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latex:feynman_file [2023/02/04 15:39] – [Output] iwnlatex:feynman_file [2023/02/04 16:45] (current) – iwn
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 \begin{figure}[h] \begin{figure}[h]
-  \vspace{10mm} +\vspace{10mm} 
-  \centering +\centering 
-  \begin{fmffile}{feynman-compton}+\begin{fmffile}{feynman-compton}
   \begin{fmfgraph*}(150,100)   \begin{fmfgraph*}(150,100)
     \fmfleft{i1,i2}     \fmfleft{i1,i2}
- \fmfright{o1,o2} +    \fmfright{o1,o2} 
- \fmflabel{$\gamma$}{i2} +    \fmflabel{$\gamma$}{i2} 
- \fmflabel{$e^-$}{i1} +    \fmflabel{$e^-$}{i1} 
- \fmflabel{$\gamma$}{o1} +    \fmflabel{$\gamma$}{o1} 
- \fmflabel{$e^-$}{o2} +    \fmflabel{$e^-$}{o2} 
- \fmf{photon}{i2,v2} +    \fmf{photon}{i2,v2} 
- \fmf{fermion}{i1,v1,v2,o2} +    \fmf{fermion}{i1,v1,v2,o2} 
- \fmf{photon}{v1,o1}+    \fmf{photon}{v1,o1}
   \end{fmfgraph*}   \end{fmfgraph*}
-  \end{fmffile} +\end{fmffile} 
-  \vspace{5mm} +\vspace{5mm} 
-  \caption{Feynman diagram for Compton scattering} %\label{compton}+\caption{Feynman diagram for Compton scattering} %\label{compton}
 \end{figure} \end{figure}
  
Line 57: Line 57:
  
  
-===== Method 2: Macro =====+===== Method 2: feynmp-auto (standalone) ===== 
 + 
 +To create a standalone Feynman diagram, use the ''standalone'' class: 
 + 
 +<code latex feynman_standalone.tex> 
 +% !TEX program = pdflatexmk 
 +% !TEX parameter = -shell-escape 
 +% Author: Izaak Neutelings (February 2023) 
 +\documentclass[10pt,border=2pt]{standalone} 
 +\usepackage{amsmath} 
 +\usepackage{feynmp-auto} 
 + 
 +\begin{document} 
 + 
 +\fmfframe(0,15)(0,15){ % padding (LTRB) 
 +\begin{fmffile}{feynman-compton} 
 +  \begin{fmfgraph*}(110,80) 
 +    \fmfleft{i1,i2} 
 +    \fmfright{o1,o2} 
 +    \fmflabel{$\gamma$}{i2} 
 +    \fmflabel{$e^-$}{i1} 
 +    \fmflabel{$\gamma$}{o1} 
 +    \fmflabel{$e^-$}{o2} 
 +    \fmf{photon}{i2,v2} 
 +    \fmf{fermion}{i1,v1,v2,o2} 
 +    \fmf{photon}{v1,o1} 
 +  \end{fmfgraph*} 
 +\end{fmffile} 
 +} 
 + 
 +\end{document} 
 +</code> 
 + 
 +To create one multiple PDF with one Feynman diagram per page, add the option ''multi=page,crop'' to the ''standalone'' class and wrap each ''fmffile'' around the ''page'' environment: 
 +<code latex> 
 +% !TEX program = pdflatexmk 
 +% !TEX parameter = -shell-escape 
 +% Author: Izaak Neutelings (February 2023) 
 +\documentclass[10pt,border=2pt,multi=page,crop]{standalone} 
 +\usepackage{amsmath} 
 +\usepackage{graphicx} 
 +\usepackage{feynmp-auto} 
 + 
 +\begin{document} 
 + 
 +\begin{page} 
 +\fmfframe(0,15)(0,15){ % padding (LTRB) 
 +\begin{fmffile}{feynman-compton} 
 +  \begin{fmfgraph*}(110,80) 
 +    \fmfleft{i1,i2} 
 +    \fmfright{o1,o2} 
 +    \fmflabel{$\gamma$}{i2} 
 +    \fmflabel{$e^-$}{i1} 
 +    \fmflabel{$\gamma$}{o1} 
 +    \fmflabel{$e^-$}{o2} 
 +    \fmf{photon}{i2,v2} 
 +    \fmf{fermion}{i1,v1,v2,o2} 
 +    \fmf{photon}{v1,o1} 
 +  \end{fmfgraph*} 
 +\end{fmffile} 
 +} 
 +\end{page} 
 + 
 +\begin{page} 
 +\fmfframe(0,15)(0,15){ % padding (LTRB) 
 +\begin{fmffile}{feynman-scat} 
 +  \begin{fmfgraph*}(110,80) 
 +    \fmfleft{i1,i2} 
 +    \fmfright{o1,o2} 
 +    \fmflabel{$\mu^-$}{i1} 
 +    \fmflabel{$e^-$}{i2} 
 +    \fmflabel{$\mu^-$}{o1} 
 +    \fmflabel{$e^-$}{o2} 
 +    \fmf{fermion}{i1,v1,o1} 
 +    \fmf{fermion}{i2,v2,o2} 
 +    \fmf{photon,label=$\gamma$}{v1,v2} 
 +  \end{fmfgraph*} 
 +\end{fmffile} 
 +} 
 +\end{page} 
 + 
 +\end{document} 
 +</code> 
 + 
 + 
 +===== Method 3: Macro =====
  
 This is a handy macro that allows you to compile Feynman graphs in LaTeX documents, without the need for extra scripts ([[https://tex.stackexchange.com/questions/20241/how-to-use-kile-with-feynmf-or-feynmp|source]]).  This is a handy macro that allows you to compile Feynman graphs in LaTeX documents, without the need for extra scripts ([[https://tex.stackexchange.com/questions/20241/how-to-use-kile-with-feynmf-or-feynmp|source]]). 
Line 80: Line 165:
 Simply include the macro in the preamble. (Tested only in TeXShop on a Mac.) Simply include the macro in the preamble. (Tested only in TeXShop on a Mac.)
  
-<code latex feynman_script.tex>+<code latex feynman_macro.tex>
 % !TEX program = pdflatexmk % !TEX program = pdflatexmk
 % !TEX parameter = -shell-escape % !TEX parameter = -shell-escape
Line 110: Line 195:
  
 \begin{figure}[h] \begin{figure}[h]
-  \vspace{10mm} +\vspace{10mm} 
-  \centering +\centering 
-  \begin{fmffile}{feynman-compton}+\begin{fmffile}{feynman-compton}
   \begin{fmfgraph*}(150,100)   \begin{fmfgraph*}(150,100)
     \fmfleft{i1,i2}     \fmfleft{i1,i2}
- \fmfright{o1,o2} +    \fmfright{o1,o2} 
- \fmflabel{$\gamma$}{i2} +    \fmflabel{$\gamma$}{i2} 
- \fmflabel{$e^-$}{i1} +    \fmflabel{$e^-$}{i1} 
- \fmflabel{$\gamma$}{o1} +    \fmflabel{$\gamma$}{o1} 
- \fmflabel{$e^-$}{o2} +    \fmflabel{$e^-$}{o2} 
- \fmf{photon}{i2,v2} +    \fmf{photon}{i2,v2} 
- \fmf{fermion}{i1,v1,v2,o2} +    \fmf{fermion}{i1,v1,v2,o2} 
- \fmf{photon}{v1,o1}+    \fmf{photon}{v1,o1}
   \end{fmfgraph*}   \end{fmfgraph*}
-  \end{fmffile} +\end{fmffile} 
-  \vspace{5mm} +\vspace{5mm} 
-  \caption{Feynman diagram for Compton scattering} %\label{compton}+\caption{Feynman diagram for Compton scattering} %\label{compton}
 \end{figure} \end{figure}
  
Line 135: Line 220:
 ===== Output ===== ===== Output =====
  
-{{ latex:feynman:feynman.png ? 2000 }}+{{ latex:feynman:feynman-auto.png ? 2000 }}
latex/feynman_file.1675521570.txt.gz · Last modified: 2023/02/04 15:39 by iwn

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