ (right) for events with at least two \bjets. The lower panels display the ratio of the predictions for signal plus background to data using either \sherpa (red) or \alpgen+~\pythiasix (blue) as the signal simulation. The statistical uncertainty of the data is shown as black error bars and the total uncertainty of the prediction as the hatched band. The latter consists of the statistical uncertainty and all systematic uncertainties from the predictions. |
| Distribution of events passing the signal selection as a function of $p_{\textrm{T},Z}$ (left) and $\Delta R_{bb}$ (right) for events with at least two \bjets. The lower panels display the ratio of the predictions for signal plus background to data using either \sherpa (red) or \alpgen+~\pythiasix (blue) as the signal simulation. The statistical uncertainty of the data is shown as black error bars and the total uncertainty of the prediction as the hatched band. The latter consists of the statistical uncertainty and all systematic uncertainties from the predictions. |
| Distribution of events passing the signal selection as a function of $p_{\textrm{T},Z}$ (left) and $\Delta R_{bb}$ (right) for events with at least two \bjets. The lower panels display the ratio of the predictions for signal plus background to data using either \sherpa (red) or \alpgen+~\pythiasix (blue) as the signal simulation. The statistical uncertainty of the data is shown as black error bars and the total uncertainty of the prediction as the hatched band. The latter consists of the statistical uncertainty and all systematic uncertainties from the predictions. |
| Distribution of events passing the signal selection as a function of $p_{\textrm{T},Z}$ (left) and $\Delta R_{bb}$ (right) for events with at least two \bjets. The lower panels display the ratio of the predictions for signal plus background to data using either \sherpa (red) or \alpgen+~\pythiasix (blue) as the signal simulation. The statistical uncertainty of the data is shown as black error bars and the total uncertainty of the prediction as the hatched band. The latter consists of the statistical uncertainty and all systematic uncertainties from the predictions. |
| Relative systematic uncertainties in the fiducial cross-section as a function of the \Zbos\ \pt\ in events with at least one \bjet\ (left) and as a function of the $\Delta R$ between the two leading \bjets\ in events with at least two \bjets\ (right). The total uncertainty is shown in black while the different components listed in Table~\ref{tab:unc_Zll} are shown in different colours. |
| Relative systematic uncertainties in the fiducial cross-section as a function of the \Zbos\ \pt\ in events with at least one \bjet\ (left) and as a function of the $\Delta R$ between the two leading \bjets\ in events with at least two \bjets\ (right). The total uncertainty is shown in black while the different components listed in Table~\ref{tab:unc_Zll} are shown in different colours. |
| Relative systematic uncertainties in the fiducial cross-section as a function of the \Zbos\ \pt\ in events with at least one \bjet\ (left) and as a function of the $\Delta R$ between the two leading \bjets\ in events with at least two \bjets\ (right). The total uncertainty is shown in black while the different components listed in Table~\ref{tab:unc_Zll} are shown in different colours. |
| Relative systematic uncertainties in the fiducial cross-section as a function of the \Zbos\ \pt\ in events with at least one \bjet\ (left) and as a function of the $\Delta R$ between the two leading \bjets\ in events with at least two \bjets\ (right). The total uncertainty is shown in black while the different components listed in Table~\ref{tab:unc_Zll} are shown in different colours. |
| Measured cross-sections for $Z$ + $\ge$ 1 \bjet\ (left) and $Z$ + $\ge$ 2 \bjet s (right). The data are compared with the predictions from \sherpa \textsc{5FNS (NLO)}, \alpgen + \pythiasixshort \textsc{4 FNS (LO)}, \sherpaF \textsc{4FNS+5FNS (NLO)}, \sherpaZbbNLO , \textsc{MGaMC} + \pythiaeightshort \textsc{5FNS (LO)}, \textsc{MGaMC} + \pythiaeightshort \textsc{Zbb 4FNS (NLO)} and \textsc{MGaMC} + \pythiaeightshort \textsc{5FNS (NLO)}. The yellow band corresponds to the statistical uncertainty of the data, and the green band to statistical and systematic uncertainties of the data, added in quadrature. The error bars on the \sherpa \textsc{5FNS (NLO)} predictions correspond to the statistical and theoretical uncertainties added in quadrature. Only statistical uncertainties are shown for the other predictions. |
| Measured cross-sections for $Z$ + $\ge$ 1 \bjet\ (left) and $Z$ + $\ge$ 2 \bjet s (right). The data are compared with the predictions from \sherpa \textsc{5FNS (NLO)}, \alpgen + \pythiasixshort \textsc{4 FNS (LO)}, \sherpaF \textsc{4FNS+5FNS (NLO)}, \sherpaZbbNLO , \textsc{MGaMC} + \pythiaeightshort \textsc{5FNS (LO)}, \textsc{MGaMC} + \pythiaeightshort \textsc{Zbb 4FNS (NLO)} and \textsc{MGaMC} + \pythiaeightshort \textsc{5FNS (NLO)}. The yellow band corresponds to the statistical uncertainty of the data, and the green band to statistical and systematic uncertainties of the data, added in quadrature. The error bars on the \sherpa \textsc{5FNS (NLO)} predictions correspond to the statistical and theoretical uncertainties added in quadrature. Only statistical uncertainties are shown for the other predictions. |
| Measured cross-sections for $Z$ + $\ge$ 1 \bjet\ (left) and $Z$ + $\ge$ 2 \bjet s (right). The data are compared with the predictions from \sherpa \textsc{5FNS (NLO)}, \alpgen + \pythiasixshort \textsc{4 FNS (LO)}, \sherpaF \textsc{4FNS+5FNS (NLO)}, \sherpaZbbNLO , \textsc{MGaMC} + \pythiaeightshort \textsc{5FNS (LO)}, \textsc{MGaMC} + \pythiaeightshort \textsc{Zbb 4FNS (NLO)} and \textsc{MGaMC} + \pythiaeightshort \textsc{5FNS (NLO)}. The yellow band corresponds to the statistical uncertainty of the data, and the green band to statistical and systematic uncertainties of the data, added in quadrature. The error bars on the \sherpa \textsc{5FNS (NLO)} predictions correspond to the statistical and theoretical uncertainties added in quadrature. Only statistical uncertainties are shown for the other predictions. |
| Measured cross-sections for $Z$ + $\ge$ 1 \bjet\ (left) and $Z$ + $\ge$ 2 \bjet s (right). The data are compared with the predictions from \sherpa \textsc{5FNS (NLO)}, \alpgen + \pythiasixshort \textsc{4 FNS (LO)}, \sherpaF \textsc{4FNS+5FNS (NLO)}, \sherpaZbbNLO , \textsc{MGaMC} + \pythiaeightshort \textsc{5FNS (LO)}, \textsc{MGaMC} + \pythiaeightshort \textsc{Zbb 4FNS (NLO)} and \textsc{MGaMC} + \pythiaeightshort \textsc{5FNS (NLO)}. The yellow band corresponds to the statistical uncertainty of the data, and the green band to statistical and systematic uncertainties of the data, added in quadrature. The error bars on the \sherpa \textsc{5FNS (NLO)} predictions correspond to the statistical and theoretical uncertainties added in quadrature. Only statistical uncertainties are shown for the other predictions. |
| Measured cross-section as a function of \Zbos\ \pt\ (left) and leading \bjet\ \pt\ (right) in events with at least one \bjet. The data are compared with the predictions from \sherpa \textsc{5FNS (NLO)}, \alpgen + \pythiasixshort \textsc{4 FNS (LO)}, \sherpaF \textsc{4FNS+5FNS (NLO)}, \sherpaZbbNLO , \textsc{MGaMC} + \pythiaeightshort \textsc{5FNS (LO)}, \textsc{MGaMC} + \pythiaeightshort \textsc{Zbb 4FNS (NLO)} and \textsc{MGaMC} + \pythiaeightshort \textsc{5FNS (NLO)}. The error bars correspond to the statistical uncertainty, and the hatched bands to the data statistical and systematic uncertainties added in quadrature. The red band corresponds to the statistical and theoretical uncertainties of \sherpa \textsc{5FNS (NLO)} added in quadrature. Only statistical uncertainties are shown for the other predictions. |
| Measured cross-section as a function of \Zbos\ \pt\ (left) and leading \bjet\ \pt\ (right) in events with at least one \bjet. The data are compared with the predictions from \sherpa \textsc{5FNS (NLO)}, \alpgen + \pythiasixshort \textsc{4 FNS (LO)}, \sherpaF \textsc{4FNS+5FNS (NLO)}, \sherpaZbbNLO , \textsc{MGaMC} + \pythiaeightshort \textsc{5FNS (LO)}, \textsc{MGaMC} + \pythiaeightshort \textsc{Zbb 4FNS (NLO)} and \textsc{MGaMC} + \pythiaeightshort \textsc{5FNS (NLO)}. The error bars correspond to the statistical uncertainty, and the hatched bands to the data statistical and systematic uncertainties added in quadrature. The red band corresponds to the statistical and theoretical uncertainties of \sherpa \textsc{5FNS (NLO)} added in quadrature. Only statistical uncertainties are shown for the other predictions. |
| Measured cross-section as a function of \Zbos\ \pt\ (left) and leading \bjet\ \pt\ (right) in events with at least one \bjet. The data are compared with the predictions from \sherpa \textsc{5FNS (NLO)}, \alpgen + \pythiasixshort \textsc{4 FNS (LO)}, \sherpaF \textsc{4FNS+5FNS (NLO)}, \sherpaZbbNLO , \textsc{MGaMC} + \pythiaeightshort \textsc{5FNS (LO)}, \textsc{MGaMC} + \pythiaeightshort \textsc{Zbb 4FNS (NLO)} and \textsc{MGaMC} + \pythiaeightshort \textsc{5FNS (NLO)}. The error bars correspond to the statistical uncertainty, and the hatched bands to the data statistical and systematic uncertainties added in quadrature. The red band corresponds to the statistical and theoretical uncertainties of \sherpa \textsc{5FNS (NLO)} added in quadrature. Only statistical uncertainties are shown for the other predictions. |
| Measured cross-section as a function of \Zbos\ \pt\ (left) and leading \bjet\ \pt\ (right) in events with at least one \bjet. The data are compared with the predictions from \sherpa \textsc{5FNS (NLO)}, \alpgen + \pythiasixshort \textsc{4 FNS (LO)}, \sherpaF \textsc{4FNS+5FNS (NLO)}, \sherpaZbbNLO , \textsc{MGaMC} + \pythiaeightshort \textsc{5FNS (LO)}, \textsc{MGaMC} + \pythiaeightshort \textsc{Zbb 4FNS (NLO)} and \textsc{MGaMC} + \pythiaeightshort \textsc{5FNS (NLO)}. The error bars correspond to the statistical uncertainty, and the hatched bands to the data statistical and systematic uncertainties added in quadrature. The red band corresponds to the statistical and theoretical uncertainties of \sherpa \textsc{5FNS (NLO)} added in quadrature. Only statistical uncertainties are shown for the other predictions. |
| Measured cross-section as a function of \Zbos\ $|y|$ (left) and leading \bjet\ $|y|$ (right) in events with at least one \bjet. The data are compared with the predictions from \sherpa \textsc{5FNS (NLO)}, \alpgen + \pythiasixshort \textsc{4 FNS (LO)}, \sherpaF \textsc{4FNS+5FNS (NLO)}, \sherpaZbbNLO , \textsc{MGaMC} + \pythiaeightshort \textsc{5FNS (LO)}, \textsc{MGaMC} + \pythiaeightshort \textsc{Zbb 4FNS (NLO)} and \textsc{MGaMC} + \pythiaeightshort \textsc{5FNS (NLO)}. The error bars correspond to the statistical uncertainty, and the hatched bands to the data statistical and systematic uncertainties added in quadrature. The red band corresponds to the statistical and theoretical uncertainties of \sherpa \textsc{5FNS (NLO)} added in quadrature. Only statistical uncertainties are shown for the other predictions. |
| Measured cross-section as a function of \Zbos\ $|y|$ (left) and leading \bjet\ $|y|$ (right) in events with at least one \bjet. The data are compared with the predictions from \sherpa \textsc{5FNS (NLO)}, \alpgen + \pythiasixshort \textsc{4 FNS (LO)}, \sherpaF \textsc{4FNS+5FNS (NLO)}, \sherpaZbbNLO , \textsc{MGaMC} + \pythiaeightshort \textsc{5FNS (LO)}, \textsc{MGaMC} + \pythiaeightshort \textsc{Zbb 4FNS (NLO)} and \textsc{MGaMC} + \pythiaeightshort \textsc{5FNS (NLO)}. The error bars correspond to the statistical uncertainty, and the hatched bands to the data statistical and systematic uncertainties added in quadrature. The red band corresponds to the statistical and theoretical uncertainties of \sherpa \textsc{5FNS (NLO)} added in quadrature. Only statistical uncertainties are shown for the other predictions. |
| Measured cross-section as a function of \Zbos\ $|y|$ (left) and leading \bjet\ $|y|$ (right) in events with at least one \bjet. The data are compared with the predictions from \sherpa \textsc{5FNS (NLO)}, \alpgen + \pythiasixshort \textsc{4 FNS (LO)}, \sherpaF \textsc{4FNS+5FNS (NLO)}, \sherpaZbbNLO , \textsc{MGaMC} + \pythiaeightshort \textsc{5FNS (LO)}, \textsc{MGaMC} + \pythiaeightshort \textsc{Zbb 4FNS (NLO)} and \textsc{MGaMC} + \pythiaeightshort \textsc{5FNS (NLO)}. The error bars correspond to the statistical uncertainty, and the hatched bands to the data statistical and systematic uncertainties added in quadrature. The red band corresponds to the statistical and theoretical uncertainties of \sherpa \textsc{5FNS (NLO)} added in quadrature. Only statistical uncertainties are shown for the other predictions. |
| Measured cross-section as a function of \Zbos\ $|y|$ (left) and leading \bjet\ $|y|$ (right) in events with at least one \bjet. The data are compared with the predictions from \sherpa \textsc{5FNS (NLO)}, \alpgen + \pythiasixshort \textsc{4 FNS (LO)}, \sherpaF \textsc{4FNS+5FNS (NLO)}, \sherpaZbbNLO , \textsc{MGaMC} + \pythiaeightshort \textsc{5FNS (LO)}, \textsc{MGaMC} + \pythiaeightshort \textsc{Zbb 4FNS (NLO)} and \textsc{MGaMC} + \pythiaeightshort \textsc{5FNS (NLO)}. The error bars correspond to the statistical uncertainty, and the hatched bands to the data statistical and systematic uncertainties added in quadrature. The red band corresponds to the statistical and theoretical uncertainties of \sherpa \textsc{5FNS (NLO)} added in quadrature. Only statistical uncertainties are shown for the other predictions. |
| Measured cross-section as a function of $\Delta \phi$ (left) and $\Delta y$ between the \Zbos\ candidate and the leading \bjet\ (right) in events with at least one \bjet. The data are compared with the predictions from \sherpa \textsc{5FNS (NLO)}, \alpgen + \pythiasixshort \textsc{4 FNS (LO)}, \sherpaF \textsc{4FNS+5FNS (NLO)}, \sherpaZbbNLO , \textsc{MGaMC} + \pythiaeightshort \textsc{5FNS (LO)}, \textsc{MGaMC} + \pythiaeightshort \textsc{Zbb 4FNS (NLO)} and \textsc{MGaMC} + \pythiaeightshort \textsc{5FNS (NLO)}. The error bars correspond to the statistical uncertainty, and the hatched bands to the data statistical and systematic uncertainties added in quadrature. The red band corresponds to the statistical and theoretical uncertainties of \sherpa \textsc{5FNS (NLO)} added in quadrature. Only statistical uncertainties are shown for the other predictions. |
| Measured cross-section as a function of $\Delta \phi$ (left) and $\Delta y$ between the \Zbos\ candidate and the leading \bjet\ (right) in events with at least one \bjet. The data are compared with the predictions from \sherpa \textsc{5FNS (NLO)}, \alpgen + \pythiasixshort \textsc{4 FNS (LO)}, \sherpaF \textsc{4FNS+5FNS (NLO)}, \sherpaZbbNLO , \textsc{MGaMC} + \pythiaeightshort \textsc{5FNS (LO)}, \textsc{MGaMC} + \pythiaeightshort \textsc{Zbb 4FNS (NLO)} and \textsc{MGaMC} + \pythiaeightshort \textsc{5FNS (NLO)}. The error bars correspond to the statistical uncertainty, and the hatched bands to the data statistical and systematic uncertainties added in quadrature. The red band corresponds to the statistical and theoretical uncertainties of \sherpa \textsc{5FNS (NLO)} added in quadrature. Only statistical uncertainties are shown for the other predictions. |
| Measured cross-section as a function of $\Delta \phi$ (left) and $\Delta y$ between the \Zbos\ candidate and the leading \bjet\ (right) in events with at least one \bjet. The data are compared with the predictions from \sherpa \textsc{5FNS (NLO)}, \alpgen + \pythiasixshort \textsc{4 FNS (LO)}, \sherpaF \textsc{4FNS+5FNS (NLO)}, \sherpaZbbNLO , \textsc{MGaMC} + \pythiaeightshort \textsc{5FNS (LO)}, \textsc{MGaMC} + \pythiaeightshort \textsc{Zbb 4FNS (NLO)} and \textsc{MGaMC} + \pythiaeightshort \textsc{5FNS (NLO)}. The error bars correspond to the statistical uncertainty, and the hatched bands to the data statistical and systematic uncertainties added in quadrature. The red band corresponds to the statistical and theoretical uncertainties of \sherpa \textsc{5FNS (NLO)} added in quadrature. Only statistical uncertainties are shown for the other predictions. |
| Measured cross-section as a function of $\Delta \phi$ (left) and $\Delta y$ between the \Zbos\ candidate and the leading \bjet\ (right) in events with at least one \bjet. The data are compared with the predictions from \sherpa \textsc{5FNS (NLO)}, \alpgen + \pythiasixshort \textsc{4 FNS (LO)}, \sherpaF \textsc{4FNS+5FNS (NLO)}, \sherpaZbbNLO , \textsc{MGaMC} + \pythiaeightshort \textsc{5FNS (LO)}, \textsc{MGaMC} + \pythiaeightshort \textsc{Zbb 4FNS (NLO)} and \textsc{MGaMC} + \pythiaeightshort \textsc{5FNS (NLO)}. The error bars correspond to the statistical uncertainty, and the hatched bands to the data statistical and systematic uncertainties added in quadrature. The red band corresponds to the statistical and theoretical uncertainties of \sherpa \textsc{5FNS (NLO)} added in quadrature. Only statistical uncertainties are shown for the other predictions. |
| Measured cross-section as a function of the \DR\ between the \Zbos\ candidate and the leading \bjet\ in events with at least one \bjet. The data are compared with the predictions from \sherpa \textsc{5FNS (NLO)}, \alpgen + \pythiasixshort \textsc{4 FNS (LO)}, \sherpaF \textsc{4FNS+5FNS (NLO)}, \sherpaZbbNLO , \textsc{MGaMC} + \pythiaeightshort \textsc{5FNS (LO)}, \textsc{MGaMC} + \pythiaeightshort \textsc{Zbb 4FNS (NLO)} and \textsc{MGaMC} + \pythiaeightshort \textsc{5FNS (NLO)}. The error bars correspond to the statistical uncertainty, and the hatched bands to the statistical and systematic uncertainties of the data, added in quadrature. The red band corresponds to the statistical and theoretical uncertainties of \sherpa \textsc{5FNS (NLO)} added in quadrature. Only statistical uncertainties are shown for the other predictions. |
| Measured cross-section as a function of the \DR\ between the \Zbos\ candidate and the leading \bjet\ in events with at least one \bjet. The data are compared with the predictions from \sherpa \textsc{5FNS (NLO)}, \alpgen + \pythiasixshort \textsc{4 FNS (LO)}, \sherpaF \textsc{4FNS+5FNS (NLO)}, \sherpaZbbNLO , \textsc{MGaMC} + \pythiaeightshort \textsc{5FNS (LO)}, \textsc{MGaMC} + \pythiaeightshort \textsc{Zbb 4FNS (NLO)} and \textsc{MGaMC} + \pythiaeightshort \textsc{5FNS (NLO)}. The error bars correspond to the statistical uncertainty, and the hatched bands to the statistical and systematic uncertainties of the data, added in quadrature. The red band corresponds to the statistical and theoretical uncertainties of \sherpa \textsc{5FNS (NLO)} added in quadrature. Only statistical uncertainties are shown for the other predictions. |
| Measured cross-section as a function of $\Delta \phi$ (left) and $\Delta y$ between the two leading \bjet s (right) in events with at least two \bjet s. The data are compared with the predictions from \sherpa \textsc{5FNS (NLO)}, \alpgen + \pythiasixshort \textsc{4 FNS (LO)}, \sherpaF \textsc{4FNS+5FNS (NLO)}, \sherpaZbbNLO , \textsc{MGaMC} + \pythiaeightshort \textsc{5FNS (LO)}, \textsc{MGaMC} + \pythiaeightshort \textsc{Zbb 4FNS (NLO)} and \textsc{MGaMC} + \pythiaeightshort \textsc{5FNS (NLO)}. The error bars correspond to the statistical uncertainty, and the hatched bands to the data statistical and systematic uncertainties added in quadrature. The red band corresponds to the statistical and theoretical uncertainties of \sherpa \textsc{5FNS (NLO)} added in quadrature. Only statistical uncertainties are shown for the other predictions. |
| Measured cross-section as a function of $\Delta \phi$ (left) and $\Delta y$ between the two leading \bjet s (right) in events with at least two \bjet s. The data are compared with the predictions from \sherpa \textsc{5FNS (NLO)}, \alpgen + \pythiasixshort \textsc{4 FNS (LO)}, \sherpaF \textsc{4FNS+5FNS (NLO)}, \sherpaZbbNLO , \textsc{MGaMC} + \pythiaeightshort \textsc{5FNS (LO)}, \textsc{MGaMC} + \pythiaeightshort \textsc{Zbb 4FNS (NLO)} and \textsc{MGaMC} + \pythiaeightshort \textsc{5FNS (NLO)}. The error bars correspond to the statistical uncertainty, and the hatched bands to the data statistical and systematic uncertainties added in quadrature. The red band corresponds to the statistical and theoretical uncertainties of \sherpa \textsc{5FNS (NLO)} added in quadrature. Only statistical uncertainties are shown for the other predictions. |
| Measured cross-section as a function of $\Delta \phi$ (left) and $\Delta y$ between the two leading \bjet s (right) in events with at least two \bjet s. The data are compared with the predictions from \sherpa \textsc{5FNS (NLO)}, \alpgen + \pythiasixshort \textsc{4 FNS (LO)}, \sherpaF \textsc{4FNS+5FNS (NLO)}, \sherpaZbbNLO , \textsc{MGaMC} + \pythiaeightshort \textsc{5FNS (LO)}, \textsc{MGaMC} + \pythiaeightshort \textsc{Zbb 4FNS (NLO)} and \textsc{MGaMC} + \pythiaeightshort \textsc{5FNS (NLO)}. The error bars correspond to the statistical uncertainty, and the hatched bands to the data statistical and systematic uncertainties added in quadrature. The red band corresponds to the statistical and theoretical uncertainties of \sherpa \textsc{5FNS (NLO)} added in quadrature. Only statistical uncertainties are shown for the other predictions. |
| Measured cross-section as a function of $\Delta \phi$ (left) and $\Delta y$ between the two leading \bjet s (right) in events with at least two \bjet s. The data are compared with the predictions from \sherpa \textsc{5FNS (NLO)}, \alpgen + \pythiasixshort \textsc{4 FNS (LO)}, \sherpaF \textsc{4FNS+5FNS (NLO)}, \sherpaZbbNLO , \textsc{MGaMC} + \pythiaeightshort \textsc{5FNS (LO)}, \textsc{MGaMC} + \pythiaeightshort \textsc{Zbb 4FNS (NLO)} and \textsc{MGaMC} + \pythiaeightshort \textsc{5FNS (NLO)}. The error bars correspond to the statistical uncertainty, and the hatched bands to the data statistical and systematic uncertainties added in quadrature. The red band corresponds to the statistical and theoretical uncertainties of \sherpa \textsc{5FNS (NLO)} added in quadrature. Only statistical uncertainties are shown for the other predictions. |
| Measured cross-section as a function of $\Delta R$ between the two leading \bjet s (left) and invariant mass of the two leading \bjet s (right) in events with at least two \bjet s. The data are compared with the predictions from \sherpa \textsc{5FNS (NLO)}, \alpgen + \pythiasixshort \textsc{4 FNS (LO)}, \sherpaF \textsc{4FNS+5FNS (NLO)}, \sherpaZbbNLO , \textsc{MGaMC} + \pythiaeightshort \textsc{5FNS (LO)}, \textsc{MGaMC} + \pythiaeightshort \textsc{Zbb 4FNS (NLO)} and \textsc{MGaMC} + \pythiaeightshort \textsc{5FNS (NLO)}. The error bars correspond to the statistical uncertainty, and the hatched bands to the data statistical and systematic uncertainties added in quadrature. The red band corresponds to the statistical and theoretical uncertainties of \sherpa \textsc{5FNS (NLO)} added in quadrature. Only statistical uncertainties are shown for the other predictions. |
| Measured cross-section as a function of $\Delta R$ between the two leading \bjet s (left) and invariant mass of the two leading \bjet s (right) in events with at least two \bjet s. The data are compared with the predictions from \sherpa \textsc{5FNS (NLO)}, \alpgen + \pythiasixshort \textsc{4 FNS (LO)}, \sherpaF \textsc{4FNS+5FNS (NLO)}, \sherpaZbbNLO , \textsc{MGaMC} + \pythiaeightshort \textsc{5FNS (LO)}, \textsc{MGaMC} + \pythiaeightshort \textsc{Zbb 4FNS (NLO)} and \textsc{MGaMC} + \pythiaeightshort \textsc{5FNS (NLO)}. The error bars correspond to the statistical uncertainty, and the hatched bands to the data statistical and systematic uncertainties added in quadrature. The red band corresponds to the statistical and theoretical uncertainties of \sherpa \textsc{5FNS (NLO)} added in quadrature. Only statistical uncertainties are shown for the other predictions. |
| Measured cross-section as a function of $\Delta R$ between the two leading \bjet s (left) and invariant mass of the two leading \bjet s (right) in events with at least two \bjet s. The data are compared with the predictions from \sherpa \textsc{5FNS (NLO)}, \alpgen + \pythiasixshort \textsc{4 FNS (LO)}, \sherpaF \textsc{4FNS+5FNS (NLO)}, \sherpaZbbNLO , \textsc{MGaMC} + \pythiaeightshort \textsc{5FNS (LO)}, \textsc{MGaMC} + \pythiaeightshort \textsc{Zbb 4FNS (NLO)} and \textsc{MGaMC} + \pythiaeightshort \textsc{5FNS (NLO)}. The error bars correspond to the statistical uncertainty, and the hatched bands to the data statistical and systematic uncertainties added in quadrature. The red band corresponds to the statistical and theoretical uncertainties of \sherpa \textsc{5FNS (NLO)} added in quadrature. Only statistical uncertainties are shown for the other predictions. |
| Measured cross-section as a function of $\Delta R$ between the two leading \bjet s (left) and invariant mass of the two leading \bjet s (right) in events with at least two \bjet s. The data are compared with the predictions from \sherpa \textsc{5FNS (NLO)}, \alpgen + \pythiasixshort \textsc{4 FNS (LO)}, \sherpaF \textsc{4FNS+5FNS (NLO)}, \sherpaZbbNLO , \textsc{MGaMC} + \pythiaeightshort \textsc{5FNS (LO)}, \textsc{MGaMC} + \pythiaeightshort \textsc{Zbb 4FNS (NLO)} and \textsc{MGaMC} + \pythiaeightshort \textsc{5FNS (NLO)}. The error bars correspond to the statistical uncertainty, and the hatched bands to the data statistical and systematic uncertainties added in quadrature. The red band corresponds to the statistical and theoretical uncertainties of \sherpa \textsc{5FNS (NLO)} added in quadrature. Only statistical uncertainties are shown for the other predictions. |
| Measured cross-section as a function of \pt\ of the $Z$ boson (left) and of the di-\bjet\ system (\ptbb ) (right) in events with at least two \bjet s. The data are compared with the predictions from \sherpa \textsc{5FNS (NLO)}, \alpgen + \pythiasixshort \textsc{4 FNS (LO)}, \sherpaF \textsc{4FNS+5FNS (NLO)}, \sherpaZbbNLO , \textsc{MGaMC} + \pythiaeightshort \textsc{5FNS (LO)}, \textsc{MGaMC} + \pythiaeightshort \textsc{Zbb 4FNS (NLO)} and \textsc{MGaMC} + \pythiaeightshort \textsc{5FNS (NLO)}. The error bars correspond to the statistical uncertainty, and the hatched bands to the data statistical and systematic uncertainties added in quadrature. The red band corresponds to the statistical and theoretical uncertainties of \sherpa \textsc{5FNS (NLO)} added in quadrature. Only statistical uncertainties are shown for the other predictions. |
| Measured cross-section as a function of \pt\ of the $Z$ boson (left) and of the di-\bjet\ system (\ptbb ) (right) in events with at least two \bjet s. The data are compared with the predictions from \sherpa \textsc{5FNS (NLO)}, \alpgen + \pythiasixshort \textsc{4 FNS (LO)}, \sherpaF \textsc{4FNS+5FNS (NLO)}, \sherpaZbbNLO , \textsc{MGaMC} + \pythiaeightshort \textsc{5FNS (LO)}, \textsc{MGaMC} + \pythiaeightshort \textsc{Zbb 4FNS (NLO)} and \textsc{MGaMC} + \pythiaeightshort \textsc{5FNS (NLO)}. The error bars correspond to the statistical uncertainty, and the hatched bands to the data statistical and systematic uncertainties added in quadrature. The red band corresponds to the statistical and theoretical uncertainties of \sherpa \textsc{5FNS (NLO)} added in quadrature. Only statistical uncertainties are shown for the other predictions. |
| Measured cross-section as a function of \pt\ of the $Z$ boson (left) and of the di-\bjet\ system (\ptbb ) (right) in events with at least two \bjet s. The data are compared with the predictions from \sherpa \textsc{5FNS (NLO)}, \alpgen + \pythiasixshort \textsc{4 FNS (LO)}, \sherpaF \textsc{4FNS+5FNS (NLO)}, \sherpaZbbNLO , \textsc{MGaMC} + \pythiaeightshort \textsc{5FNS (LO)}, \textsc{MGaMC} + \pythiaeightshort \textsc{Zbb 4FNS (NLO)} and \textsc{MGaMC} + \pythiaeightshort \textsc{5FNS (NLO)}. The error bars correspond to the statistical uncertainty, and the hatched bands to the data statistical and systematic uncertainties added in quadrature. The red band corresponds to the statistical and theoretical uncertainties of \sherpa \textsc{5FNS (NLO)} added in quadrature. Only statistical uncertainties are shown for the other predictions. |
| Measured cross-section as a function of \pt\ of the $Z$ boson (left) and of the di-\bjet\ system (\ptbb ) (right) in events with at least two \bjet s. The data are compared with the predictions from \sherpa \textsc{5FNS (NLO)}, \alpgen + \pythiasixshort \textsc{4 FNS (LO)}, \sherpaF \textsc{4FNS+5FNS (NLO)}, \sherpaZbbNLO , \textsc{MGaMC} + \pythiaeightshort \textsc{5FNS (LO)}, \textsc{MGaMC} + \pythiaeightshort \textsc{Zbb 4FNS (NLO)} and \textsc{MGaMC} + \pythiaeightshort \textsc{5FNS (NLO)}. The error bars correspond to the statistical uncertainty, and the hatched bands to the data statistical and systematic uncertainties added in quadrature. The red band corresponds to the statistical and theoretical uncertainties of \sherpa \textsc{5FNS (NLO)} added in quadrature. Only statistical uncertainties are shown for the other predictions. |
| Measured cross-section as a function of the \pt\ of the di-\bjet\ system divided by its invariant mass \mbox{(\ptmbb)} in events with at least two \bjet s. The data are compared with the predictions from \sherpa \textsc{5FNS (NLO)}, \alpgen + \pythiasixshort \textsc{4 FNS (LO)}, \sherpaF \textsc{4FNS+5FNS (NLO)}, \sherpaZbbNLO , \textsc{MGaMC} + \pythiaeightshort \textsc{5FNS (LO)}, \textsc{MGaMC} + \pythiaeightshort \textsc{Zbb 4FNS (NLO)} and \textsc{MGaMC} + \pythiaeightshort \textsc{5FNS (NLO)}. The error bars correspond to the statistical uncertainty, and the hatched bands to the statistical and systematic uncertainties of the data, added in quadrature. The red band corresponds to the statistical and theoretical uncertainties of \sherpa \textsc{5FNS (NLO)} added in quadrature. Only statistical uncertainties are shown for the other predictions. |
| Measured cross-section as a function of the \pt\ of the di-\bjet\ system divided by its invariant mass \mbox{(\ptmbb)} in events with at least two \bjet s. The data are compared with the predictions from \sherpa \textsc{5FNS (NLO)}, \alpgen + \pythiasixshort \textsc{4 FNS (LO)}, \sherpaF \textsc{4FNS+5FNS (NLO)}, \sherpaZbbNLO , \textsc{MGaMC} + \pythiaeightshort \textsc{5FNS (LO)}, \textsc{MGaMC} + \pythiaeightshort \textsc{Zbb 4FNS (NLO)} and \textsc{MGaMC} + \pythiaeightshort \textsc{5FNS (NLO)}. The error bars correspond to the statistical uncertainty, and the hatched bands to the statistical and systematic uncertainties of the data, added in quadrature. The red band corresponds to the statistical and theoretical uncertainties of \sherpa \textsc{5FNS (NLO)} added in quadrature. Only statistical uncertainties are shown for the other predictions. |