%
% Moeller scattering
%
% Comment in the lines from \documentclass to \begin{document}
% and from \write18 to \end{document}
% to use the standalone package for testing the Feynman graphs
% You should also change the fmffile name to moeller-mp
% \documentclass{standalone}

% \usepackage{feynmp}
% \DeclareGraphicsRule{*}{mps}{*}{}

% \unitlength=1mm
% \begin{document}
\begin{fmffile}{moeller}
  \begin{fmfgraph*}(40,30)
    \fmfleft{i1,i2}
    \fmflabel{$e^{-}$}{i1}
    \fmflabel{$e^{-}$}{i2}
    \fmfright{o1,o2}
    \fmflabel{$e^{-}$}{o1}
    \fmflabel{$e^{-}$}{o2}
    \fmf{fermion, fore=blue}{i1,v1,o1}
    \fmf{fermion, fore=blue}{i2,v2,o2}
    \fmf{photon,label=$\gamma$}{v1,v2}
    \fmfdot{v1,v2}
  \end{fmfgraph*}
\end{fmffile}
% Include this command for Metapost
% \write18{mpost moeller-mp}
% \end{document}
