deletions | additions       diff --git a/Measurements at the Z pole.tex b/Measurements at the Z pole.tex  index 6a85f65..f04e21e 100644  --- a/Measurements at the Z pole.tex  +++ b/Measurements at the Z pole.tex 
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\item high statistics data collection at the Z peak, towards the measurement of the Z partial widths, the determination of the number of light neutrinos, and the detection of rare decays;  \item high-statistics data taking with longitudinally-polarized beams, enable a precise determination of the weak mixing angle.  \end{itemize}  An extensive description of Electroweak measurements performed at LEP and SLC in 1988-1998 can be found in Ref.~\cite{ements_on_the_Z_resonance_2006}. It is beyond the scope of this article to revisit all the measurements in view of establishing the improvements potentially brought about by TLEP. Only a brief account of a few key measurements is given here. Typically, TLEP will bring a factor $10^5$ to the statistics accumulated at LEP, which corresponds to statistical uncertainties reduced by a factor 300! 300.  With such a huge reduction, it is clear that a detailed consideration of experimental systematic uncertainties will be essential before a precise conclusion be drawn on the ultimately achievable precisions. Above all, uncertainties in the theoretical interpretation will need to be revisited, which implies a significant new programme of calculations of higher-order Electroweak corrections.