new unit for speed of light

thesis/chapters/chap5_alcap_setup.tex

@@ -29,7 +29,7 @@ scintillators for neutron measurements were also tested in this run.
 Muons in the $\pi$E1 beam line are decay products of pions created
 as a \SI{590}{\mega\electronvolt} proton beam hits a thick carbon target. The
 beam line was designed to deliver muons with momenta ranging from
-\SIrange{10}{500}{\mega\electronvolt\per\cc} and momentum spread from
+\SIrange{10}{500}{\mega\electronvolt\per\hepclight} and momentum spread from
 \SIrange{0.26}{8.0}{\percent}~\cite{Foroughli.1997}. The beam parameters can
 be tuned by adjusting magnets and slits along the beam line.
 %These parameters can be
@@ -56,7 +56,7 @@ be tuned by adjusting magnets and slits along the beam line.
 One of the main requirements of the AlCap experiment was a low energy muon beam
 with narrow momentum bite in order to achieve a high fraction of stopping muons
 in the very thin targets. In this Run 2013, muons from
-\SIrange{28}{45}{\MeV\per\cc} and momentum spread of 1\% and
+\SIrange{28}{45}{\MeV\per\hepclight} and momentum spread of 1\% and
 3\% were used. 
 
 For part of the experiment the target was replaced with one of the silicon
@@ -696,7 +696,7 @@ at X-rays of interest are listed in \cref{tab:xray_eff}.
 %\label{sub:muon_momentum_scanning}
 %Before taking any data, we carried out the muon momentum scanning to understand
 %the muon beam, as well as calibrate the detector system. The nominal muon
-%momentum used in the Run 2013 had been tuned to 28~MeV\cc\ before the run. By
+%momentum used in the Run 2013 had been tuned to 28~MeV\hepclight\ before the run. By
 %changing simultaneously the strength of the key magnet elements in the $\pi$E1
 %beam line with the same factor, the muon beam momentum would be scaled with the
 %same factor.
@@ -712,8 +712,8 @@ at X-rays of interest are listed in \cref{tab:xray_eff}.
       %\toprule
       %\textbf{Scaling} & \textbf{Momentum} & \textbf{Kinetic energy}
       %& \textbf{Momentum spread}\\ 
-      %\textbf{factor} & \textbf{(MeV\per\cc)} & \textbf{(MeV)}
-      %& \textbf{(MeV\per\cc, 3\% FWHM)}\\ 
+      %\textbf{factor} & \textbf{(MeV\per\hepclight)} & \textbf{(MeV)}
+      %& \textbf{(MeV\per\hepclight, 3\% FWHM)}\\ 
       %\midrule 
       %1.03 &   28.84 &     3.87&    0.87\\
       %1.05 &   29.40 &     4.01&    0.88\\
@@ -790,7 +790,7 @@ sets are shown in \cref{tb:stat}.
     \end{tabular}
   \end{center}
   \caption{Run statistics. Momentum scaling factors are normalised to
-    \SI{28}{\MeV\per\cc}.}
+    \SI{28}{\MeV\per\hepclight}.}
   \label{tb:stat} 
 \end{table}