6533b85cfe1ef96bd12bc892
RESEARCH PRODUCT
Measuring anomalous couplings inH→WW*decays at the International Linear Collider
Keisuke FujiiKatsumasa IkematsuHitoshi YamamotoRobert N. HodgkinsonYosuke TakuboNobuchika Okadasubject
PhysicsCouplingNuclear and High Energy PhysicsParticle physicsLarge Hadron ColliderInternational Linear ColliderHigh Energy Physics::PhenomenologyElectroweak interactionMonte Carlo methodNuclear physicsHiggs bosonHigh Energy Physics::ExperimentSensitivity (control systems)Bosondescription
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 $H{W}^{+}{W}^{\ensuremath{-}}$ couplings using $ZH\ensuremath{\rightarrow}\ensuremath{\nu}\overline{\ensuremath{\nu}}W{W}^{*}\ensuremath{\rightarrow}\ensuremath{\nu}\overline{\ensuremath{\nu}}4j$ 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.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2013-07-18 | Physical Review D |