Top physics beyond the LHC
arXiv:1701.06537
Abstract
Several proposals exist for energy-frontier facilities after the HL-LHC. In this contribution I review the potential of these facilities to perform key measurements of top quark properties and interacions. Top quark precision physics at a lepton collider provides excellent opportunities for the determination of the top quark mass and its couplings to neutral electro-weak gauge bosons. Measurements at very high center-of-mass energy at a new hadron collider likely offer the ultimate precision on the QCD interaction of the top quark and its coupling to the Higgs boson. The combination of a lepton and a hadron collider can improve the precision of all these measurements by two orders of magnitude with respect to the current state-of-the-art and by an order of magnitude compared to the precision envisaged after 3/ab at the LHC.
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