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\begin{document}
\begin{tabular}{l|r|rcl}
                               & Measured value $\ $         & \multicolumn{3}{c}{$\ $ World average [14]} \\ \hline
$M_{\chi\xspace_{ c\xspace\xspace 1}\xspace} - M_{\chi\xspace_{ c\xspace\xspace 0}\xspace}$   & $95.4 \pm 2.7 \pm 0.1 \ $      & 95.91 & $\pm$ & 0.83 \\ 
$M_{\chi\xspace_{ c\xspace\xspace 2}\xspace} - M_{\chi\xspace_{ c\xspace\xspace 0}\xspace}$     & $\ 144.3 \pm 2.6 \pm 0.2 \ $ & 141.45 & $\pm$ & 0.32 \\ 
$M_{\eta\xspace_ c\xspace\xspace\xspace(2S)} - M_{\eta\xspace_ c\xspace\xspace\xspace(1S)} \ $    & $653.5 \pm 4.2 \pm 0.4 \ $      & $\ $ 655.70 & $\pm$ & 1.48  
\end{tabular}
\end{document}
