Mainz 2014 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 113: Elektroschwache Physik (Theorie) 2

T 113.7: Vortrag

Donnerstag, 27. März 2014, 18:15–18:30, P103

Unitarity in Vector Boson ScatteringWolfgang Kilian1, Jürgen Reuter2, and •Marco Sekulla11University of Siegen, Department of Physics, D-57068 Siegen, Germany — 2DESY Theory Group, D-22603 Hamburg, Germany

Quasielastic scattering processes of weak vector bosons (W±, Z) are sensitive to deviations from the Standard Model Higgs sector. We use the ansatz of Effective Field Theories to describe New Physics (NP) contributions to Vector Bosons Scattering (VBS) via anomalous couplings and additional resonances in a model independent way. Because the Higgs unitarizes the VBS amplitude, these NP contributions will break unitarity.

In this talk I will describe how unitarity is re-established by the K-Matrix unitarisation scheme, which is implemented in the monte carlo generator WHIZARD.

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