Speaker
Stefan Dittmaier
(Albert Ludwigs Universitaet Freiburg (DE))
Description
The calculation of radiative corrections to resonance processes poses issues with gauge invariance owing to the necessary mix of perturbative orders after some Dyson summation of the potentially resonant propagator corrections. The talk reviews various schemes proposed to cure this problem and quantifies the corresponding theory uncertainties in the evaluation of electroweak corrections to Drell-Yan-like W/Z production. NLO electroweak corrections to W/Z production are also discussed for some scenarios of physics beyond the Standard Model such as a singlet Higgs extension, the Two-Higgs-Doublet Model, and the Minimal Supersymmetric Standard Model.
