[Ti*k*Z-Feynman](http://www.jpellis.me/projects/tikz-feynman) [![ctan.org](https://img.shields.io/ctan/v/tikz-feynman.svg)](https://ctan.org/pkg/tikz-feynman) [![Travis](https://img.shields.io/travis/JP-Ellis/tikz-feynman/master.svg)](https://travis-ci.org/JP-Ellis/tikz-feynman) ============================================================= Ti*k*Z-Feynman is a LaTeX package allowing Feynman diagrams to be easily generated within LaTeX with minimal user instructions and without the need of external programs. It builds upon the Ti*k*Z package and leverages the graph placement algorithms from Ti*k*Z in order to automate the placement of many vertices. Ti*k*Z-Feynman still allows fine-tuned placement of vertices so that even complex diagrams can still be generated with ease. Ti*k*Z-Feynman is made available through the [Comprehensive TeX Archive Network (CTAN)][ctan] and comes with some thorough [documentation][documentation] containing a tutorial and many examples. Please refer to the [project page][projectpage] for additional information. Ti*k*Z-Feynman is open source and contribution are welcome. If you have any suggestions, feature requests, or have found any bugs, feel free to create a new issue or pull request on Github. Below are a few example to demonstrate how easy diagram can be, and how extensible it can be. Many more are given in the [documentation][documentation]:

latex \feynmandiagram [horizontal=a to b] { i1 -- [fermion] a -- [fermion] i2, a -- [photon] b, f1 -- [fermion] b -- [fermion] f2, }; 

latex \feynmandiagram [large, vertical=e to f] { a -- [fermion] b -- [photon, momentum=$$k$$] c -- [fermion] d, b -- [fermion, momentum'=$$p_{1}$$] e -- [fermion, momentum'=$$p_{2}$$] c, e -- [gluon] f, h -- [fermion] f -- [fermion] i; }; 

latex \begin{tikzpicture} \begin{feynman} \vertex (a1) {$$\overline b$$}; \vertex[right=1cm of a1] (a2); \vertex[right=1cm of a2] (a3); \vertex[right=1cm of a3] (a4) {$$b$$}; \vertex[right=1cm of a4] (a5); \vertex[right=2cm of a5] (a6) {$$u$$}; \vertex[below=2em of a1] (b1) {$$d$$}; \vertex[right=1cm of b1] (b2); \vertex[right=1cm of b2] (b3); \vertex[right=1cm of b3] (b4) {$$\overline d$$}; \vertex[below=2em of a6] (b5) {$$\overline d$$}; \vertex[above=of a6] (c1) {$$\overline u$$}; \vertex[above=2em of c1] (c3) {$$d$$}; \vertex at ($(c1)!0.5!(c3) - (1cm, 0)$) (c2); \diagram* { {[edges=fermion] (b1) -- (b2) -- (a2) -- (a1), (b5) -- (b4) -- (b3) -- (a3) -- (a4) -- (a5) -- (a6), }, (a2) -- [boson, edge label=$$W$$] (a3), (b2) -- [boson, edge label'=$$W$$] (b3), (c1) -- [fermion, out=180, in=-45] (c2) -- [fermion, out=45, in=180] (c3), (a5) -- [boson, bend left, edge label=$$W^{-}$$] (c2), }; \draw [decoration={brace}, decorate] (b1.south west) -- (a1.north west) node [pos=0.5, left] {$$B^{0}$$}; \draw [decoration={brace}, decorate] (c3.north east) -- (c1.south east) node [pos=0.5, right] {$$\pi^{-}$$}; \draw [decoration={brace}, decorate] (a6.north east) -- (b5.south east) node [pos=0.5, right] {$$\pi^{+}$$}; \end{feynman} \end{tikzpicture}  [ctan]: https://ctan.org/pkg/tikz-feynman [documentation]: http://www.jpellis.me/projects/tikz-feynman/tikz-feynman/tikz-feynman.pdf [projectpage]: http://www.jpellis.me/projects/tikz-feynman Licence ------- Ti*k*Z-Feynman Feynman Diagrams with Ti*k*Z Copyright (C) 2016 Joshua Ellis This *documentation* may be redistributed and/or modified under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. The *code of this package* may be distributed and/or modified under the conditions of the LaTeX Project Public License, either version 1.3 of this license or (at your option) any later version. This work has the LPPL maintenance status `maintained'. The Current Maintainer of this work is Joshua Ellis. This package is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.