i'm using the following to create .mp files of my graphs:
Code: Select all
\documentclass{article}
\usepackage{feynmp}
\begin{document}
\unitlength = 1mm
\begin{fmffile}{qqtt}
\begin{fmfgraph*}(40,30)
\fmfpen{thick}
\fmfleft{i1,i2}
\fmfright{o1,o2}
\fmf{fermion,label=$q(p_1)$}{i1,v1}
\fmf{fermion,label=$\bar{q}(p_2)$}{i2,v1}
\fmf{fermion,label=$\bar{t}(p_4)$}{v2,o2}
\fmf{fermion,label=$\bar{t}(p_3)$}{v2,o1}
\fmf{gluon,label=$g(k)$}{v1,v2}
\fmfdot{v1,v2}
\end{fmfgraph*}
\end{fmffile}
\end{document}
The label file looks like this:
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% qqtt.t1 -- generated from qqtt.mp
\fmfL(9.69545,6.19753,lt){$q(p_1)$}%
\fmfL(9.69545,23.80247,lb){$\bar {q}(p_2)$}%
\fmfL(20,12.8912,t){$g(k)$}%
\fmfL(34.0259,21.81778,lt){$\bar {t}(p_4)$}%
\fmfL(34.0259,8.18219,lb){$\bar {t}(p_3)$}%
Thanks
Pascal