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Wuppertal 2015 – scientific programme

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T: Fachverband Teilchenphysik

T 78: BSM Higgs (Theorie)

T 78.7: Talk

Wednesday, March 11, 2015, 18:15–18:30, K.11.07

Studying an Effective field theory for the Higgs boson with FittinoPhilip Bechtle1, Klaus Desch1, Alexander Knochel2, Michael Krämer2, Björn Sarrazin1, Tim Stefaniak3, and •Uddhipan Thakur11Physikalisches Institut, University of Bonn, Germany — 2Institute for Theoretical Particle Physics and Cosmology, RWTH Aachen, Germany — 3SCIPP, University of California, Santa Cruz, USA

The study of the properties of the discovered Higgs-Boson by the ATLAS and CMS experiments opens a new window to search for the effects of New Physics. Both the magnitude and the structure of effective Higgs couplings may be altered by new physics. While a change in magnitude typically leads to modified signal rates, different coupling structure may lead to modified kinematics of the Higgs production processes at the LHC.

We study constraints on New Physics from Higgs production at the LHC in the context of an effective field theory containing dimension-6 operators. The focus of this study is on associated production of a Higgs boson with a vector boson (W,Z). We use the Fittino framework to test the sensitivity of current and future LHC Higgs measurements on such operators and study the influence of altered kinematics by employing dedicated Monte Carlo simulations.

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