Translation Error: No translation available for Upper horizontal bracket Please add a translation for "hbrack/t" in the file 'AMS LaTeX.tdl.'
Translation Error:
No translation available for Upper horizontal bracket
Please add a translation for "hbrack/t" in the file 'AMS LaTeX.tdl.'
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\documentclass{article}
\usepackage{simplewick}
\begin{document}
\begin{eqnarray}
\contraction{}{\psi}{|p}{,} \psi |p,s \rangle = u^s (p) &\quad& \langle
p \contraction{}{\vphantom{\bar\psi},}{s|}{\bar{\psi}} ,s|\bar{\psi}
= \bar{u}^s (p) \\ \nonumber
\contraction{}{\bar{\psi}}{|k}{,} \bar{\psi}|k,s \rangle = \bar{v}^s (k)
&\quad& \langle k \contraction{}{\vphantom{\psi},}{s|}{\psi} ,s| \psi
= v^s (k) \nonumber
\end{eqnarray}
\end{document}
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