Resize table and caption
Here is working example of resizing table together with caption.
\documentclass{article}
\usepackage{graphicx}
\begin{document}
\begin{table}[htbp]
\centering
\resizebox{0.5\textwidth}{!}{\begin{minipage}{\textwidth}
\caption{Table caption}
\begin{tabular}{|c|c|c|c|}
\hline
$t_0~(MeV\cdot fm^3 ) $ & $t_3~(MeV\cdot fm^6)$ & $v_0/\mu~(MeV\cdot fm)$ & $1/\mu~(fm)$\\
\hline
$$ -497.726 & $17270$ & $-166.924$ & $0.45979$\\
\hline
\end{tabular}
\end{minipage}}
\end{table}
\end{document}
FIXED: Example was edited. Thanks!