[Tex/LaTex] How to do Wick contraction with Dirac bracket

Question

So I would like to be able to draw Wick contraction with Dirac bracket, the Dirac bracket is produced with package physics, and the mwe is

\documentclass{article}

\usepackage{physics}

\begin{document}
$$
\mathcal{M}_{\hat{s}} \sim \mel**{k , k'}{\overline{\psi}_x \psi _x \overline{\psi}_y \psi _y}{p , p'}
$$
\end{document}

The kind of effect I would like to achieve with this bracket is

Sorry that my question was not clear, I was not trying to achieve a red colored Wick contraction lines.

The reason why I would like to use this package physics is, it is the only package I know that would nicely adjust the height of the angled bracket as well as the vertical lines in Dirac bracket, so I would like to stay with this package.

The problem with drawing the Wick contractions is, neither simplewick nor simpler-wick would work, so I am wondering if there is really a solution.

Also, I know it is always possible to do anything with tikz and that is something I could do, but I would appreciate if someone could offer a neater solution.

Answer 1

\langle and \rangle will scale and work with simpler-wick:

\documentclass{article}

\usepackage{simpler-wick}

\begin{document}
\[
\mathcal{M}_{\hat{s}} \sim 
\langle
 \wick{
        \c1 k, \c2 k'
        \vert
        \overline{\c1 \psi}_x \psi_x \overline{\psi}_y \c2 \psi_y
        \vert
        p, p'
  }
\rangle
\]
\end{document}