Patrick Janot added Higgs Couplings.tex  almost 11 years ago

Commit id: 779977538192ca3f6c3fe7bc901e97ca9bb090d5

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Another facet of the physics programme of the energy-frontier projects is the direct measurement of the Higgs boson coupling to the top quark -- through ${\rm t\bar t H}$ production --, and the measurement of the Higgs trilinear self-coupling -- through double Higgs production. Studies exist, albeit with different levels of maturity, for the sensitivity of ILC500, ILC1000~\cite{cite:ILCTDR}, CLIC~\cite{cite:CLICDR}, and HL-LHC~\cite{cite:ATLAS,cite:CMS} to these couplings. From the HL-LHC estimates and the ttH and HH production cross sections at higher energies~\cite{Mangano_Rojo_2012}, extrapolations for $300~\infb$ of pp collision data at HE-LHC ($\sqrt{s} =$ 33 TeV) and VHE-LHC ($\sqrt{s}=$ 100 TeV) can be inferred. An executive summary is displayed in Fig.~\ref{fig:VHELHC}.