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Measuring anomalous couplings in H -> WW* decays at the International Linear Collider

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Measuring anomalous couplings in H -> WW* decays at the International Linear Collider

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Takubo, Yosuke; Hodgkinson, Robert N.; Ikematsu, Katsumasa; Fujii, Keisuke; Okada, Nobuchika; Yamamoto, Hitoshi

Aquest document és un/a article, creat/da en: 2013

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 HW+W- couplings using ZH -> nu(nu) over bar WW* -> nu(nu) over bar 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.

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