A package of fonts for displaying Feynman diagrams.
Version 0.3.3, 2009 October 8.
https://purl.org/nxg/dist/feynThis package is intended to produce relatively simple Feynman diagrams, primarily for use within equations.
This package differs from Thorsten Ohl’s
feynmf/feynmp package (at CTAN, or see the TeX
FAQ). FeynMP works by creating Metafont or MetaPost figures using a
preprocessor. It’s more general than this package, but is at its best
when creating relatively large diagrams, for figures. In contrast,
the present system consists of a carefully-designed font with which
you can easily write simple diagrams, within equations or within text, in a
size matching the surrounding text size.
The propagators and vertices which are implemented are those which
seem to appear most often in non-figure displays (the practical
definition of ‘appear most often’ is ‘which I wanted’ and ‘which people
asked me for’). I have no current plans to extend the package
further, but I’m willing add other features if you can make a case for
them.
The package is on CTAN, and is included in TeXLive but not, as far as I’m aware, teTeX. The arXiv started using TeXLive 2008 in summer 2008, so it should be available there from that date.
There is further documentation, plus numerous examples, in the package documentation.
[By the way, I have little idea of how many people actually use this package. If you do use it, I’d be most grateful if you could drop me a line just to say so]
Minor documentation improvements.{no,}globalbang options have been added to force
behaviour when necessary). Thanks to Bryan Chen for the bugreport.
It turned out that the .dtx documentation wasn’t
generated properly when called in the not-terribly-useful
\AlsoImplementation mode; fixed, and that mode is no
longer the default.feyn18.mf, feyn24.mf
and their textsize counterparts were not included in the 0.2
distribution; thanks to Purnendu Chakraborty from the Saha Institute
for discovering this. This release also includes fixed gluon loop
characters: they were all 1 module high before, but now have the
correct sizes.\momentum macro, or the
‘!’ abbreviation. This makes the ‘a’ character (the arrow) largely
redundant and the \vertexlabel macro rather less
important.
Initial version. The font was first produced in 1991 or so,
first released in 1994, and tidied up and more carefully re-released
as version 0.1 in 2001.Version 0.3.1 of the feyn package is included in the TeXLive 2008 distribution, so you may have it on your machine already. If not, or if you need a more up-to-date version, read on.
It’s also at CTAN, in /tex-archive/fonts/feyn/
Installation is much as usual.
feyn.ins – this will unpack the
style file feyn.sty amongst other files. Place this
‘somewhere where TeX can find it’. Similarly, place the
.mf files somewhere where the font-generation mechanism
for your platform can find them. For example, in the TeXLive
distribution, the feyn *.mf files appear in the directory
/usr/local/texlive/2008/texmf-dist/fonts/source/public/feyn/
and the feyn.sty file in
/usr/local/texlive/2008/texmf-dist/tex/latex/feyn/feyn.sty,
so that if I were installing them ‘privately’, I would put them in
/usr/local/texlive/texmf-local/fonts/source/local/feyn/
and
/usr/local/texlive/texmf-local/tex/latex/feyn/feyn.sty.
With the teTeX and TeXLive Unix distributions, the output of
kpsepath mf shows the list of places where TeX will look
for Metafont source files. The font files should be
generated on the fly when you first refer to them. See also the
relevant discussion in the TeX FAQ about ‘where LaTeX can find them’.feyn.dtx to obtain the
documentation, which is prebuilt in feyn.pdf (this should
generate the font files as a side-effect).You should be able to find generic instructions for installing LaTeX files at the TeX FAQ.