deletions | additions       diff --git a/EnergySensitivity.tex b/EnergySensitivity.tex  index 9edd8fb..b46f4c9 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 gradient voltage  were multiplied increased  by three 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, but it boson~\cite{Bicer_2014}. It  is interesting to re-evaluate this statement in view of the physics of the top-quark. 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, $\delta F_{1V}^\gamma$, $\delta F_{1V}^Z$, $\delta F_{1A}^Z$, $\delta F_{2V}^\gamma$ $\sigma(F_{1V}^\gamma)$, $\sigma(F_{1V}^Z)$, $\sigma(F_{1A}^Z)$, $\sigma(F_{2V}^\gamma)$  and $\delta F_{2V}^Z$, $\sigma(F_{2V}^Z)$,  were determined as explained in Section~\ref{sec:optimal}, correcting with corrections  for the lepton energy and angular resolutions, the  event selection efficiency efficiency,  and the detector acceptance acceptance, as described  at the beginning of Section~\ref{sec:sensitivities}, for each value of the  centre-of-mass energy. The variation of these uncertainties with $\sqrt{s}$ is shown in Fig.~\ref{fig:variation}.