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\begin{document}
	
	
	
	
	\begin{tabular*}{0.45\textwidth}
	{@{\hspace{3mm}}l@{\extracolsep{\fill}}l@{\hspace{3mm}}}
	Parameter  & ~~~~~Value 
   \\[1mm]
  \hline 
  \\[-2mm]
   $N$                                      
   & $\phantom{-}186\pm24$   \\
   $\updelta m_{\mathrm{U}}$  
   &  $-359\pm40\text{\,ke\kern -0.1em V\!/}c^2\xspace$ 
   \\
   $\left| g \right| $  
   & $\phantom{-00}3\times10^4 \text{\,Ge\kern -0.1em V}\xspace 
   \,\mathrm{(fixed)}$  
	\end{tabular*}
\end{document}
