Formula_18957

\[S=\int \operatorname{tr}\left[\frac{1}{8} F_{\mu v} F_{\mu v}-\frac{1}{4 \alpha}\left(\partial_{\mu} A_{\mu}\right)^{2}-\frac{1}{2} \bar{c}\left(\square c-g \partial_{\mu}\left[A_{\mu}, c\right]\right)\right] d x .\]