\begin{table}%t1
\par
%\centering
\par
\caption{\label{stopping_tab}Analytical fit to the electron stopping power in solid carbon.}
       \begin{tabular}{c c c c}     % 4 columns 
                 \hline\hline       
          \noalign{\smallskip}
          \multicolumn{4}{c}{$S(E) = h~\log(1+a~E)~/~f~E^{g}+b~E^{d}+c~E^{e}$}  \\ 
           \hline
           $a$  &  $b$  &  $c$  &  $d$   \\[1.5mm]
           --0.000423375  &  $-3.57429\times10^{-11}$  &  $-3.37861\times10^{-7}$  &  --3.18688  \\
             \hline
             $e$  &  $f$  &  $g$  &  $h$   \\[1.5mm]
               --0.587928     &  --0.000232675               &   1.53851                   &  1.41476  \\
                  \hline 
        \end{tabular}
\end{table}