Ponente
Dr.
Eric Feng
(Argonne National Laboratory (United States))
Descripción
The couplings of the Higgs boson are measured by the ATLAS experiment using the LHC Run I data sample. The data analyzed involve decays of the Higgs boson to pairs of photons, Z bosons, W bosons, tau leptons, or b-quarks. Evidence for Higgs boson decays into fermion pairs is found with 3.7 significance using the combination of the bb and tau-tau channels. The measured values and mass dependence of the couplings agree well with the predictions for the Standard Model Higgs boson. The coupling measurements are used to set limits on a composite Higgs boson, an additional electroweak singlet, two-Higgs-doublet-models, and a simplified Minimal Supersymmetric Standard Model. A search for the Zh-> ll to + missing transverse energy process is used together with the coupling measurements to constrain a Higgs portal to dark matter.
Autor primario
Lydia ROOS
(CERN)
