Feynman (4-Point Vertex)


Edit and compile if you like:



  \draw (-2,0) node[left] {$\varphi_a$} -- (2,0) node[right] {$\varphi_c$} (0,2) node[above] {$\varphi_b$} -- (0,-2) node[below] {$\varphi_d$};
  \draw[->,yshift=5pt] (-1.7,0) -- (-0.7,0) node[midway,above] {$p_1$};
  \draw[<-,yshift=5pt] (0.7,0) -- (1.7,0) node[midway,above] {$p_3$};
  \draw[->,xshift=5pt] (0,1.7) -- (0,0.7) node[midway,right] {$p_2$};
  \draw[<-,xshift=5pt] (0,-0.7) -- (0,-1.7) node[midway,right] {$p_4$};
  \draw[fill=white,postaction={pattern=north east lines}] (0,0) circle (0.25) node[right=5pt] {$\Gamma_{k,abcd}^{(4)}(p_1,p_2,p_3,p_4)$};

Click to download: feynman-4.tex
Open in Overleaf: feynman-4.tex
This file is available on tikz.netlify.app and on GitHub and is MIT licensed.
See more on the author page of Janosh Riebesell..

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