Physics Gain of a Precise mt Measurement
Abstract
The top quark mass is currently measured to delta mtexp,Tevatron = 2.9 GeV and will be measured at the LHC to a precision of delta mtexp,LHC ≈ 1-2 GeV. We show that even this impressive precision will not be sufficient for many future physics applications. These include electroweak precision observables, Higgs physics in extensions of the Standard Model as well as cold dark matter predictions in Supersymmetry. The desired experimental precision can only be reached at the ILC with delta mtexp,ILC ≈ 100 MeV.
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