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\begin{document}
\centering

$
\begin{array}{cr@{\hspace{1mm}\pm\hspace{1mm}}lr@{\hspace{1mm}\pm\hspace{1mm}}l}
\toprule
& \multicolumn{2}{c}{7\mathrm{\,Te\kern -0.1em V}\xspace} & \multicolumn{2}{c}{8\mathrm{\,Te\kern -0.1em V}\xspace} \\   
\midrule
 {\cal B}\left(D_s^-\rightarrow\xspace \phi \left(\mu^+\mu^-\right) \pi^-\right)\xspace\xspace & \multicolumn{2}{r@{\hspace{1mm}\pm\hspace{1mm}}}{\left(1.32\right.} & \multicolumn{2}{@{}l}{\left.0.10\right) \times 10^{-5}}\\
 {\cal B}\left(D_s^-\rightarrow\xspace \tau^- \bar{\nu}_{\tau}\right)\xspace\xspace & \multicolumn{2}{r@{\hspace{1mm}\pm\hspace{1mm}}}{\left(5.61\right.} & \multicolumn{2}{@{}l}{\left.0.24\right) \times 10^{-2}}\\
f^{D_{s}}_{\tau} & 0.78 & 0.04 & 0.80 & 0.03\\
\rm{\epsilon\mathstrut_{cal}}^{R}/
\rm{\epsilon\mathstrut_{sig}}^{R}
& 0.898 & 0.060 & 0.912 & 0.054\\  
\rm{\epsilon\mathstrut_{cal}}^{T}/
\rm{\epsilon\mathstrut_{sig}}^{T}  
& 0.659 & 0.006 & 0.525 & 0.040\\  
N_{\rm cal} & 28\,200 & 440 & 52\,130 & 700\\
\alpha & \left( 7.20 \right. & \left. 0.98 \right) \times 10^{-9} & \left( 3.37 \right. & \left. 0.50 \right) \times 10^{-9}\\
\bottomrule
\end{array}
$
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