\begin{table}%t3
\caption{Best-fit parameter values and $1\sigma$ errors for the BBN
constraints on $\frac{\Delta\alpha}{\alpha_0}$.}
\label{resulbbn2}
%\centering
\small
\begin{tabular}{ccc}
\hline \hline
%&& \\[-8pt]
Data &$\frac{\Delta \alpha}{\alpha_0}\pm \sigma$&$\frac{\chi^2_{\rm min}}{N-1}$ \\ 
%&& \\[-8pt]
\hline 
%&& \\[-8pt]
$\De + \He + \Li$& $0.077 \pm 0.001$ & 23.28
\\ 
$\He + \Li$ & $0.077 \pm 0.001$&  45.18
\\ 
$\De + \Li$ & $ 0.129 \pm 0.006$&  1.58
\\ 
$\De + \He$ &  $-0.020 \pm 0.007$&  0.90 
\\ \hline
\end{tabular}
\end{table}