The measurement of the Higgs coupling to $W$ bosons is an important test of our understanding of the electroweak symmetry-breaking mechanism. We study the sensitivity of the International Linear Collider (ILC) to the presence of anomalous $H{W}^{+}{W}^{-}$ couplings using $ZH\to \nu \overline{\nu }W{W}^{*}\to \nu \overline{\nu }4j$ events. Using an effective Lagrangian approach, we calculate the differential decay rates of the Higgs boson including the effects of new dimension-five operators. We present a Monte Carlo simulation of events at the ILC, using a full detector simulation based on geant4 and a real event reconstruction chain. Expected constraints on the anomalous couplings are given.

• Received 6 December 2010

DOI:https://doi.org/10.1103/PhysRevD.88.013010