Measuring the top-quark Yukawa coupling at hadron colliders via tth, h->WW

Abstract

We study the signal and background for the process tth, h->WW at the LHC and a 100 TeV VLHC. Signals are studied in two-, three-, and four-lepton final states. We find a statistical uncertainty in the top-quark Yukawa coupling at the LHC of 16%, 8%, 12% for m_h = 130, 160, 190 GeV, respectively. The statistical uncertainty at the VLHC is likely to be negligible in comparison with the systematic uncertainty.

11 pages, 3 figures

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• Search for the Standard Model Higgs Boson at LEP
• Higgs Radiation off Top Quarks at the Tevatron and the LHC
• Finite-Width Effects in Top Quark Production at Hadron Colliders
• Physics at Future Hadron Colliders

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