\newpage
% \onecolumn
%-------------------------------------------------------------------------------
\section{\File{atlassnippets.sty}}

Turn on including these definitions with the option \Option{snippets} and off with the option \Option{snippets=false}.

\input{atlassnippets}
% \twocolumn


\newpage
%-------------------------------------------------------------------------------
\section{\File{atlasunit.sty}}

Turn on including these definitions with the option \Option{unit} and off with the option \Option{unit=false}.

\input{atlasunit}

\noindent Lower case versions of the units also exist, e.g.\ \verb|\tev|, \verb|\gev|, \verb|\mev|, \verb|\kev|, and
\verb|\ev|.

As mentioned above, it is highly recommended to use a units package instead of
these definitions. \Package{siunitx} is the preferred package; a good alternative is \Package{hepunits}.
If either of these packages are used \File{atlasunit.sty} is not needed.

Most units that are needed in ATLAS documents are already defined by \Package{siunitx} or
are defined in \File{atlaspackage.sty}.
A selection of them is given below.
In order to use them in your document the unit should be included in
\verb|\unit| or \verb|\qty|:

\begin{xltabular}{\textwidth}{lX lX}
\verb|\unit{\TeV}| & \unit{\TeV} &
\verb|\unit{\GeV}| & \unit{\GeV} \\
\verb|\unit{\MeV}| & \unit{\MeV} &
\verb|\unit{\keV}| & \unit{\keV} \\
\verb|\unit{\eV}|  & \unit{\eV} &
\verb|\unit{\TeVc}| & \unit{\TeVc} \\
\verb|\unit{\GeVc}| & \unit{\GeVc} &
\verb|\unit{\MeVc}| & \unit{\MeVc} \\
\verb|\unit{\keVc}| & \unit{\keVc} &
\verb|\unit{\eVc}|  & \unit{\eVc} \\
\verb|\unit{\TeVcc}| & \unit{\TeVcc} &
\verb|\unit{\GeVcc}| & \unit{\GeVcc} \\
\verb|\unit{\MeVcc}| & \unit{\MeVcc} &
\verb|\unit{\keVcc}| & \unit{\keVcc} \\
\verb|\unit{\eVcc}|  & \unit{\eVcc} &
\verb|\unit{\nb}| & \unit{\nb} \\
\verb|\unit{\pb}| & \unit{\pb} &
\verb|\unit{\fb}| & \unit{\fb} \\
\verb|\unit{\per\fb}| & \unit{\per\fb} &
\verb|\unit{\per\pb}| & \unit{\per\pb} \\
\verb|\unit{\per\nb}| & \unit{\per\nb} &
\verb|\unit{\ifb}| & \unit{\ifb} \\
\verb|\unit{\ipb}| & \unit{\ipb} &
\verb|\unit{\inb}| & \unit{\inb} \\
\verb|\unit{\Hz}|  & \unit{\Hz} &
\verb|\unit{\kHz}| & \unit{\kHz} \\
\verb|\unit{\MHz}| & \unit{\MHz} &
\verb|\unit{\GHz}| & \unit{\GHz} \\
\verb|\unit{\degr}| & \unit{\degr} &
\verb|\unit{\m}| & \unit{\m} \\
\verb|\unit{\cm}| & \unit{\cm} &
\verb|\unit{\mm}| & \unit{\mm} \\
\verb|\unit{\um}| & \unit{\um} &
\verb|\unit{\micron}| & \unit{\micron} \\
\end{xltabular}
