Mainz 2014 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 114: Higgs: Zerfall in WW 2

T 114.6: Vortrag

Donnerstag, 27. März 2014, 18:00–18:15, P104

Studies for Vector Boson Fusion in H→ WW searches at ATLAS — •Bonnie Chow, Johannes Elmsheuser, Nikolai Hartmann, Thomas Maier, and Christian Meineck — Ludwig-Maximilians-Universität München

Studies relating to the vector boson fusion (VBF) process in the search of the Standard Model Higgs boson in proton-proton-collisions at a centre-of-mass energy of √s=8 TeV with the ATLAS experiment at the LHC are presented. The focus of the analysis is the Higgs boson decay channel H → W⁺W⁻ → ℓ⁺ ν_ℓ ℓ⁻ν_ℓ where ℓ = e, µ . Since the data taken by ATLAS up to now have revealed a particle consistent with the Standard Model Higgs boson, it is necessary to investigate such a signal. The talk will show the gain achieved when including an improved VBF selection based on cuts and multivariate techniques and discuss the systematic uncertainties of the analysis.