Floating around on the internet for the standard model of physics in a relatively short form. I want to typeset this in LaTeX in order to print it. However, I can't find a way to typeset the crossed out D
in the second line.
So far, I have this
\documentclass[a4paper,10pt]{scrartcl}
\usepackage{amsmath,amssymb}
\begin{document}
What part of
\begin{align*}
\mathcal{L} &= - \frac{1}{4} F_{\mu \nu} F^{\mu \nu} \\
&+ i \bar{\psi} D \psi + h.c. \\
&+ \bar{\psi}_i y_{ij} \psi_j \phi + h.c. \\
&+ |D_\mu \phi|^2 - V(\phi)
\end{align*}
didn't you understand?
\end{document}