Dresden 2013 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 11: Elektroschwache Physik (Theorie) 2

T 11.7: Vortrag

Montag, 4. März 2013, 18:15–18:30, WIL-A120

Higgs Spin Determination in Vector-Boson Fusion — •Jessica Frank, Michael Rauch, and Dieter Zeppenfeld — ITP, Karlsruhe Institute of Technology, 76128 Karlsruhe, Germany

A new Higgs-like particle with a mass of about 126 GeV has been discovered at the LHC. For a verification that this is the Standard Model Higgs boson, all of its features, including its spin, need to be tested. Observation of this resonance in the di-photon channel disfavours a spin-1 particle due to the Landau-Yang theorem. Besides the spin-0 of the Higgs boson, a spin-2 particle would also be possible. In order to distinguish these two possibilities, we study the phenomenology of light Higgs-like spin-2 resonances produced in different vector-boson-fusion processes at the LHC. Starting from an effective model for the interaction of a spin-2 particle with electroweak gauge bosons, we calculate cross sections and differential distributions within the Monte Carlo program VBFNLO at NLO QCD accuracy.