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\begin{document}
  
  
  
    \begin{tabular}{lc}
      \hline
      Contribution                          & Value in \% \\
      \hline
      ${\cal{B}}(\tau\xspace^+\xspace\!\rightarrow\xspace 3\pi\xspace\xspace\overline{\nu\xspace}\xspace_\tau\xspace\xspace)/{\cal{B}}(\tau\xspace^+\xspace\!\rightarrow\xspace 3\pi\xspace\xspace(\pi\xspace\xspace^0\xspace)\overline{\nu\xspace}\xspace_\tau\xspace\xspace)$                     & $0.7$ \\
      Form factors (template shapes)        & $0.7$ \\
      Form factors (efficiency)                                     & $1.0$ \\
       $\tau\xspace$ \xspace polarization effects           & $0.4$ \\
      Other  $\tau\xspace$ \xspace decays                   & $1.0$ \\
      $B\rightarrow\xspace D^{**}\tau^+\nu_{\tau}$           & $2.3$ \\
      $B_s^0\rightarrow\xspace D_s^{**}\tau^+\nu_{\tau}$ feed-down               & $1.5$ \\
    \hline
      $D_s^+ \rightarrow\xspace 3\pi X$ decay model                            & $2.5$ \\
      $D_s^+$, $D^0$ and $D^+$ template shape                  & $2.9$ \\
      $B\rightarrow\xspace D^{*-} D_s^+ (X)$ and $B\rightarrow\xspace D^{*-}D^0(X)$ decay model   & $2.6$ \\
      $ D\xspace\xspace^{*-}\xspace 3\pi\xspace\xspace X$ from  $ B\xspace$ \xspace decays                              & $2.8$ \\
      Combinatorial background (shape + normalization)          & $0.7$ \\
      \hline
      Bias due to empty bins in templates                       & $1.3$ \\
      Size of simulation samples                                & $4.1$ \\
      \hline
      Trigger acceptance                                            & $1.2$ \\
      Trigger efficiency                                            & $1.0$ \\
      Online selection                                              & $2.0$ \\
      Offline selection                                             & $2.0$ \\
      Charged-isolation algorithm                                   & $1.0$ \\
      Particle identification                                       & $1.3$ \\
      Normalization channel                                         & $1.0$ \\
      Signal efficiencies (size of simulation samples)              & $1.7$ \\
      Normalization channel efficiency (size of simulation samples) &
                                                                      $1.6$ \\
      Normalization channel efficiency (modeling of $ B\xspace\xspace^0\xspace\rightarrow\xspace D\xspace\xspace^{*-}\xspace
      3\pi$) & $2.0$ \\
      \hline
      Total uncertainty                                             & $9.1$ \\
      \hline
    \end{tabular}
\end{document}
