deletions | additions       diff --git a/Timescale.tex b/Timescale.tex  index 1f30d75..3a8c7a1 100644  --- a/Timescale.tex  +++ b/Timescale.tex 
...
Tentatively, the baseline physics programme of TLEP would consist of   \begin{itemize}  \item two years at the Z pole (of which one year with longitudinal polarization and reduced luminosity); luminosity), with resonant depolarization of single bunches at O(20 minutes) intervals, for beam energy calibration;  \item one or two years at the WW threshold, with periodic returns at the Z peak (in the TLEP-W conditions) for detector calibrations; calibrations, and with resonant depolarization of single bunches at O(20 minutes) intervals, for beam energy calibration;  \item five years at 240 GeV as a Higgs factory, with periodic returns at the Z peak (in the TLEP-H conditions);   \item and five years at the $\ttbar$ threshold, with periodic returns at the Z peak (in the TLEP-t conditions).  \end{itemize}