deletions | additions       diff --git a/EnergySensitivity.tex b/EnergySensitivity.tex  index b46f4c9..91ccbd0 100644  --- a/EnergySensitivity.tex  +++ b/EnergySensitivity.tex 
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The maximum centre-of-mass energy of the FCC-ee is yet unknown. It was inferred in Ref.~\cite{Bicer_2014} that, if the total RF voltage were increased by a factor 3 with respect to the baseline, a centre-of-mass energy of 500\,GeV could be reached, and an integrated luminosity of $500\, {\rm fb}^{-1}$ could be delivered over a period of three years, as displayed in Fig.~\ref{fig:lumi} with the red dashed line. In the framework of the FCC, however, the interest of such an upgrade could not be demonstrated for the physics of the Higgs boson~\cite{Bicer_2014}. It is interesting to re-evaluate this statement in view of the physics of the top quark.  The centre-of-mass energy was therefore varied from 350 to 500\,GeV, and the corresponding integrated luminosity was varied linearly with $\sqrt{s}$ from 2.6 to 0.5\,${\rm ab}^{-1}$. The expected uncertainties on the top electroweak form factors, $\sigma(F_{1V}^\gamma)$, $\sigma(F_{1V}^Z)$, $\sigma(F_{1A}^Z)$, $\sigma(F_{2V}^\gamma)$ and $\sigma(F_{2V}^Z)$, were determined as explained in Section~\ref{sec:optimal}, the previous section,  with corrections for the lepton energy and angular resolutions, the event selection efficiency, and the detector acceptance, as described at the beginning of Section~\ref{sec:sensitivities}, above,  for each value of the centre-of-mass energy. The variation of these uncertainties with $\sqrt{s}$ is shown in Fig.~\ref{fig:variation}.