Future [Formula presented] Colliders’ Sensitivity to [Formula presented] Coupling and [Formula presented] Violation

We perform a complete simulation of the process [Formula presented], where [Formula presented] can be an electron, muon, or tau neutrino, in the context of a general Higgs coupling to [Formula presented] quarks. We parametrize the [Formula presented] coupling as [Formula presented]. Taking into account interference effects between pure Higgs and Standard Model contributions, we find that sensitivities of the order of [Formula presented] and [Formula presented] can be obtained at a future [Formula presented] collider for deviations of the [Formula presented] and [Formula presented] parameters, respectively, from their Standard Model values. Combining our analysis with an independent measurement of [Formula presented] can provide evidence about the [Formula presented] nature of the Higgs sector. © 2003 The American Physical Society.