Patrick Janot edited FitConclusion.tex  over 10 years ago

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Within the mildly model-dependent assumptions used in the fit -- no exotic decays, and correlated up-type-quark couplings -- the projections for HL-LHC in Scenario 2 are truly impressive, and will further improve by including the other detector (ATLAS projections are available in Ref.~\cite{1307.7292}) and more additional  dedicated analyses in the combination. In this challenging context, TLEP data collected at 250 and 350 GeV would enable very significant improvements on these coupling measurements with sub-per-cent precision, well beyond the HL-LHC projected precisions, as deemed adequate to become sensitive to multi-TeV new physics. It is to be mentioned that energy upgrades to $\sqrt{s} = 500$ GeV, and possibly to $\sqrt{s} = 1$ TeV, with integrated luminosities of $500~\infb$ and $1~\inab$, respectively, are contemplated for the ILC. An energy upgrade for TLEP up to $\sqrt{s} = 500$ GeV with similar luminosity is also envisioned. The interest of $\epem$ collision data at centre-of-mass energies above 350 GeV for Higgs boson physics is briefly discussed in Section~\ref{sec:VHE-LHC}.