Measuring Anomalous Couplings in H->WW* Decays at the International Linear Collider

Abstract

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 WW* -> nu nu 4j events. Using an effective Lagrangian approach, we calculate the differential decay rates of the Higgs boson including the effects of new dimension-5 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.

18 pages, 7 figures, 1 table

References in corpus (12)

• Observation of a new particle in the search for the Standard Model Higgs boson with the ATLAS detector at the LHC
• Observation of a new boson at a mass of 125 GeV with the CMS experiment at the LHC
• PYTHIA 6.4 Physics and Manual
• Aspects of CP violation in the HZZ coupling at the LHC
• Signatures of anomalous VVH interactions at a linear collider
• Measuring the Higgs-Vector boson Couplings at Linear $e^{+}{e}^{-}$ Collider
• Role of polarization in probing anomalous gauge interactions of the Higgs boson
• The LCFIVertex package: vertexing, flavour tagging and vertex charge reconstruction with an ILC vertex detector
• Use of transverse beam polarization to probe anomalous VVH interactions at a Linear Collider
• Event Reconstruction with MarlinReco at the ILC
• Low scale gravity mediation with warped extra dimension and collider phenomenology on the hidden sector
• Hidden particle production at the ILC

Cited by in corpus (1)

• $CP$-odd form factor in the $HWW$ vertex