Speaker
Jürgen Reuter
(DESY Hamburg, Germany)
Description
The discovery of a light Higgs boson has all but strengthened the case of
weak vector boson scattering (VBS) at hadron colliders as a search vehicle for new physics,
as deviations in the Higgs saturation of the unitarization in that channel provide a huge
lever arm for searches. The very highest-energy nature of those events with large
diboson invariant masses notoriously plagues effective-field theory descriptions
aiming for model-independent approaches. We show how to accomodate this problem
by a unitarization prescription that allows to get meaningful limits
from data.This prescription saturizes vector boson scattering amplitudes to their
maximal values allowed by unitarity at high energies, and can accommodate both weakly
and strongly interacting models.Beyond the (unitarized)
EFT ansatz we also discuss generic scalar and tensor resonances in VBS
with special emphasis on the theoretical treatment of the high-energy behavior of tensor
resonances.
Author
Jürgen Reuter
(DESY Hamburg, Germany)
Co-authors
Marco Sekulla
(Universität Siegen)
Thorsten Ohl
(Würzburg University)
Prof.
Wolfgang Kilian
(University of Siegen)
