The observed $m_{T}$ and $m_{jj}$ distributions in the ejj (upper left), $\mu$~jj (upper right), $\tau_{h}$~jj (lower left), and $0\ell$~jj (lower right) signal regions compared with the post-fit SM background yields from the fit described in the text. The pre-fit background yields and shapes are determined using data-driven methods for the major backgrounds, and based on simulation for the smaller backgrounds. Expected signal distributions are overlaid. The last bin in the $m_{T}$ distributions of the $1\ell$~jj channels include all events with $m_{T} > 210$~GeV. The last bin of the $m_{jj}$ distributions of the $0\ell$~jj channel include all events with $m_{jj} > 3800$~GeV.

The observed $m_{T}$ and $m_{jj}$ distributions in the ejj (upper left), $\mu$~jj (upper right), $\tau_{h}$~jj (lower left), and $0\ell$~jj (lower right) signal regions compared with the post-fit SM background yields from the fit described in the text. The pre-fit background yields and shapes are determined using data-driven methods for the major backgrounds, and based on simulation for the smaller backgrounds. Expected signal distributions are overlaid. The last bin in the $m_{T}$ distributions of the $1\ell$~jj channels include all events with $m_{T} > 210$~GeV. The last bin of the $m_{jj}$ distributions of the $0\ell$~jj channel include all events with $m_{jj} > 3800$~GeV.

Combined 95% CL UL on the cross section as a function of $m(\tilde{\chi}_{2}^{0})=m(\tilde{\chi}_{1}^{\pm})$. The results correspond to $\Delta m=1$ GeV (left) and $\Delta m=50$ GeV (right) mass gaps between the chargino and the lightest neutralino in the light slepton model. The top row shows the expected limits, and the bottom row shows the observed limits.

Combined 95% CL UL on the cross section as a function of $m(\tilde{\chi}_{2}^{0})=m(\tilde{\chi}_{1}^{\pm})$. The results correspond to $\Delta m=1$ GeV (left) and $\Delta m=50$ GeV (right) mass gaps between the chargino and the lightest neutralino in the light slepton model. The top row shows the expected limits, and the bottom row shows the observed limits.

Combined 95% CL UL on the cross section as a function of $m(\tilde{\chi}_{2}^{0})=m(\tilde{\chi}_{1}^{\pm})$. The results correspond to $\Delta m=1$ GeV (left) and $\Delta m=50$ GeV (right) mass gaps between the chargino and the lightest neutralino in the light slepton model. The top row shows the expected limits, and the bottom row shows the observed limits.

Combined 95% CL UL on the cross section as a function of $m(\tilde{\chi}_{2}^{0})=m(\tilde{\chi}_{1}^{\pm})$. The results correspond to $\Delta m=1$ GeV (left) and $\Delta m=50$ GeV (right) mass gaps between the chargino and the lightest neutralino in the light slepton model. The top row shows the expected limits, and the bottom row shows the observed limits.

(Left) Expected and observed 95% confidence level upper limit (UL) on the signal cross section as a function of $m(\tilde{\chi}_{1}^{\pm})$ and $\Delta m$, assuming the light slepton model with slepton mass defined as the average of the \tilde{\chi}_{2}^{0} and \tilde{\chi}_{1}^{\pm} masses, $x_{\widetilde{\ell}}=0.5$. The lower left edge of each bin represents the \{$m(\tilde{\chi}_{1}^{\pm})$,$\Delta m$\} combination used to calculate the UL on the signal cross section. For example, the lowest and leftmost bin corresponds to the UL on the signal cross section for the scenario with $m(\tilde{\chi}_{1}^{\pm}) = 100$ GeV and $\Delta m = 1$ GeV. (Right) Combined 95% CL UL on the cross section as a function of $m_{\tilde{\chi}_{2}^{0}}=m_{\tilde{\chi}_{1}^{\pm}}$, for $\Delta m=1$ GeV and $\Delta m=30$ GeV mass gaps between the chargino and the neutralino, assuming the light slepton model.

(Left) Expected and observed 95% confidence level upper limit (UL) on the signal cross section as a function of $m(\tilde{\chi}_{1}^{\pm})$ and $\Delta m$, assuming the light slepton model with slepton mass defined as the average of the \tilde{\chi}_{2}^{0} and \tilde{\chi}_{1}^{\pm} masses, $x_{\widetilde{\ell}}=0.5$. The lower left edge of each bin represents the \{$m(\tilde{\chi}_{1}^{\pm})$,$\Delta m$\} combination used to calculate the UL on the signal cross section. For example, the lowest and leftmost bin corresponds to the UL on the signal cross section for the scenario with $m(\tilde{\chi}_{1}^{\pm}) = 100$ GeV and $\Delta m = 1$ GeV. (Right) Combined 95% CL UL on the cross section as a function of $m_{\tilde{\chi}_{2}^{0}}=m_{\tilde{\chi}_{1}^{\pm}}$, for $\Delta m=1$ GeV and $\Delta m=30$ GeV mass gaps between the chargino and the neutralino, assuming the light slepton model.

(Left) Expected and observed 95% confidence level upper limit (UL) on the signal cross section as a function of $m(\tilde{\chi}_{1}^{\pm})$ and $\Delta m$, assuming the light slepton model with slepton mass defined as the average of the \tilde{\chi}_{2}^{0} and \tilde{\chi}_{1}^{\pm} masses, $x_{\widetilde{\ell}}=0.5$. The lower left edge of each bin represents the \{$m(\tilde{\chi}_{1}^{\pm})$,$\Delta m$\} combination used to calculate the UL on the signal cross section. For example, the lowest and leftmost bin corresponds to the UL on the signal cross section for the scenario with $m(\tilde{\chi}_{1}^{\pm}) = 100$ GeV and $\Delta m = 1$ GeV. (Right) Combined 95% CL UL on the cross section as a function of $m_{\tilde{\chi}_{2}^{0}}=m_{\tilde{\chi}_{1}^{\pm}}$, for $\Delta m=1$ GeV and $\Delta m=30$ GeV mass gaps between the chargino and the neutralino, assuming the light slepton model.

(Left) Expected and observed 95% confidence level upper limit (UL) on the signal cross section as a function of $m(\tilde{\chi}_{1}^{\pm})$ and $\Delta m$, assuming the \tilde{\chi}_{1}^{\pm} and \tilde{\chi}_{2}^{0} decays proceed via $W^{*}$ and $Z^{*}$. The lower left edge of each bin represents the \{$m(\tilde{\chi}_{1}^{\pm})$,$\Delta m$\} combination used to calculate the UL on the signal cross section. For example, the lowest and leftmost bin corresponds to the UL on the signal cross section for the scenario with $m(\tilde{\chi}_{1}^{\pm}) = 100$ GeV and $\Delta m = 1$ GeV. (Right) The 95% CL UL on the cross section as a function of $m_{\tilde{\chi}_{2}^{0}}=m_{\tilde{\chi}_{1}^{\pm}}$, for $\Delta m=1$ GeV and $\Delta m=30$ GeV mass gaps between the chargino and the neutralino, after combining 0 lepton and 1 lepton channels, assuming the \tilde{\chi}_{1}^{\pm} and \tilde{\chi}_{2}^{0} decays proceed via $W^{*}$ and $Z^{*}$.

(Left) Expected and observed 95% confidence level upper limit (UL) on the signal cross section as a function of $m(\tilde{\chi}_{1}^{\pm})$ and $\Delta m$, assuming the \tilde{\chi}_{1}^{\pm} and \tilde{\chi}_{2}^{0} decays proceed via $W^{*}$ and $Z^{*}$. The lower left edge of each bin represents the \{$m(\tilde{\chi}_{1}^{\pm})$,$\Delta m$\} combination used to calculate the UL on the signal cross section. For example, the lowest and leftmost bin corresponds to the UL on the signal cross section for the scenario with $m(\tilde{\chi}_{1}^{\pm}) = 100$ GeV and $\Delta m = 1$ GeV. (Right) The 95% CL UL on the cross section as a function of $m_{\tilde{\chi}_{2}^{0}}=m_{\tilde{\chi}_{1}^{\pm}}$, for $\Delta m=1$ GeV and $\Delta m=30$ GeV mass gaps between the chargino and the neutralino, after combining 0 lepton and 1 lepton channels, assuming the \tilde{\chi}_{1}^{\pm} and \tilde{\chi}_{2}^{0} decays proceed via $W^{*}$ and $Z^{*}$.

Example description

Combined 95% CL expected upper limit on the signal cross section as a function of $m_{\tilde{\chi}_{2}^{0}}=m_{\tilde{\chi}_{1}^{\pm}}$ for a $\Delta m=1$ GeV mass gap between the chargino and the lightest neutralino in the $W Z$ model.

Combined 95% CL expected upper limit on the signal cross section as a function of $m_{\tilde{\chi}_{2}^{0}}=m_{\tilde{\chi}_{1}^{\pm}}$ for a $\Delta m=50$ GeV mass gap between the chargino and the lightest neutralino in the $W Z$ model.

Combined 95% CL observed upper limit on the signal cross section as a function of $m_{\tilde{\chi}_{2}^{0}}=m_{\tilde{\chi}_{1}^{\pm}}$ for a $\Delta m=1$ GeV mass gap between the chargino and the lightest neutralino in the $W Z$ model.

Combined 95% CL observed upper limit on the signal cross section as a function of $m_{\tilde{\chi}_{2}^{0}}=m_{\tilde{\chi}_{1}^{\pm}}$ for a $\Delta m=50$ GeV mass gap between the chargino and the lightest neutralino in the $W Z$ model.

Covariance matrix from the combined fit of the $m_{ extrm{jj}}$ and $m_{ extrm{T}}$ distributions in the $0\ell extrm{jj}$ and $1\ell extrm{jj}$ search regions.