how to draw Feynman diagrams in latex documents
started: oct 2007
updated: oct 2007
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this document teaches how to use Thorsten Ohl's Feynmf package to draw
Feynman diagrams in tex documents.

1. get feynmf package (http://www.ctan.org/tex-archive/macros/latex/contrib/feynmf/)

2. inside tex document add in preamble:
	\usepackage{feynmp}

3. put something like this where you want the figure:
\begin{fmffile}{test1}
\begin{center}
\begin{fmfgraph*}(160,100)
\fmfleftn{i}{2} \fmfrightn{o}{4}
\fmflabel{$e^-$}{i1}
\fmflabel{$e^+$}{i2}
\fmflabel{$\mu_+$}{o1}
\fmflabel{$\nu_{\mu}$}{o2}
\fmflabel{$s$}{o3}
\fmflabel{$\noexpand\bar c$}{o4}
\fmf{fermion}{i1,v1,i2}
\fmf{boson,label=$\gamma,,Z$}{v1,v2}
\fmf{boson}{v3,v2,v4}
\fmf{fermion}{o1,v3,o2}
\fmf{fermion}{o4,v4,o3}
\fmfdot{v1,v3,v4}\fmfblob{.12w}{v2}
\end{fmfgraph*}
\end{center}
\end{fmffile}

4. typeset the tex file:
	latex test_file

5. this will generate mp files. Let's call it fig1.mp. make postscript file (EPS) from it:
	mpost fig1
repeat for each figure. shell commands to do this are
	in bash: for a in *.mp; do mpost $a; done
	in csh: foreach a (*.mp)
		foreach? mpost $a
		foreach? end .

6. typeset again:
	latex test_file

7. convert DVI file to PDF if needed:
	dvipdf test_file

done!
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good tutorial site: http://osksn2.hep.sci.osaka-u.ac.jp/~taku/osx/feynmp.html