In my t-channel Feynman diagram (with tikz-Feynman), the lower two particles of the t-channel are switched. It appears that for s-channel, the right hand side particles are switched too.
Code for t-channel:
\documentclass[a4paper]{article}
\usepackage{physics}
\usepackage{graphicx}
\usepackage[compat=1.1.0]{tikz-feynman}
\begin{document}
t-channel
\[\feynmandiagram [large, vertical=a to b] {
i1 [particle=\(\nu\)] -- [fermion, momentum=\(q\)] a -- [boson, momentum=\(k\)] f1 [particle=\(W^+\)],
a -- [fermion, momentum=\(p\)] b,
i2 [particle=\(\bar\nu\)] -- [anti fermion, momentum=\(q'\)] b,
b -- [boson, momentum=\(k'\)] f2 [particle=\(W^-\)],
};
\]
\end{document}
Expected output:
Got:
How can this be fixed?