File:Moeller-Scattering u-channel.pdf

\RequirePackage{luatex85}
\documentclass{standalone}
\usepackage[compat=1.1.0]{tikz-feynman}

\begin{document}
% Moeller Scattering u channel. 
\feynmandiagram[
    xscale= 1.4,
    horizontal= e1 to e4,
    horizontal= e2 to e3,
  ] {
    % Explicitly add the momentum information to contrast this to the t-channel
    % Explicitly add dots at the interaction vertices (suggested guideline for DE-WP)
    e2 -- [fermion, momentum'=$p_2$] v2 [dot] -- [fermion, momentum'=$p_3$] e3,
    e1 -- [fermion, momentum=$p_1$]  v1 [dot] -- [fermion, momentum=$p_4$] e4,
    v1 -- [photon, momentum=$p_1 - p_4$] v2,
};
\end{document}