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\begin{document}
 
\begin{tabular}{lcc}
\hline
Mode        & \multicolumn{2}{c}{Efficiency [$10^{-4}$]} \\
    & Run~1 & Run~2 \\
\hline
\noalign{\vskip 1mm}  
 $ B\xspace\xspace^0_ s\xspace\xspace\xspace\!\rightarrow\xspace  D\xspace\xspace_{ s\xspace\xspace1}(2536)^{\mp}\xspace K\xspace\xspace^\pm\xspace$ \xspace (photon chain) & $18.70\pm0.27$ & $28.90\pm0.21$\\
 $ B\xspace\xspace^0_ s\xspace\xspace\xspace\!\rightarrow\xspace  D\xspace\xspace_{ s\xspace\xspace1}(2536)^{\mp}\xspace K\xspace\xspace^\pm\xspace$ \xspace ( $\pi\xspace\xspace^0$ \xspace chain) & $22.25\pm0.30$ & $34.37\pm0.26$\\
 $ B\xspace\xspace^0\xspace\!\rightarrow\xspace  D\xspace\xspace_{ s\xspace\xspace1}(2536)^{\mp}\xspace K\xspace\xspace^\pm\xspace$ \xspace (photon chain) & $17.17\pm0.25$ & $25.80\pm0.20$\\
 $ B\xspace\xspace^0\xspace\!\rightarrow\xspace  D\xspace\xspace_{ s\xspace\xspace1}(2536)^{\mp}\xspace K\xspace\xspace^\pm\xspace$ \xspace ( $\pi\xspace\xspace^0$ \xspace chain) & $22.09\pm0.30$ & $32.21\pm0.22$\\
$ B\xspace\xspace^0\xspace\!\rightarrow\xspace \kern 0.18em\overline{\kern -0.18em  D\xspace}\xspace{}^0\xspace K\xspace\xspace^+\xspace K\xspace\xspace^-\xspace\xspace$& $13.87\pm0.07$ & $15.81\pm0.09$\\
\hline
\end{tabular} 
\end{document}
