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\begin{document}
\begin{tabular}{lcc}
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\\[-2.20ex]
Source          & ${\cal{B}(\kern 0.18em\overline{\kern -0.18em  B\xspace}{}\xspace^0_ s\xspace\xspace\xspace\rightarrow\xspace D\xspace\xspace^+_ s\xspace\xspace\xspace K^-\pi^+\pi^-)\over \cal{B}(\kern 0.18em\overline{\kern -0.18em  B\xspace}{}\xspace^0_ s\xspace\xspace\xspace\rightarrow\xspace D\xspace\xspace^+_ s\xspace\xspace\xspace\pi^-\pi^+\pi^-)}$ & ${\cal{B}(\kern 0.18em\overline{\kern -0.18em  B\xspace}{}\xspace^0\xspace\rightarrow\xspace D\xspace\xspace^+_ s\xspace\xspace\xspace K^-\pi^+\pi^-)\over\cal{B}(\kern 0.18em\overline{\kern -0.18em  B\xspace}{}\xspace^0_ s\xspace\xspace\xspace\rightarrow\xspace D\xspace\xspace^+_ s\xspace\xspace\xspace K^-\pi^+\pi^-)}$ \\
\\[-2.20ex]
\hline
$f_s/f_d$            &     -      &              7.9   \\
$M(X_{s,d})>3~ {\mathrm{\,Ge\kern -0.1em V\!/}c^2}\xspace$ &    2.2      &             7.0  \\
Efficiency           &    1.6      &              1.9 \\
PID                  &    2.2      &              0.0  \\
Trigger              &    2.0      &              2.0 \\
Signal yields        &    4.0      &              6.9 \\
Simulated sample size &    3.0      &              3.0 \\
\hline
Total               &     6.4     &               13.4    \\
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\end{tabular}
\end{document}
