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\begin{document}
     
  
    
    \begin{tabular}{ llcccc }
    \hline
     & PID Cut & \multicolumn{2}{c}{Efficiency ($\%$)} & \multicolumn{2}{c}{Misidentification ($\%$)} \\
     &         & U & D & U & D \\
    \hline
    $K$ & $\textrm{DLL}_{K-\pi}>5$ & $83.3 \pm 0.2$ & $83.5 \pm 0.2$  & $5.3 \pm 0.1$  & $4.5 \pm 0.1$   \\
    $\pi$ & $\textrm{DLL}_{K-\pi}<0$  & $84.2 \pm 0.2$& $85.8 \pm 0.2$   & $5.3 \pm 0.1$   & $5.4 \pm 0.1$ \\
     $ D\xspace\xspace^-$ \xspace & & $ 84.1 \pm 0.2$ & $85.7 \pm 0.2$   & - & - \\
     $ D\xspace\xspace^-_s$ \xspace &   & $ 77.6 \pm 0.2$ & $78.4 \pm 0.2$ & - & - \\
    \hline
    \end{tabular}
  
\end{document}
